The Linux Page

Creating a drive mirror with LVM, including exact partition cloning

Logical Volume Manager: to ease the management of your hard drive partition

LVM today can create a mirror of your data (RAID 1) without having the need for mdraid/mdadm (or hardware raid).

I started writing this page in Nov 2012. Since then the LVM support has been improving quite a bit. making it easier and easier to group physical hard drive and setting them up in all sorts of ways (LVM now supports RAID 1, 4, 5, 6, 10. It also supports the special type called "Thin" which allows you to allocate more virtual disk space than is available physically. So you could pretend you have a hard drive of 1 Eb... and add physical space as you actually really need it.

In 2012, though, I ran in a problem: I did not find any documentation that makes sense and there didn't seem to be a graphical interface that could help you with that (at least not under Ubuntu Gnome.) That changed now. RedHat has a lot of pretty good docs and we have a KDE based graphical interface available.

Anyway... at the time, I decided to spend the time because that's probably less time anyway than trying to create and maintain an md device. (I did that in the old days and it's not practical at all.)

The fact is, it is rather simple, but requires quite a bit of knowledge.

New Installations & GParted

In 2020 (but it has been a while now), when you have a brand new computer and install the hard drives for the first time, the installer offers ou to create a mirror. This is much better than in the old days (befor 2012). It will setup the computer with an mdadm setup automatically and it just works.

However, this is not really what we want (well, maybe you prefer that method but then it's different than using the LVM system which is more versatil). You should either ignore the capability and install the OS on one drive and later change the settings, or use the advance features and setup the LVM then a RAID on the LVM. There is no options I've seen to do that mostly automatically.

As for partitions, by default Linux creates one root partition and one small boot partition. The boot parition is to be sure that your computer will be capable of starting up (i.e. the BIOS has to find the blocks, read them, start execution...) I strongly suggest you setup a separate /home partition too. This way you will be able to upgrade your computer without having to change the partitions at that time. (It's much harder and time consuming to change the parititions later).

If you are to use a database or other such software that save data under /var, then you may also want to have a separate partition for /var. It is also a good idea to separate the /home and /var but not as important for partitioning your devices.

The /home separate partition is expected to be an LVM parition on the one large partition GParted otherwise creates.

Copying the Partitions Exactly

First, I wanted the partitions to be exactly the same and using fdisk did not work. It did not want to create all the partitions saying that some were overlapping others. I had to use sfdisk instead. There are the 3 commands you need:

sfdisk -d /dev/sda >partitions.txt
vim partitions.txt
sfdisk /dev/sdb <partitions.txt

The vim in the middle is used to edit the file and replace all /dev/sda instances with /dev/sdb (obviously, you must map that to your hard drives!) You could instead use an sed command like this:

sed -e 's/sda/sdb/' sda-partitions.txt >sdb-partitions.txt

Notice that the file names are different so your sfdisk commands need to use those different filenames.

(Source: https://www.sharktooth.de/doku.php/linux:clone_disc_partition on a German website, but written in English)

The following is a sample partition that was converted from /dev/sda to /dev/sdb (i.e. this is AFTER the vim edit):

# partition table of /dev/sdb
unit: sectors

/dev/sdb1 : start=     2048, size=   497664, Id=83, bootable
/dev/sdb2 : start=   501758, size=3906527234, Id= 5
/dev/sdb3 : start=        0, size=        0, Id= 0
/dev/sdb4 : start=        0, size=        0, Id= 0
/dev/sdb5 : start=   501760, size=3906527232, Id=8e

Once I had the correct partitions, off I went to create a mirror of my 1 LVM partition.

Adding the New Drive as a LVM Mirror (-m1)

Now that we have a /dev/sdb5 partition which is an exact duplicate of our /dev/sda5 partition (parametrically) we can add it to the array as a mirror.

First check what you have with a scan:

lvm> pvscan
  PV /dev/sda5   VG isabelle   lvm2 [1.82 TiB / 132.00 MiB free]
  Total: 1 [1.82 TiB] / in use: 1 [1.82 TiB] / in no VG: 0 [0   ]

Assuming you just installed a system and used the default Ubuntu setup, you have one virtual group on /dev/sda5 that looks like this (drive sizes will vary though.) Here we see that the name of the virtual group is "isabelle".

You can also use the following commands to list the physical devices, the logical devices, and the groups:

lvm> pvs
lvm> lvs
lvm> vgs

For example, here is the output of an lvs:

lvm> lvs
  LV            VG      Attr       LSize    Pool Origin Data%  Meta%  Move Log         Cpy%Sync Convert
  root          tristan mwi-aom--- <250.00g                                [root_mlog] 100.00
  swap_1        tristan -wi-ao----  <15.97g
  isabelle-home tristan rwi-aor---   <1.56t                                            0.70

The Attr column shows us details about the logical (virtual) partition. Especially, here we see that the root partition has 'm', which means that the paritition is mirrored using the old "mirror" type. On the other hand, the isabelle-home partition uses 'r' which stands for "RAID1". I have to use the old mirror for the root because with the newer RAID1 version my computer doesn't boot at all. Using the rescue mode from my install CD was enough for me to be able to change the root from one mode to the other so I tested both many times. I was never able to boot on the "RAID1". It works each time with the "mirror" type.  This is why the output of lvs looks like this on this computer.

For more details use the display version instead:

lvm> pvdisplay
lvm> lvdisplay
lvm> vgdisplay

If you are in a console that has limited scrolling abilities. You can use the "s" version first, then use one of those names along the "dislpay" version. For example, to see the root partition of my isabelle's array:

lvm> lvdisplay tristan/root

We want to add the /dev/sdb5 physical device to that group. First create the physical device within LVM with:

lvm> pvcreate /dev/sdb5
  Writing physical volume data to disk "/dev/sdb5"
  Physical volume "/dev/sdb5" successfully created

This adds the partition /dev/sdb5 to the LVM array. We can do a pvscan again and see that the new physical drive exists in the LVM system:

lvm> pvscan
  PV /dev/sda5   VG isabelle        lvm2 [1.82 TiB / 132.00 MiB free]
  PV /dev/sdb5                      lvm2 [1.82 TiB]
  Total: 2 [3.64 TiB] / in use: 1 [1.82 TiB] / in no VG: 1 [1.82 TiB]

We notice that /dev/sdb5 is not part of any "VG" (virtual group). We use the vgextend command to add it to the existing VG:

lvm> vgextend isabelle /dev/sdb5
  Volume group "isabelle" successfully extended

Obviously, you want to change the name "isabelle" with the name of your VG. With Ubuntu they set it up to the name of your computer. To make sure it was properly added, we can use pvscan again:

lvm> pvscan
  PV /dev/sda5   VG isabelle   lvm2 [1.82 TiB / 132.00 MiB free]
  PV /dev/sdb5   VG isabelle   lvm2 [1.82 TiB / 1.82 TiB free]
  Total: 2 [3.64 TiB] / in use: 2 [3.64 TiB] / in no VG: 0 [0   ]

As we can see the new partition adds a lot of free space (1.82Tb free). That will be used as we create the mirror.

lvm> lvconvert -m1 /dev/isabelle/root
  isabelle/root: Converted: 0.0%
  [...snip...]
  isabelle/root: Converted: 100.0%

By default, the --type raid option is used (you can also specify it). This is a better option than --type mirror, which is now deprecated. Note that the RAID1 mode is close to instantaneous. No on the spot conversion is required. (please see WARNING below about the types)

If you used mirror (first letter in Attr is "m" lvs output—it was the default a while back), you can switch to raid using the lvconvert command like so:

lvm> lvconvert --type raid1 /dev/isabelle/root

If it tells you that it doesn't have enough room, use the lvreduce command to retrieve the size first. For example, if the lvconvert command tells you it needs 1 extend, you can run:

lvm> lvreduce -l -1 --resizefs /dev/isabelle/root

As proposed in the comment by Brent below, using the correct mirror log (i.e. on disk instead of memory) will allow your mirroring to function between reboots:

lvm> lvconvert -m 1 --mirrorlog mirrored --alloc anywhere /dev/isabelle/root

WARNING: keep in mind that it is better to use RAID1 (--type raid) than the olf mirror feature (which is now deprecated). So you should not need to change the mirror log. Instead you automatically get rmeta sub-partitions on each device which is much better for recovery (which is otherwise not really possible without a lot of work).

Here we convert the virtual group into a mirror level 1 group (i.e. RAID1). which has the effect of duplicating the hard drives immediately—which is a problem when the partitions are nearly 2Tb! Probably about 16 hours 2 days of work! (might be because the kids were playing on the computer while it was making the copy though.) md is better here... it does that in the background!

I don't have the final details yet, but one can use the lvs command with options as below to see that the mirror is indeed in place and what drives participate.

lvm> lvs -a -o +devices
  LV     VG       Attr     LSize  Pool Origin Data%  Move Log Copy%  Convert Devices          
  root   isabelle -wi-ao--  1.80t                                            /dev/sda5(0)     
  swap_1 isabelle -wi-ao-- 15.97g                                            /dev/sda5(472748)

The final output once you have a mirror looks like this:

WARNING: This output is from the old version of my array. (1) the root_log is not replicated which is BAD, (2) it uses the mirror capability instead of the new RAID one (i.e. mimage instead of rimage).

lvm> lvs -a -o +devices
  LV              VG       Attr     LSize  Pool Origin Data%  Move Log       Copy%  Convert Devices                          
  root            isabelle mwi-aom-  1.80t                         root_mlog 100.00         root_mimage_0(0),root_mimage_1(0)
  [root_mimage_0] isabelle iwi-aom-  1.80t                                                  /dev/sda5(0)                     
  [root_mimage_1] isabelle iwi-aom-  1.80t                                                  /dev/sdb5(0)                     
  [root_mlog]     isabelle lwi-aom-  4.00m                                                  /dev/sda5(476837)                
  swap_1          isabelle -wi-ao-- 15.97g                                                  /dev/sda5(472748)                

Note that the size of swap_1 is a 1 to 1 map of the memory (these computers have a total of 16Gb of RAM.)

(Source: http://www.novell.com/support/kb/doc.php?id=7009321 from Novell)

Hopefully you understand what you've just done... so you can repeat it for each virtual partition.

Warning

One thing to keep in mind: the LVM mirror does NOT mirror your /boot partition automatically. This being said, you won't lose your data, but you won't be able to reboot unless you correctly duplicate everything. This requires the /boot and grub proper installation which is not yet covered here.

Okay, what about a GUI app.?

There is now a graphical based application you can use to run the lvm commands.

sudo apt-get install kvpm

Note: This makes use of Qt and some other KDE extensions so you'll want to avoid it if you don't want to have anything to do with the KDE.

Once installed, you can start the tool with:

kvpm

At the top you'll see a tab called Grouped. That's where you'll see RAID as one device instead of 2 or more.

The tool works properly through SSH.

Resizing an LVM partition

This is annoying! You need to unmount a partition to resize it. That's not good, is it!? I thought that LVM would work without such drawback. The problem being that you cannot resize your root partition unless you boot on a CD or in another operating system (i.e. another Ubuntu install that boot with another partition.)

This being said, LVM still has advantages. Anyway, since I could not resize my root partition, I decided to repeat my duplication the same way as the first time. So it's going to take another 2 days. 8-P

You may be interested by Running Parted to Resize your Virtualbox Drive (including fixed drives) which explains how to do a resize of a VirtualBox Drive. It may be useful to resize a standard desktop or laptop drive too.

To shrink the size of a partition, you must also make sure to reduce the size of the file system before you redice the size of the actual partition.

For more info on resizing, check this page out: http://blog.shadypixel.com/how-to-shrink-an-lvm-volume-safely/

The commands used to resize a partition (making it smaller or larger):

# If mounted, unmount first otherwise it won't work
umount /mnt/<partition>

# In case the LVM system is not active
vgchange -ay

# First fix the file system; repeat until no more errors
# Note required in newer versions (2018+) since lvresize does it for us
e2fsck -f /dev/[volume-group]/[logical-volume]

# resize file system first if shrinking, last if enlarging
# You can use T, G, M, K for size (one letter) no decimal supported
# NOT REQUIRED (see Note below)
#resize2fs -p /dev/[volume-group]/[logical-volume] [size]

# now resize the LV partition
lvreduce --resizefs -L [newlvsize] /dev/[volume-group]/[logical-volume]

Note: The lvreduce with the --resizefs command line option already applies the resize2fs command automatically. So running resize2fs seperately is not required.

The "volume-group" is the RAID or HDD name. The "logical-volume" is the partition name. Generally, I find the names under /dev/mapper and in /etc/fstab.

Remember that resizing of the file system has to be done before when shrinking and after when enlarging your partition.

Root Partition Died

Last night, one of my computers using LVM2 decided to set my root partition as "deprecated". Needless to say, once the root partition is deprecated, you can't boot.

As far as I'm concerned, I find that there are several issues with newer versions of  Ubuntu in this situation:

  1. The GRUB screen does not appear anymore, that's a new (stupid if you ask me) feature which allows for a "clean looking booting experience a la MS-Windows" which is exactly why I don't like Windows (nor macos which does the exact same thing)
  2. The way to access GRUB is by hitting ESC like a maniac. This is totally inconsiderate. Luckily, there is still a way to revert that back to normal and get the damn thing to show up as normal. It may require you to reboot a few times to get it right. At least, I have not yet been able to get it right the first time. What that allows you to do is then boot in the recovery mode, although if your boot partition was hosed, chances that won't help you (I did not try)
  3. The boot process itself hides the console by showing you a nice graphic with a few dots lighting up as things boot. Neat. Just like MS-Windows (again) that means you don't see the error(s) that prevent a computer from booting. Who thought of that?! Maybe there is a keystroke to go back to the console... I'll search on that.

Here for the rant. Now, the problem today was that somehow the system decided to mark the second hard drive as missing. It's still there and works just fine, thank you. Why would LVM mark the drive missing? Well... it looks like the md software can go missing (i.e. I mirror my root partition) and when that happens the LVM marks that specific entry with the flag missing.

First I thought I'd check the file system, but e2fsck would not work if I did not already had the LVM properly mounted...

After searching for information about the situation, I finally found a message from a user who ran in a similar problem, although in his case it looks like it was right after installing the mirror system and he says he did not install madm which would have been the culprit. But you don't need to have madm if you mirror through LVM. So I'm not so sure that his reasons were correct. In any even, he had a command to retrieve the LVM configuration file that went like this:

# vgcfgbackup -f vg.cfg

This gives us the configuration of the LVM as per your current system. This includes many dates, versions, disk information with sizes, positions, flags, etc.

Looking through the file we see this line:

   flags = ["MISSING"]

It tells the system the corresponding physical disk is missing and thus the logical volume can't be rebuilt on a reboot. Since this was the only sensible solution to my problem and since my second hard drive looked just fine [at the time... after a few more days, the drive disappeared to the point that I could not even enter the BIOS—the keyboards were not responsive until after the system tried to reboot; removing the second drive resolved the problem; so definitely a deffective drive in the end], I simply ran the steps that user mentioned: (1) delete the "MISSING" flag:

   flags = []

and (2) restore that updated file to the LVM system with:

# vgcfgrestore -f vg.cfg tristan

For the restore I had to specify the name of the group. If you have multiple groups, you may want to specify the name to the vgcfgbackup command so when you restore it works as expected. I don't have a way to test that theory, so you're on your own if you're in that situation.

After that change, I tried a vgscan which now included the root partition and tried a mount which also worked. I did umount and ran e2fsck against the partition and it said it was clean. So I think I was all good except for that one VG configuration flag.

The following is the complete output of the vgcfgbackup command:

# Generated by LVM2 version 2.02.176(2) (2017-11-03): Mon Feb 17 11:26:52 2020

contents = "Text Format Volume Group"
version = 1

description = "vgcfgbackup -f vg.cfg"

creation_host = "tristan"    # Linux tristan 4.15.0-76-generic #86-Ubuntu SMP Fri Jan 17 17:24:28 UTC 2020 x86_64
creation_time = 1581967612    # Mon Feb 17 11:26:52 2020

tristan {
    id = "ntPJjD-J0JN-BtxH-OF1A-zkaP-BLbh-k1vWLh"
    seqno = 41
    format = "lvm2"            # informational
    status = ["RESIZEABLE", "READ", "WRITE"]
    flags = []
    extent_size = 8192        # 4 Megabytes
    max_lv = 0
    max_pv = 0
    metadata_copies = 0

    physical_volumes {

        pv0 {
            id = "igXHEd-yvLC-8IFs-8MDg-Tx6T-YVTa-lz57xU"
            device = "/dev/sda5"    # Hint only

            status = ["ALLOCATABLE"]
            flags = []
            dev_size = 3906527232    # 1.81912 Terabytes
            pe_start = 2048
            pe_count = 476870    # 1.81911 Terabytes
        }

        pv1 {
            id = "wbaVqY-EtB2-yS8p-1Eji-NoAL-j5RV-mzYdFP"
            device = "/dev/sdb5"    # Hint only

            status = ["ALLOCATABLE"]
            flags = ["MISSING"]
            dev_size = 3906527232    # 1.81912 Terabytes
            pe_start = 2048
            pe_count = 476870    # 1.81911 Terabytes
        }
    }

    logical_volumes {

        root {
            id = "1U8OpZ-OZMv-ZnRO-K26J-sKTn-EeRo-XFA1IK"
            status = ["READ", "WRITE", "VISIBLE"]
            flags = []
            creation_time = 1354430444    # 2012-12-01 22:40:44 -0800
            creation_host = "tristan"
            segment_count = 1

            segment1 {
                start_extent = 0
                extent_count = 63999    # 249.996 Gigabytes

                type = "mirror"
                mirror_count = 2
                mirror_log = "root_mlog"
                region_size = 1024

                mirrors = [
                    "root_mimage_0", 0,
                    "root_mimage_1", 0
                ]
            }
        }

        swap_1 {
            id = "KEuNaN-IShS-ER5P-7fTi-IwD4-mHeX-aqS3WL"
            status = ["READ", "WRITE", "VISIBLE"]
            flags = []
            creation_time = 1354430444    # 2012-12-01 22:40:44 -0800
            creation_host = "tristan"
            segment_count = 1

            segment1 {
                start_extent = 0
                extent_count = 4088    # 15.9688 Gigabytes

                type = "striped"
                stripe_count = 1    # linear

                stripes = [
                    "pv0", 472748
                ]
            }
        }

        tristan-home {
            id = "av1jII-4xV0-UmBe-vpRG-143y-sUhs-LY2ley"
            status = ["READ", "WRITE", "VISIBLE"]
            flags = []
            creation_time = 1579119574    # 2020-01-15 12:19:34 -0800
            creation_host = "tristan"
            segment_count = 4

            segment1 {
                start_extent = 0
                extent_count = 191148    # 746.672 Gigabytes

                type = "striped"
                stripe_count = 1    # linear

                stripes = [
                    "pv0", 281600
                ]
            }
            segment2 {
                start_extent = 191148
                extent_count = 7    # 28 Megabytes

                type = "striped"
                stripe_count = 1    # linear

                stripes = [
                    "pv0", 476837
                ]
            }
            segment3 {
                start_extent = 191155
                extent_count = 217600    # 850 Gigabytes

                type = "striped"
                stripe_count = 1    # linear

                stripes = [
                    "pv0", 64000
                ]
            }
            segment4 {
                start_extent = 408755
                extent_count = 25    # 100 Megabytes

                type = "striped"
                stripe_count = 1    # linear

                stripes = [
                    "pv0", 476845
                ]
            }
        }

        root_mimage_0 {
            id = "0vApwb-6YBq-JPsf-ITt1-tZG8-OXgl-1o4ALu"
            status = ["READ", "WRITE"]
            flags = []
            creation_time = 1354523229    # 2012-12-03 00:27:09 -0800
            creation_host = "tristan"
            segment_count = 1

            segment1 {
                start_extent = 0
                extent_count = 63999    # 249.996 Gigabytes

                type = "striped"
                stripe_count = 1    # linear

                stripes = [
                    "pv0", 0
                ]
            }
        }

        root_mimage_1 {
            id = "HtsJVj-bdTV-DfEa-Im5O-XvJJ-kgrK-5pUwl2"
            status = ["READ", "WRITE"]
            flags = []
            creation_time = 1354523229    # 2012-12-03 00:27:09 -0800
            creation_host = "tristan"
            segment_count = 1

            segment1 {
                start_extent = 0
                extent_count = 63999    # 249.996 Gigabytes

                type = "striped"
                stripe_count = 1    # linear

                stripes = [
                    "pv1", 0
                ]
            }
        }

        root_mlog {
            id = "SfTj6B-du0z-TX3c-xrY9-Y6Lr-DjLJ-k2RVKv"
            status = ["READ", "WRITE"]
            flags = []
            creation_time = 1579570494    # 2020-01-20 17:34:54 -0800
            creation_host = "ubuntu"
            allocation_policy = "normal"
            segment_count = 1

            segment1 {
                start_extent = 0
                extent_count = 1    # 4 Megabytes

                type = "mirror"
                mirror_count = 2
                region_size = 4096

                mirrors = [
                    "root_mlog_mimage_0", 0,
                    "root_mlog_mimage_1", 0
                ]
            }
        }

        root_mlog_mimage_0 {
            id = "2xYHUD-7D8y-vi30-OcgM-ZQZu-3KX8-wQc601"
            status = ["READ", "WRITE"]
            flags = []
            creation_time = 1579571212    # 2020-01-20 17:46:52 -0800
            creation_host = "ubuntu"
            segment_count = 1

            segment1 {
                start_extent = 0
                extent_count = 1    # 4 Megabytes

                type = "striped"
                stripe_count = 1    # linear

                stripes = [
                    "pv1", 472781
                ]
            }
        }

        root_mlog_mimage_1 {
            id = "QuUCTP-IxuA-DZeK-3AhJ-SZQk-Ti4v-phwIVh"
            status = ["READ", "WRITE"]
            flags = []
            creation_time = 1579571212    # 2020-01-20 17:46:52 -0800
            creation_host = "ubuntu"
            segment_count = 1

            segment1 {
                start_extent = 0
                extent_count = 1    # 4 Megabytes

                type = "striped"
                stripe_count = 1    # linear

                stripes = [
                    "pv1", 63999
                ]
            }
        }
    }

}

As I was trying to investigate, I used this command:

# vgchange -ay

from my rescue console. This told me that the root parition was not going to be available because it's just not valid (degraded, as in a physical disk is missing).

I wanted to see more, so I used the verbose command line option like so:

# vgchange -ay -vvvv > vgchange-info.txt

and I have a copy of that output below.

Here is one line of interest:

#cache/lvmcache.c:1871         lvmcache /dev/sdb5: now in VG #orphans_lvm2 (#orphans_lvm2) with 0 mda(s).

An "orphan" in a mirror (RAID1) system is a missing disk. So here we had the answer.

#lvmcmdline.c:2787         Parsing: vgchange -ay -vvvv
#lvmcmdline.c:1868         Using command index 116 id vgchange_activate enum 98.
#config/config.c:1468       devices/global_filter not found in config: defaulting to global_filter = [ "a|.*/|" ]
#libdm-config.c:997       Setting global/locking_type to 1
#libdm-config.c:1061       Setting global/use_lvmetad to 0
#libdm-config.c:1061       Setting devices/sysfs_scan to 1
#filters/filter-sysfs.c:327         Sysfs filter initialised.
#filters/filter-internal.c:77         internal filter initialised.
#filters/filter-type.c:56         LVM type filter initialised.
#filters/filter-usable.c:192         Usable device filter initialised.
#libdm-config.c:1061       Setting devices/multipath_component_detection to 1
#filters/filter-mpath.c:291         mpath filter initialised.
#filters/filter-partitioned.c:59         Partitioned filter initialised.
#libdm-config.c:1061       Setting devices/md_component_detection to 1
#filters/filter-md.c:73         MD filter initialised.
#libdm-config.c:1061       Setting devices/fw_raid_component_detection to 0
#filters/filter-composite.c:104         Composite filter initialised.
#libdm-config.c:1061       Setting devices/ignore_suspended_devices to 0
#libdm-config.c:1061       Setting devices/ignore_lvm_mirrors to 1
#libdm-config.c:966       Setting devices/cache_dir to /run/lvm
#libdm-config.c:966       Setting devices/cache_file_prefix to
#libdm-config.c:975       devices/cache not found in config: defaulting to /run/lvm/.cache
#filters/filter-persistent.c:368         Persistent filter initialised.
#libdm-config.c:1061       Setting devices/write_cache_state to 1
#libdm-config.c:1061       Setting global/use_lvmetad to 0
#device/dev-io.c:570         Opened /run/lvm/.cache RO
#device/dev-cache.c:356         /dev/block/8:17: Added to device cache (8:17)
#device/dev-cache.c:1426         Using /dev/block/8:17
#device/dev-cache.c:356         /dev/block/8:33: Added to device cache (8:33)
#device/dev-cache.c:1426         Using /dev/block/8:33
#device/dev-cache.c:356         /dev/mapper/tristan-tristan--home: Added to device cache (253:1)
#device/dev-cache.c:1426         Using /dev/mapper/tristan-tristan--home
#device/dev-cache.c:356         /dev/tristan/swap_1: Added to device cache (253:0)
#device/dev-cache.c:1426         Using /dev/tristan/swap_1
#device/dev-cache.c:356         /dev/disk/by-id/ata-ST2000DM001-9YN164_W1E1W2EQ-part5: Added to device cache (8:21)
#device/dev-cache.c:1426         Using /dev/disk/by-id/ata-ST2000DM001-9YN164_W1E1W2EQ-part5
#device/dev-cache.c:356         /dev/disk/by-id/ata-WDC_WD20EARX-00PASB0_WD-WCAZAH581091-part5: Added to device cache (8:5)
#device/dev-cache.c:1426         Using /dev/disk/by-id/ata-WDC_WD20EARX-00PASB0_WD-WCAZAH581091-part5
#device/dev-cache.c:352         /dev/disk/by-uuid/82653bb1-b4a8-4fc8-968a-f7d890794775: Aliased to /dev/tristan/swap_1 in device cache (253:0)
#device/dev-cache.c:1426         Using /dev/tristan/swap_1
#device/dev-cache.c:352         /dev/disk/by-id/wwn-0x5000c5005b410358-part1: Aliased to /dev/block/8:17 in device cache (preferred name) (8:17)
#device/dev-cache.c:1426         Using /dev/disk/by-id/wwn-0x5000c5005b410358-part1
#device/dev-cache.c:352         /dev/block/253:1: Aliased to /dev/mapper/tristan-tristan--home in device cache (253:1)
#device/dev-cache.c:1426         Using /dev/mapper/tristan-tristan--home
#device/dev-cache.c:352         /dev/disk/by-label/tristan-home: Aliased to /dev/mapper/tristan-tristan--home in device cache (253:1)
#device/dev-cache.c:1426         Using /dev/mapper/tristan-tristan--home
#device/dev-cache.c:352         /dev/disk/by-id/dm-uuid-LVM-ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLhav1jII4xV0UmBevpRG143ysUhsLY2ley: Aliased to /dev/mapper/tristan-tristan--home in device cache (253:1)
#device/dev-cache.c:1426         Using /dev/mapper/tristan-tristan--home
#device/dev-cache.c:352         /dev/disk/by-uuid/fbd197ee-5a8d-44c1-9fbf-1821ab8962d9: Aliased to /dev/mapper/tristan-tristan--home in device cache (253:1)
#device/dev-cache.c:1426         Using /dev/mapper/tristan-tristan--home
#device/dev-cache.c:352         /dev/block/8:5: Aliased to /dev/disk/by-id/ata-WDC_WD20EARX-00PASB0_WD-WCAZAH581091-part5 in device cache (8:5)
#device/dev-cache.c:1426         Using /dev/disk/by-id/ata-WDC_WD20EARX-00PASB0_WD-WCAZAH581091-part5
#device/dev-cache.c:352         /dev/disk/by-id/wwn-0x50014ee2b211ce48-part5: Aliased to /dev/disk/by-id/ata-WDC_WD20EARX-00PASB0_WD-WCAZAH581091-part5 in device cache (8:5)
#device/dev-cache.c:1426         Using /dev/disk/by-id/ata-WDC_WD20EARX-00PASB0_WD-WCAZAH581091-part5
#device/dev-cache.c:352         /dev/disk/by-id/dm-uuid-LVM-ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLhKEuNaNIShSER5P7fTiIwD4mHeXaqS3WL: Aliased to /dev/tristan/swap_1 in device cache (253:0)
#device/dev-cache.c:1426         Using /dev/tristan/swap_1
#device/dev-cache.c:352         /dev/disk/by-path/pci-0000:00:1f.2-ata-1-part5: Aliased to /dev/disk/by-id/ata-WDC_WD20EARX-00PASB0_WD-WCAZAH581091-part5 in device cache (8:5)
#device/dev-cache.c:1426         Using /dev/disk/by-id/ata-WDC_WD20EARX-00PASB0_WD-WCAZAH581091-part5
#device/dev-cache.c:352         /dev/disk/by-path/pci-0000:00:1f.2-ata-2-part1: Aliased to /dev/disk/by-id/wwn-0x5000c5005b410358-part1 in device cache (8:17)
#device/dev-cache.c:1426         Using /dev/disk/by-id/wwn-0x5000c5005b410358-part1
#device/dev-cache.c:352         /dev/sda5: Aliased to /dev/disk/by-id/ata-WDC_WD20EARX-00PASB0_WD-WCAZAH581091-part5 in device cache (preferred name) (8:5)
#device/dev-cache.c:1426         Using /dev/sda5
#device/dev-cache.c:352         /dev/sdb5: Aliased to /dev/disk/by-id/ata-ST2000DM001-9YN164_W1E1W2EQ-part5 in device cache (preferred name) (8:21)
#device/dev-cache.c:1426         Using /dev/sdb5
#device/dev-cache.c:352         /dev/block/8:21: Aliased to /dev/sdb5 in device cache (8:21)
#device/dev-cache.c:1426         Using /dev/sdb5
#device/dev-cache.c:352         /dev/disk/by-partuuid/000026c1-05: Aliased to /dev/sda5 in device cache (8:5)
#device/dev-cache.c:1426         Using /dev/sda5
#device/dev-cache.c:352         /dev/block/253:0: Aliased to /dev/tristan/swap_1 in device cache (253:0)
#device/dev-cache.c:1426         Using /dev/tristan/swap_1
#device/dev-cache.c:356         /dev/block/8:1: Added to device cache (8:1)
#device/dev-cache.c:1426         Using /dev/block/8:1
#device/dev-cache.c:352         /dev/disk/by-id/wwn-0x50014ee2b211ce48-part1: Aliased to /dev/block/8:1 in device cache (preferred name) (8:1)
#device/dev-cache.c:1426         Using /dev/disk/by-id/wwn-0x50014ee2b211ce48-part1
#device/dev-cache.c:352         /dev/disk/by-path/pci-0000:00:1f.2-ata-4-part1: Aliased to /dev/block/8:33 in device cache (preferred name) (8:33)
#device/dev-cache.c:1426         Using /dev/disk/by-path/pci-0000:00:1f.2-ata-4-part1
#device/dev-cache.c:352         /dev/disk/by-path/pci-0000:00:1f.2-ata-1-part1: Aliased to /dev/disk/by-id/wwn-0x50014ee2b211ce48-part1 in device cache (8:1)
#device/dev-cache.c:1426         Using /dev/disk/by-id/wwn-0x50014ee2b211ce48-part1
#device/dev-cache.c:352         /dev/disk/by-path/pci-0000:00:1f.2-ata-2-part5: Aliased to /dev/sdb5 in device cache (8:21)
#device/dev-cache.c:1426         Using /dev/sdb5
#device/dev-cache.c:352         /dev/disk/by-uuid/26aeef9d-738d-42b8-9f97-0d26e9744a16: Aliased to /dev/disk/by-path/pci-0000:00:1f.2-ata-4-part1 in device cache (8:33)
#device/dev-cache.c:1426         Using /dev/disk/by-path/pci-0000:00:1f.2-ata-4-part1
#device/dev-cache.c:352         /dev/sda1: Aliased to /dev/disk/by-id/wwn-0x50014ee2b211ce48-part1 in device cache (preferred name) (8:1)
#device/dev-cache.c:1426         Using /dev/sda1
#device/dev-cache.c:352         /dev/sdb1: Aliased to /dev/disk/by-id/wwn-0x5000c5005b410358-part1 in device cache (preferred name) (8:17)
#device/dev-cache.c:1426         Using /dev/sdb1
#device/dev-cache.c:352         /dev/sdc1: Aliased to /dev/disk/by-path/pci-0000:00:1f.2-ata-4-part1 in device cache (preferred name) (8:33)
#device/dev-cache.c:1426         Using /dev/sdc1
#device/dev-cache.c:352         /dev/disk/by-partuuid/000026c1-01: Aliased to /dev/sda1 in device cache (8:1)
#device/dev-cache.c:1426         Using /dev/sda1
#device/dev-cache.c:352         /dev/disk/by-id/dm-name-tristan-swap_1: Aliased to /dev/tristan/swap_1 in device cache (253:0)
#device/dev-cache.c:1426         Using /dev/tristan/swap_1
#device/dev-cache.c:352         /dev/disk/by-id/ata-WDC_WD20EARX-00PASB0_WD-WCAZAH581091-part1: Aliased to /dev/sda1 in device cache (8:1)
#device/dev-cache.c:1426         Using /dev/sda1
#device/dev-cache.c:352         /dev/disk/by-id/wwn-0x5000c5005b410358-part5: Aliased to /dev/sdb5 in device cache (8:21)
#device/dev-cache.c:1426         Using /dev/sdb5
#device/dev-cache.c:352         /dev/mapper/tristan-swap_1: Aliased to /dev/tristan/swap_1 in device cache (253:0)
#device/dev-cache.c:1426         Using /dev/tristan/swap_1
#device/dev-cache.c:352         /dev/dm-1: Aliased to /dev/mapper/tristan-tristan--home in device cache (253:1)
#device/dev-cache.c:1426         Using /dev/mapper/tristan-tristan--home
#device/dev-cache.c:352         /dev/disk/by-uuid/0dcd8225-0c85-49d7-8df7-c5298478587f: Aliased to /dev/sda1 in device cache (8:1)
#device/dev-cache.c:1426         Using /dev/sda1
#device/dev-cache.c:352         /dev/tristan/tristan-home: Aliased to /dev/mapper/tristan-tristan--home in device cache (preferred name) (253:1)
#device/dev-cache.c:1426         Using /dev/tristan/tristan-home
#device/dev-cache.c:352         /dev/disk/by-id/dm-name-tristan-tristan--home: Aliased to /dev/tristan/tristan-home in device cache (253:1)
#device/dev-cache.c:1426         Using /dev/tristan/tristan-home
#device/dev-cache.c:352         /dev/disk/by-partuuid/56312451-01: Aliased to /dev/sdc1 in device cache (8:33)
#device/dev-cache.c:1426         Using /dev/sdc1
#device/dev-cache.c:352         /dev/disk/by-id/ata-SanDisk_SSD_PLUS_1000GB_190529800916-part1: Aliased to /dev/sdc1 in device cache (8:33)
#device/dev-cache.c:1426         Using /dev/sdc1
#device/dev-cache.c:352         /dev/disk/by-id/ata-ST2000DM001-9YN164_W1E1W2EQ-part1: Aliased to /dev/sdb1 in device cache (8:17)
#device/dev-cache.c:1426         Using /dev/sdb1
#device/dev-cache.c:352         /dev/dm-0: Aliased to /dev/tristan/swap_1 in device cache (253:0)
#device/dev-cache.c:1426         Using /dev/tristan/swap_1
#device/dev-cache.c:352         /dev/disk/by-id/wwn-0x5001b448b92dd659-part1: Aliased to /dev/sdc1 in device cache (8:33)
#device/dev-cache.c:1426         Using /dev/sdc1
#device/dev-cache.c:356         /dev/loop6: Added to device cache (7:6)
#device/dev-cache.c:356         /dev/loop4: Added to device cache (7:4)
#device/dev-cache.c:356         /dev/loop2: Added to device cache (7:2)
#device/dev-cache.c:356         /dev/loop0: Added to device cache (7:0)
#device/dev-cache.c:356         /dev/sdb2: Added to device cache (8:18)
#device/dev-cache.c:356         /dev/loop7: Added to device cache (7:7)
#device/dev-cache.c:356         /dev/sdb: Added to device cache (8:16)
#device/dev-cache.c:356         /dev/loop5: Added to device cache (7:5)
#device/dev-cache.c:356         /dev/sdc: Added to device cache (8:32)
#device/dev-cache.c:356         /dev/sr0: Added to device cache (11:0)
#device/dev-cache.c:356         /dev/loop3: Added to device cache (7:3)
#device/dev-cache.c:356         /dev/loop1: Added to device cache (7:1)
#device/dev-cache.c:356         /dev/sda2: Added to device cache (8:2)
#device/dev-cache.c:356         /dev/sda: Added to device cache (8:0)
#filters/filter-persistent.c:137       Loaded persistent filter cache from /run/lvm/.cache
#device/dev-io.c:625         Closed /run/lvm/.cache
#libdm-config.c:966       Setting activation/activation_mode to degraded
#libdm-config.c:1074       metadata/record_lvs_history not found in config: defaulting to 0
#lvmcmdline.c:2853         DEGRADED MODE. Incomplete RAID LVs will be processed.
#libdm-config.c:1061       Setting activation/monitoring to 1
#lvmcmdline.c:2859         Processing: vgchange -ay -vvvv
#lvmcmdline.c:2860         Command pid: 7791
#lvmcmdline.c:2861         system ID:
#lvmcmdline.c:2864         O_DIRECT will be used
#libdm-config.c:997       Setting global/locking_type to 1
#libdm-config.c:1061       Setting global/wait_for_locks to 1
#locking/locking.c:129       File-based locking selected.
#libdm-config.c:1061       Setting global/prioritise_write_locks to 1
#libdm-config.c:966       Setting global/locking_dir to /run/lock/lvm
#libdm-config.c:1061       Setting global/use_lvmlockd to 0
#libdm-config.c:975       report/output_format not found in config: defaulting to basic
#libdm-config.c:1074       log/report_command_log not found in config: defaulting to 0
#toollib.c:2182         Processing each VG
#toollib.c:2234         Get list of VGs on system
#cache/lvmcache.c:1139       Scanning device labels
#ioctl/libdm-iface.c:1848         dm version   [ opencount flush ]   [16384] (*1)
#ioctl/libdm-iface.c:1848         dm status   (253:0) [ noopencount noflush ]   [16384] (*1)
#device/dev-io.c:570         Opened /dev/tristan/swap_1 RO O_DIRECT
#device/dev-io.c:330       /dev/tristan/swap_1: size is 33488896 sectors
#device/dev-io.c:625         Closed /dev/tristan/swap_1
#device/dev-io.c:570         Opened /dev/tristan/swap_1 RO O_DIRECT
#device/dev-io.c:145         /dev/tristan/swap_1: block size is 4096 bytes
#device/dev-io.c:156         /dev/tristan/swap_1: physical block size is 4096 bytes
#device/dev-io.c:625         Closed /dev/tristan/swap_1
#device/dev-io.c:308       /dev/tristan/swap_1: using cached size 33488896 sectors
#device/dev-io.c:570         Opened /dev/tristan/swap_1 RO O_DIRECT
#device/dev-io.c:145         /dev/tristan/swap_1: block size is 4096 bytes
#device/dev-io.c:156         /dev/tristan/swap_1: physical block size is 4096 bytes
#device/dev-io.c:625         Closed /dev/tristan/swap_1
#device/dev-cache.c:1536         Using /dev/tristan/swap_1
#label/label.c:286         Reading label from device /dev/tristan/swap_1
#device/dev-io.c:570         Opened /dev/tristan/swap_1 RO O_DIRECT
#device/dev-io.c:145         /dev/tristan/swap_1: block size is 4096 bytes
#device/dev-io.c:156         /dev/tristan/swap_1: physical block size is 4096 bytes
#label/label.c:189       /dev/tristan/swap_1: No label detected
#device/dev-io.c:625         Closed /dev/tristan/swap_1
#device/dev-cache.c:1536         Using /dev/sda1
#label/label.c:286         Reading label from device /dev/sda1
#device/dev-io.c:570         Opened /dev/sda1 RO O_DIRECT
#device/dev-io.c:145         /dev/sda1: block size is 4096 bytes
#device/dev-io.c:156         /dev/sda1: physical block size is 4096 bytes
#label/label.c:189       /dev/sda1: No label detected
#device/dev-io.c:625         Closed /dev/sda1
#ioctl/libdm-iface.c:1848         dm status   (253:1) [ noopencount noflush ]   [16384] (*1)
#device/dev-io.c:570         Opened /dev/tristan/tristan-home RO O_DIRECT
#device/dev-io.c:330       /dev/tristan/tristan-home: size is 3348725760 sectors
#device/dev-io.c:625         Closed /dev/tristan/tristan-home
#device/dev-io.c:570         Opened /dev/tristan/tristan-home RO O_DIRECT
#device/dev-io.c:145         /dev/tristan/tristan-home: block size is 4096 bytes
#device/dev-io.c:156         /dev/tristan/tristan-home: physical block size is 4096 bytes
#device/dev-io.c:625         Closed /dev/tristan/tristan-home
#device/dev-io.c:308       /dev/tristan/tristan-home: using cached size 3348725760 sectors
#device/dev-io.c:570         Opened /dev/tristan/tristan-home RO O_DIRECT
#device/dev-io.c:145         /dev/tristan/tristan-home: block size is 4096 bytes
#device/dev-io.c:156         /dev/tristan/tristan-home: physical block size is 4096 bytes
#device/dev-io.c:625         Closed /dev/tristan/tristan-home
#device/dev-cache.c:1536         Using /dev/tristan/tristan-home
#label/label.c:286         Reading label from device /dev/tristan/tristan-home
#device/dev-io.c:570         Opened /dev/tristan/tristan-home RO O_DIRECT
#device/dev-io.c:145         /dev/tristan/tristan-home: block size is 4096 bytes
#device/dev-io.c:156         /dev/tristan/tristan-home: physical block size is 4096 bytes
#label/label.c:189       /dev/tristan/tristan-home: No label detected
#device/dev-io.c:625         Closed /dev/tristan/tristan-home
#device/dev-cache.c:1536         Using /dev/sda5
#label/label.c:286         Reading label from device /dev/sda5
#device/dev-io.c:570         Opened /dev/sda5 RO O_DIRECT
#device/dev-io.c:145         /dev/sda5: block size is 4096 bytes
#device/dev-io.c:156         /dev/sda5: physical block size is 4096 bytes
#label/label.c:167       /dev/sda5: lvm2 label detected at sector 1
#cache/lvmcache.c:1871         lvmcache /dev/sda5: now in VG #orphans_lvm2 (#orphans_lvm2) with 0 mda(s).
#format_text/text_label.c:422         /dev/sda5: PV header extension version 2 found
#format_text/format-text.c:1260         /dev/sda5: Found metadata at 174080 size 3722 (in area at 4096 size 1044480) for tristan (ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLh)
#cache/lvmcache.c:522         lvmcache has no info for vgname "tristan" with VGID ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLh.
#cache/lvmcache.c:522         lvmcache has no info for vgname "tristan".
#cache/lvmcache.c:1871         lvmcache /dev/sda5: now in VG tristan with 1 mda(s).
#cache/lvmcache.c:1635         lvmcache /dev/sda5: VG tristan: set VGID to ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLh.
#cache/lvmcache.c:1908         lvmcache /dev/sda5: VG tristan: set creation host to ubuntu.
#cache/lvmcache.c:1967         lvmcache /dev/sda5: VG tristan: stored metadata checksum 0x1223dbb1 with size 3722.
#device/dev-io.c:625         Closed /dev/sda5
#device/dev-cache.c:1536         Using /dev/sdb1
#label/label.c:286         Reading label from device /dev/sdb1
#device/dev-io.c:570         Opened /dev/sdb1 RO O_DIRECT
#device/dev-io.c:145         /dev/sdb1: block size is 4096 bytes
#device/dev-io.c:156         /dev/sdb1: physical block size is 4096 bytes
#label/label.c:189       /dev/sdb1: No label detected
#device/dev-io.c:625         Closed /dev/sdb1
#device/dev-cache.c:1536         Using /dev/sdb5
#label/label.c:286         Reading label from device /dev/sdb5
#device/dev-io.c:570         Opened /dev/sdb5 RO O_DIRECT
#device/dev-io.c:145         /dev/sdb5: block size is 4096 bytes
#device/dev-io.c:156         /dev/sdb5: physical block size is 4096 bytes
#label/label.c:167       /dev/sdb5: lvm2 label detected at sector 1
#cache/lvmcache.c:1871         lvmcache /dev/sdb5: now in VG #orphans_lvm2 (#orphans_lvm2) with 0 mda(s).
#format_text/text_label.c:422         /dev/sdb5: PV header extension version 2 found
#format_text/format-text.c:1260         /dev/sdb5: Using cached metadata at 134144 size 3722 (in area at 4096 size 1044480) for tristan (ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLh)
#cache/lvmcache.c:1871         lvmcache /dev/sdb5: now in VG tristan (ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLh) with 1 mda(s).
#device/dev-io.c:625         Closed /dev/sdb5
#device/dev-cache.c:1536         Using /dev/sdc1
#label/label.c:286         Reading label from device /dev/sdc1
#device/dev-io.c:570         Opened /dev/sdc1 RO O_DIRECT
#device/dev-io.c:145         /dev/sdc1: block size is 4096 bytes
#device/dev-io.c:156         /dev/sdc1: physical block size is 512 bytes
#label/label.c:189       /dev/sdc1: No label detected
#device/dev-io.c:625         Closed /dev/sdc1
#cache/lvmcache.c:1153       Scanned 7 device labels
#toollib.c:1944       Processing VG tristan ntPJjD-J0JN-BtxH-OF1A-zkaP-BLbh-k1vWLh
#misc/lvm-flock.c:202       Locking /run/lock/lvm/V_tristan RB
#misc/lvm-flock.c:100         _do_flock /run/lock/lvm/V_tristan:aux WB
#misc/lvm-flock.c:47         _undo_flock /run/lock/lvm/V_tristan:aux
#misc/lvm-flock.c:100         _do_flock /run/lock/lvm/V_tristan RB
#metadata/metadata.c:3806       Reading VG tristan ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLh
#label/label.c:286         Reading label from device /dev/sda5
#device/dev-io.c:570         Opened /dev/sda5 RO O_DIRECT
#device/dev-io.c:145         /dev/sda5: block size is 4096 bytes
#device/dev-io.c:156         /dev/sda5: physical block size is 4096 bytes
#label/label.c:167       /dev/sda5: lvm2 label detected at sector 1
#cache/lvmcache.c:1871         lvmcache /dev/sda5: now in VG #orphans_lvm2 (#orphans_lvm2) with 1 mda(s).
#format_text/text_label.c:422         /dev/sda5: PV header extension version 2 found
#format_text/format-text.c:1260         /dev/sda5: Using cached metadata at 174080 size 3722 (in area at 4096 size 1044480) for tristan (ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLh)
#cache/lvmcache.c:1871         lvmcache /dev/sda5: now in VG tristan (ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLh) with 1 mda(s).
#label/label.c:286         Reading label from device /dev/sdb5
#device/dev-io.c:570         Opened /dev/sdb5 RO O_DIRECT
#device/dev-io.c:145         /dev/sdb5: block size is 4096 bytes
#device/dev-io.c:156         /dev/sdb5: physical block size is 4096 bytes
#label/label.c:167       /dev/sdb5: lvm2 label detected at sector 1
#cache/lvmcache.c:1871         lvmcache /dev/sdb5: now in VG #orphans_lvm2 (#orphans_lvm2) with 1 mda(s).
#format_text/text_label.c:422         /dev/sdb5: PV header extension version 2 found
#format_text/format-text.c:1260         /dev/sdb5: Using cached metadata at 134144 size 3722 (in area at 4096 size 1044480) for tristan (ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLh)
#cache/lvmcache.c:1871         lvmcache /dev/sdb5: now in VG tristan (ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLh) with 1 mda(s).
#metadata/vg.c:74         Allocated VG tristan at 0x55fd59b4c8d0.
#label/label.c:281         Reading label from lvmcache for /dev/sda5
#label/label.c:281         Reading label from lvmcache for /dev/sdb5
#format_text/import_vsn1.c:597         Importing logical volume tristan/root.
#format_text/import_vsn1.c:597         Importing logical volume tristan/swap_1.
#format_text/import_vsn1.c:597         Importing logical volume tristan/tristan-home.
#format_text/import_vsn1.c:597         Importing logical volume tristan/root_mimage_0.
#format_text/import_vsn1.c:597         Importing logical volume tristan/root_mimage_1.
#format_text/import_vsn1.c:597         Importing logical volume tristan/root_mlog.
#format_text/import_vsn1.c:597         Importing logical volume tristan/root_mlog_mimage_0.
#format_text/import_vsn1.c:597         Importing logical volume tristan/root_mlog_mimage_1.
#metadata/lv_manip.c:1189       Stack tristan/root:0[0] on LV tristan/root_mimage_0:0.
#metadata/lv_manip.c:746       Adding tristan/root:0 as an user of tristan/root_mimage_0.
#metadata/lv_manip.c:1189       Stack tristan/root:0[1] on LV tristan/root_mimage_1:0.
#metadata/lv_manip.c:746       Adding tristan/root:0 as an user of tristan/root_mimage_1.
#metadata/lv_manip.c:1189       Stack tristan/root_mlog:0[0] on LV tristan/root_mlog_mimage_0:0.
#metadata/lv_manip.c:746       Adding tristan/root_mlog:0 as an user of tristan/root_mlog_mimage_0.
#metadata/lv_manip.c:1189       Stack tristan/root_mlog:0[1] on LV tristan/root_mlog_mimage_1:0.
#metadata/lv_manip.c:746       Adding tristan/root_mlog:0 as an user of tristan/root_mlog_mimage_1.
#metadata/lv_manip.c:746       Adding tristan/root:0 as an user of tristan/root_mlog.
#format_text/format-text.c:558         Read tristan metadata (40) from /dev/sda5 at 174080 size 3722
#format_text/format-text.c:563         Skipped reading metadata from /dev/sdb5 at 134144 size 3722 with matching checksum.
#metadata/metadata.c:4042         Cached VG tristan had incorrect PV list
#metadata/vg.c:89         Freeing VG tristan at 0x55fd59b4c8d0.
#libdm-config.c:1061       Setting devices/sysfs_scan to 1
#filters/filter-sysfs.c:327         Sysfs filter initialised.
#filters/filter-internal.c:77         internal filter initialised.
#filters/filter-type.c:56         LVM type filter initialised.
#filters/filter-usable.c:192         Usable device filter initialised.
#libdm-config.c:1061       Setting devices/multipath_component_detection to 1
#filters/filter-mpath.c:291         mpath filter initialised.
#filters/filter-partitioned.c:59         Partitioned filter initialised.
#libdm-config.c:1061       Setting devices/md_component_detection to 1
#filters/filter-md.c:73         MD filter initialised.
#libdm-config.c:1061       Setting devices/fw_raid_component_detection to 0
#filters/filter-composite.c:104         Composite filter initialised.
#libdm-config.c:1061       Setting devices/ignore_suspended_devices to 0
#libdm-config.c:1061       Setting devices/ignore_lvm_mirrors to 1
#libdm-config.c:966       Setting devices/cache_dir to /run/lvm
#libdm-config.c:966       Setting devices/cache_file_prefix to
#libdm-config.c:975       devices/cache not found in config: defaulting to /run/lvm/.cache
#filters/filter-persistent.c:368         Persistent filter initialised.
#libdm-config.c:1061       Setting devices/write_cache_state to 1
#libdm-config.c:1061       Setting global/use_lvmetad to 0
#filters/filter-persistent.c:51     Wiping cache of LVM-capable devices
#device/dev-cache.c:352         /dev/block/11:0: Aliased to /dev/sr0 in device cache (11:0)
#device/dev-cache.c:711         Path already cached /dev/block/253:0.
#device/dev-cache.c:711         Path already cached /dev/block/253:1.
#device/dev-cache.c:352         /dev/block/7:0: Aliased to /dev/loop0 in device cache (7:0)
#device/dev-cache.c:352         /dev/block/7:1: Aliased to /dev/loop1 in device cache (7:1)
#device/dev-cache.c:352         /dev/block/7:2: Aliased to /dev/loop2 in device cache (7:2)
#device/dev-cache.c:352         /dev/block/7:3: Aliased to /dev/loop3 in device cache (7:3)
#device/dev-cache.c:352         /dev/block/7:4: Aliased to /dev/loop4 in device cache (7:4)
#device/dev-cache.c:352         /dev/block/7:5: Aliased to /dev/loop5 in device cache (7:5)
#device/dev-cache.c:352         /dev/block/7:6: Aliased to /dev/loop6 in device cache (7:6)
#device/dev-cache.c:352         /dev/block/7:7: Aliased to /dev/loop7 in device cache (7:7)
#device/dev-cache.c:352         /dev/block/8:0: Aliased to /dev/sda in device cache (8:0)
#device/dev-cache.c:711         Path already cached /dev/block/8:1.
#device/dev-cache.c:352         /dev/block/8:16: Aliased to /dev/sdb in device cache (8:16)
#device/dev-cache.c:711         Path already cached /dev/block/8:17.
#device/dev-cache.c:352         /dev/block/8:18: Aliased to /dev/sdb2 in device cache (8:18)
#device/dev-cache.c:352         /dev/block/8:2: Aliased to /dev/sda2 in device cache (8:2)
#device/dev-cache.c:711         Path already cached /dev/block/8:21.
#device/dev-cache.c:352         /dev/block/8:32: Aliased to /dev/sdc in device cache (8:32)
#device/dev-cache.c:711         Path already cached /dev/block/8:33.
#device/dev-cache.c:711         Path already cached /dev/block/8:5.
#device/dev-cache.c:1071         /dev/bsg/0:0:0:0: Not a block device
#device/dev-cache.c:1071         /dev/bsg/1:0:0:0: Not a block device
#device/dev-cache.c:1071         /dev/bsg/2:0:0:0: Not a block device
#device/dev-cache.c:1071         /dev/bsg/3:0:0:0: Not a block device
#device/dev-cache.c:1071         /dev/btrfs-control: Not a block device
#device/dev-cache.c:1071         /dev/bus/usb/001/001: Not a block device
#device/dev-cache.c:1071         /dev/bus/usb/001/002: Not a block device
#device/dev-cache.c:1071         /dev/bus/usb/002/001: Not a block device
#device/dev-cache.c:1071         /dev/bus/usb/002/002: Not a block device
#device/dev-cache.c:1071         /dev/bus/usb/002/003: Not a block device
#device/dev-cache.c:1071         /dev/bus/usb/002/004: Not a block device
#device/dev-cache.c:1071         /dev/bus/usb/002/005: Not a block device
#device/dev-cache.c:352         /dev/cdrom: Aliased to /dev/sr0 in device cache (preferred name) (11:0)
#device/dev-cache.c:1071         /dev/char/108:0: Not a block device
#device/dev-cache.c:1071         /dev/char/10:1: Not a block device
#device/dev-cache.c:1071         /dev/char/10:183: Not a block device
#device/dev-cache.c:1071         /dev/char/10:184: Not a block device
#device/dev-cache.c:1071         /dev/char/10:200: Not a block device
#device/dev-cache.c:1071         /dev/char/10:223: Not a block device
#device/dev-cache.c:1071         /dev/char/10:227: Not a block device
#device/dev-cache.c:1071         /dev/char/10:228: Not a block device
#device/dev-cache.c:1071         /dev/char/10:229: Not a block device
#device/dev-cache.c:1071         /dev/char/10:231: Not a block device
#device/dev-cache.c:1071         /dev/char/10:234: Not a block device
#device/dev-cache.c:1071         /dev/char/10:236: Not a block device
#device/dev-cache.c:1071         /dev/char/10:237: Not a block device
#device/dev-cache.c:1071         /dev/char/10:56: Not a block device
#device/dev-cache.c:1071         /dev/char/10:57: Not a block device
#device/dev-cache.c:1071         /dev/char/10:58: Not a block device
#device/dev-cache.c:1071         /dev/char/10:59: Not a block device
#device/dev-cache.c:1071         /dev/char/10:60: Not a block device
#device/dev-cache.c:1071         /dev/char/10:61: Not a block device
#device/dev-cache.c:1071         /dev/char/10:62: Not a block device
#device/dev-cache.c:1071         /dev/char/10:63: Not a block device
#device/dev-cache.c:1071         /dev/char/13:32: Not a block device
#device/dev-cache.c:1071         /dev/char/13:33: Not a block device
#device/dev-cache.c:1071         /dev/char/13:63: Not a block device
#device/dev-cache.c:1071         /dev/char/13:64: Not a block device
#device/dev-cache.c:1071         /dev/char/13:65: Not a block device
#device/dev-cache.c:1071         /dev/char/13:66: Not a block device
#device/dev-cache.c:1071         /dev/char/13:67: Not a block device
#device/dev-cache.c:1071         /dev/char/13:68: Not a block device
#device/dev-cache.c:1071         /dev/char/13:69: Not a block device
#device/dev-cache.c:1071         /dev/char/13:70: Not a block device
#device/dev-cache.c:1071         /dev/char/180:0: Not a block device
#device/dev-cache.c:1071         /dev/char/189:0: Not a block device
#device/dev-cache.c:1071         /dev/char/189:1: Not a block device
#device/dev-cache.c:1071         /dev/char/189:128: Not a block device
#device/dev-cache.c:1071         /dev/char/189:129: Not a block device
#device/dev-cache.c:1071         /dev/char/189:130: Not a block device
#device/dev-cache.c:1071         /dev/char/189:131: Not a block device
#device/dev-cache.c:1071         /dev/char/189:132: Not a block device
#device/dev-cache.c:1071         /dev/char/1:1: Not a block device
#device/dev-cache.c:1071         /dev/char/1:11: Not a block device
#device/dev-cache.c:1071         /dev/char/1:3: Not a block device
#device/dev-cache.c:1071         /dev/char/1:4: Not a block device
#device/dev-cache.c:1071         /dev/char/1:5: Not a block device
#device/dev-cache.c:1071         /dev/char/1:7: Not a block device
#device/dev-cache.c:1071         /dev/char/1:8: Not a block device
#device/dev-cache.c:1071         /dev/char/1:9: Not a block device
#device/dev-cache.c:1071         /dev/char/21:0: Not a block device
#device/dev-cache.c:1071         /dev/char/21:1: Not a block device
#device/dev-cache.c:1071         /dev/char/21:2: Not a block device
#device/dev-cache.c:1071         /dev/char/21:3: Not a block device
#device/dev-cache.c:1071         /dev/char/243:0: Not a block device
#device/dev-cache.c:1071         /dev/char/243:1: Not a block device
#device/dev-cache.c:1071         /dev/char/243:2: Not a block device
#device/dev-cache.c:1071         /dev/char/243:3: Not a block device
#device/dev-cache.c:1071         /dev/char/244:0: Not a block device
#device/dev-cache.c:1071         /dev/char/244:1: Not a block device
#device/dev-cache.c:1071         /dev/char/246:0: Not a block device
#device/dev-cache.c:1071         /dev/char/246:1: Not a block device
#device/dev-cache.c:1071         /dev/char/246:2: Not a block device
#device/dev-cache.c:1071         /dev/char/246:3: Not a block device
#device/dev-cache.c:1071         /dev/char/249:0: Not a block device
#device/dev-cache.c:1071         /dev/char/29:0: Not a block device
#device/dev-cache.c:1071         /dev/char/4:0: Not a block device
#device/dev-cache.c:1071         /dev/char/4:1: Not a block device
#device/dev-cache.c:1071         /dev/char/4:10: Not a block device
#device/dev-cache.c:1071         /dev/char/4:11: Not a block device
#device/dev-cache.c:1071         /dev/char/4:12: Not a block device
#device/dev-cache.c:1071         /dev/char/4:13: Not a block device
#device/dev-cache.c:1071         /dev/char/4:14: Not a block device
#device/dev-cache.c:1071         /dev/char/4:15: Not a block device
#device/dev-cache.c:1071         /dev/char/4:16: Not a block device
#device/dev-cache.c:1071         /dev/char/4:17: Not a block device
#device/dev-cache.c:1071         /dev/char/4:18: Not a block device
#device/dev-cache.c:1071         /dev/char/4:19: Not a block device
#device/dev-cache.c:1071         /dev/char/4:2: Not a block device
#device/dev-cache.c:1071         /dev/char/4:20: Not a block device
#device/dev-cache.c:1071         /dev/char/4:21: Not a block device
#device/dev-cache.c:1071         /dev/char/4:22: Not a block device
#device/dev-cache.c:1071         /dev/char/4:23: Not a block device
#device/dev-cache.c:1071         /dev/char/4:24: Not a block device
#device/dev-cache.c:1071         /dev/char/4:25: Not a block device
#device/dev-cache.c:1071         /dev/char/4:26: Not a block device
#device/dev-cache.c:1071         /dev/char/4:27: Not a block device
#device/dev-cache.c:1071         /dev/char/4:28: Not a block device
#device/dev-cache.c:1071         /dev/char/4:29: Not a block device
#device/dev-cache.c:1071         /dev/char/4:3: Not a block device
#device/dev-cache.c:1071         /dev/char/4:30: Not a block device
#device/dev-cache.c:1071         /dev/char/4:31: Not a block device
#device/dev-cache.c:1071         /dev/char/4:32: Not a block device
#device/dev-cache.c:1071         /dev/char/4:33: Not a block device
#device/dev-cache.c:1071         /dev/char/4:34: Not a block device
#device/dev-cache.c:1071         /dev/char/4:35: Not a block device
#device/dev-cache.c:1071         /dev/char/4:36: Not a block device
#device/dev-cache.c:1071         /dev/char/4:37: Not a block device
#device/dev-cache.c:1071         /dev/char/4:38: Not a block device
#device/dev-cache.c:1071         /dev/char/4:39: Not a block device
#device/dev-cache.c:1071         /dev/char/4:4: Not a block device
#device/dev-cache.c:1071         /dev/char/4:40: Not a block device
#device/dev-cache.c:1071         /dev/char/4:41: Not a block device
#device/dev-cache.c:1071         /dev/char/4:42: Not a block device
#device/dev-cache.c:1071         /dev/char/4:43: Not a block device
#device/dev-cache.c:1071         /dev/char/4:44: Not a block device
#device/dev-cache.c:1071         /dev/char/4:45: Not a block device
#device/dev-cache.c:1071         /dev/char/4:46: Not a block device
#device/dev-cache.c:1071         /dev/char/4:47: Not a block device
#device/dev-cache.c:1071         /dev/char/4:48: Not a block device
#device/dev-cache.c:1071         /dev/char/4:49: Not a block device
#device/dev-cache.c:1071         /dev/char/4:5: Not a block device
#device/dev-cache.c:1071         /dev/char/4:50: Not a block device
#device/dev-cache.c:1071         /dev/char/4:51: Not a block device
#device/dev-cache.c:1071         /dev/char/4:52: Not a block device
#device/dev-cache.c:1071         /dev/char/4:53: Not a block device
#device/dev-cache.c:1071         /dev/char/4:54: Not a block device
#device/dev-cache.c:1071         /dev/char/4:55: Not a block device
#device/dev-cache.c:1071         /dev/char/4:56: Not a block device
#device/dev-cache.c:1071         /dev/char/4:57: Not a block device
#device/dev-cache.c:1071         /dev/char/4:58: Not a block device
#device/dev-cache.c:1071         /dev/char/4:59: Not a block device
#device/dev-cache.c:1071         /dev/char/4:6: Not a block device
#device/dev-cache.c:1071         /dev/char/4:60: Not a block device
#device/dev-cache.c:1071         /dev/char/4:61: Not a block device
#device/dev-cache.c:1071         /dev/char/4:62: Not a block device
#device/dev-cache.c:1071         /dev/char/4:63: Not a block device
#device/dev-cache.c:1071         /dev/char/4:64: Not a block device
#device/dev-cache.c:1071         /dev/char/4:65: Not a block device
#device/dev-cache.c:1071         /dev/char/4:66: Not a block device
#device/dev-cache.c:1071         /dev/char/4:67: Not a block device
#device/dev-cache.c:1071         /dev/char/4:68: Not a block device
#device/dev-cache.c:1071         /dev/char/4:69: Not a block device
#device/dev-cache.c:1071         /dev/char/4:7: Not a block device
#device/dev-cache.c:1071         /dev/char/4:70: Not a block device
#device/dev-cache.c:1071         /dev/char/4:71: Not a block device
#device/dev-cache.c:1071         /dev/char/4:72: Not a block device
#device/dev-cache.c:1071         /dev/char/4:73: Not a block device
#device/dev-cache.c:1071         /dev/char/4:74: Not a block device
#device/dev-cache.c:1071         /dev/char/4:75: Not a block device
#device/dev-cache.c:1071         /dev/char/4:76: Not a block device
#device/dev-cache.c:1071         /dev/char/4:77: Not a block device
#device/dev-cache.c:1071         /dev/char/4:78: Not a block device
#device/dev-cache.c:1071         /dev/char/4:79: Not a block device
#device/dev-cache.c:1071         /dev/char/4:8: Not a block device
#device/dev-cache.c:1071         /dev/char/4:80: Not a block device
#device/dev-cache.c:1071         /dev/char/4:81: Not a block device
#device/dev-cache.c:1071         /dev/char/4:82: Not a block device
#device/dev-cache.c:1071         /dev/char/4:83: Not a block device
#device/dev-cache.c:1071         /dev/char/4:84: Not a block device
#device/dev-cache.c:1071         /dev/char/4:85: Not a block device
#device/dev-cache.c:1071         /dev/char/4:86: Not a block device
#device/dev-cache.c:1071         /dev/char/4:87: Not a block device
#device/dev-cache.c:1071         /dev/char/4:88: Not a block device
#device/dev-cache.c:1071         /dev/char/4:89: Not a block device
#device/dev-cache.c:1071         /dev/char/4:9: Not a block device
#device/dev-cache.c:1071         /dev/char/4:90: Not a block device
#device/dev-cache.c:1071         /dev/char/4:91: Not a block device
#device/dev-cache.c:1071         /dev/char/4:92: Not a block device
#device/dev-cache.c:1071         /dev/char/4:93: Not a block device
#device/dev-cache.c:1071         /dev/char/4:94: Not a block device
#device/dev-cache.c:1071         /dev/char/4:95: Not a block device
#device/dev-cache.c:1071         /dev/char/5:0: Not a block device
#device/dev-cache.c:1071         /dev/char/5:1: Not a block device
#device/dev-cache.c:1071         /dev/char/5:2: Not a block device
#device/dev-cache.c:1071         /dev/char/5:3: Not a block device
#device/dev-cache.c:1071         /dev/char/7:0: Not a block device
#device/dev-cache.c:1071         /dev/char/7:1: Not a block device
#device/dev-cache.c:1071         /dev/char/7:128: Not a block device
#device/dev-cache.c:1071         /dev/char/7:129: Not a block device
#device/dev-cache.c:1071         /dev/char/7:130: Not a block device
#device/dev-cache.c:1071         /dev/char/7:131: Not a block device
#device/dev-cache.c:1071         /dev/char/7:132: Not a block device
#device/dev-cache.c:1071         /dev/char/7:133: Not a block device
#device/dev-cache.c:1071         /dev/char/7:134: Not a block device
#device/dev-cache.c:1071         /dev/char/7:2: Not a block device
#device/dev-cache.c:1071         /dev/char/7:3: Not a block device
#device/dev-cache.c:1071         /dev/char/7:4: Not a block device
#device/dev-cache.c:1071         /dev/char/7:5: Not a block device
#device/dev-cache.c:1071         /dev/char/7:6: Not a block device
#device/dev-cache.c:1071         /dev/console: Not a block device
#device/dev-cache.c:1071         /dev/core: Not a block device
#device/dev-cache.c:1071         /dev/cpu/microcode: Not a block device
#device/dev-cache.c:1071         /dev/cpu_dma_latency: Not a block device
#device/dev-cache.c:352         /dev/disk/by-id/ata-ST2000DM001-9YN164_W1E1W2EQ: Aliased to /dev/sdb in device cache (8:16)
#device/dev-cache.c:711         Path already cached /dev/disk/by-id/ata-ST2000DM001-9YN164_W1E1W2EQ-part1.
#device/dev-cache.c:352         /dev/disk/by-id/ata-ST2000DM001-9YN164_W1E1W2EQ-part2: Aliased to /dev/sdb2 in device cache (8:18)
#device/dev-cache.c:711         Path already cached /dev/disk/by-id/ata-ST2000DM001-9YN164_W1E1W2EQ-part5.
#device/dev-cache.c:352         /dev/disk/by-id/ata-SanDisk_SSD_PLUS_1000GB_190529800916: Aliased to /dev/sdc in device cache (8:32)
#device/dev-cache.c:711         Path already cached /dev/disk/by-id/ata-SanDisk_SSD_PLUS_1000GB_190529800916-part1.
#device/dev-cache.c:352         /dev/disk/by-id/ata-TSSTcorp_CDDVDW_SH-224BB_R8WS68DC901P49: Aliased to /dev/cdrom in device cache (11:0)
#device/dev-cache.c:352         /dev/disk/by-id/ata-WDC_WD20EARX-00PASB0_WD-WCAZAH581091: Aliased to /dev/sda in device cache (8:0)
#device/dev-cache.c:711         Path already cached /dev/disk/by-id/ata-WDC_WD20EARX-00PASB0_WD-WCAZAH581091-part1.
#device/dev-cache.c:352         /dev/disk/by-id/ata-WDC_WD20EARX-00PASB0_WD-WCAZAH581091-part2: Aliased to /dev/sda2 in device cache (8:2)
#device/dev-cache.c:711         Path already cached /dev/disk/by-id/ata-WDC_WD20EARX-00PASB0_WD-WCAZAH581091-part5.
#device/dev-cache.c:711         Path already cached /dev/disk/by-id/dm-name-tristan-swap_1.
#device/dev-cache.c:711         Path already cached /dev/disk/by-id/dm-name-tristan-tristan--home.
#device/dev-cache.c:711         Path already cached /dev/disk/by-id/dm-uuid-LVM-ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLhKEuNaNIShSER5P7fTiIwD4mHeXaqS3WL.
#device/dev-cache.c:711         Path already cached /dev/disk/by-id/dm-uuid-LVM-ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLhav1jII4xV0UmBevpRG143ysUhsLY2ley.
#device/dev-cache.c:352         /dev/disk/by-id/wwn-0x5000c5005b410358: Aliased to /dev/sdb in device cache (8:16)
#device/dev-cache.c:711         Path already cached /dev/disk/by-id/wwn-0x5000c5005b410358-part1.
#device/dev-cache.c:352         /dev/disk/by-id/wwn-0x5000c5005b410358-part2: Aliased to /dev/sdb2 in device cache (8:18)
#device/dev-cache.c:711         Path already cached /dev/disk/by-id/wwn-0x5000c5005b410358-part5.
#device/dev-cache.c:352         /dev/disk/by-id/wwn-0x50014ee2b211ce48: Aliased to /dev/sda in device cache (8:0)
#device/dev-cache.c:711         Path already cached /dev/disk/by-id/wwn-0x50014ee2b211ce48-part1.
#device/dev-cache.c:352         /dev/disk/by-id/wwn-0x50014ee2b211ce48-part2: Aliased to /dev/sda2 in device cache (8:2)
#device/dev-cache.c:711         Path already cached /dev/disk/by-id/wwn-0x50014ee2b211ce48-part5.
#device/dev-cache.c:352         /dev/disk/by-id/wwn-0x5001b448b92dd659: Aliased to /dev/sdc in device cache (8:32)
#device/dev-cache.c:711         Path already cached /dev/disk/by-id/wwn-0x5001b448b92dd659-part1.
#device/dev-cache.c:352         /dev/disk/by-label/CDROM: Aliased to /dev/cdrom in device cache (11:0)
#device/dev-cache.c:711         Path already cached /dev/disk/by-label/tristan-home.
#device/dev-cache.c:711         Path already cached /dev/disk/by-partuuid/000026c1-01.
#device/dev-cache.c:352         /dev/disk/by-partuuid/000026c1-02: Aliased to /dev/sda2 in device cache (8:2)
#device/dev-cache.c:711         Path already cached /dev/disk/by-partuuid/000026c1-05.
#device/dev-cache.c:711         Path already cached /dev/disk/by-partuuid/56312451-01.
#device/dev-cache.c:352         /dev/disk/by-path/pci-0000:00:1f.2-ata-1: Aliased to /dev/sda in device cache (8:0)
#device/dev-cache.c:711         Path already cached /dev/disk/by-path/pci-0000:00:1f.2-ata-1-part1.
#device/dev-cache.c:352         /dev/disk/by-path/pci-0000:00:1f.2-ata-1-part2: Aliased to /dev/sda2 in device cache (8:2)
#device/dev-cache.c:711         Path already cached /dev/disk/by-path/pci-0000:00:1f.2-ata-1-part5.
#device/dev-cache.c:352         /dev/disk/by-path/pci-0000:00:1f.2-ata-2: Aliased to /dev/sdb in device cache (8:16)
#device/dev-cache.c:711         Path already cached /dev/disk/by-path/pci-0000:00:1f.2-ata-2-part1.
#device/dev-cache.c:352         /dev/disk/by-path/pci-0000:00:1f.2-ata-2-part2: Aliased to /dev/sdb2 in device cache (8:18)
#device/dev-cache.c:711         Path already cached /dev/disk/by-path/pci-0000:00:1f.2-ata-2-part5.
#device/dev-cache.c:352         /dev/disk/by-path/pci-0000:00:1f.2-ata-3: Aliased to /dev/cdrom in device cache (11:0)
#device/dev-cache.c:352         /dev/disk/by-path/pci-0000:00:1f.2-ata-4: Aliased to /dev/sdc in device cache (8:32)
#device/dev-cache.c:711         Path already cached /dev/disk/by-path/pci-0000:00:1f.2-ata-4-part1.
#device/dev-cache.c:711         Path already cached /dev/disk/by-uuid/0dcd8225-0c85-49d7-8df7-c5298478587f.
#device/dev-cache.c:352         /dev/disk/by-uuid/2018-04-25-20-11-06-00: Aliased to /dev/cdrom in device cache (11:0)
#device/dev-cache.c:711         Path already cached /dev/disk/by-uuid/26aeef9d-738d-42b8-9f97-0d26e9744a16.
#device/dev-cache.c:711         Path already cached /dev/disk/by-uuid/82653bb1-b4a8-4fc8-968a-f7d890794775.
#device/dev-cache.c:711         Path already cached /dev/disk/by-uuid/fbd197ee-5a8d-44c1-9fbf-1821ab8962d9.
#device/dev-cache.c:711         Path already cached /dev/dm-0.
#device/dev-cache.c:711         Path already cached /dev/dm-1.
#device/dev-cache.c:1071         /dev/ecryptfs: Not a block device
#device/dev-cache.c:1071         /dev/fb0: Not a block device
#device/dev-cache.c:1063         /dev/fd: Symbolic link to directory
#device/dev-cache.c:1071         /dev/full: Not a block device
#device/dev-cache.c:1071         /dev/fuse: Not a block device
#device/dev-cache.c:1071         /dev/hidraw0: Not a block device
#device/dev-cache.c:1071         /dev/hidraw1: Not a block device
#device/dev-cache.c:1071         /dev/hidraw2: Not a block device
#device/dev-cache.c:1071         /dev/hidraw3: Not a block device
#device/dev-cache.c:1071         /dev/hpet: Not a block device
#device/dev-cache.c:1071         /dev/hwrng: Not a block device
#device/dev-cache.c:1071         /dev/input/by-id/usb-Logitech_Logitech_USB_Keyboard-event-kbd: Not a block device
#device/dev-cache.c:1071         /dev/input/by-id/usb-Logitech_Logitech_USB_Keyboard-if01-event-joystick: Not a block device
#device/dev-cache.c:1071         /dev/input/by-id/usb-Logitech_Logitech_USB_Keyboard-if01-joystick: Not a block device
#device/dev-cache.c:1071         /dev/input/by-id/usb-SINOWEALTH_Game_Mouse-event-mouse: Not a block device
#device/dev-cache.c:1071         /dev/input/by-id/usb-SINOWEALTH_Game_Mouse-if01-event-kbd: Not a block device
#device/dev-cache.c:1071         /dev/input/by-id/usb-SINOWEALTH_Game_Mouse-mouse: Not a block device
#device/dev-cache.c:1071         /dev/input/by-path/pci-0000:00:1d.0-usb-0:1.3:1.0-event-mouse: Not a block device
#device/dev-cache.c:1071         /dev/input/by-path/pci-0000:00:1d.0-usb-0:1.3:1.0-mouse: Not a block device
#device/dev-cache.c:1071         /dev/input/by-path/pci-0000:00:1d.0-usb-0:1.3:1.1-event-kbd: Not a block device
#device/dev-cache.c:1071         /dev/input/by-path/pci-0000:00:1d.0-usb-0:1.4:1.0-event-kbd: Not a block device
#device/dev-cache.c:1071         /dev/input/by-path/pci-0000:00:1d.0-usb-0:1.4:1.1-event-joystick: Not a block device
#device/dev-cache.c:1071         /dev/input/by-path/pci-0000:00:1d.0-usb-0:1.4:1.1-joystick: Not a block device
#device/dev-cache.c:1071         /dev/input/by-path/platform-i8042-serio-1-event-kbd: Not a block device
#device/dev-cache.c:1071         /dev/input/event0: Not a block device
#device/dev-cache.c:1071         /dev/input/event1: Not a block device
#device/dev-cache.c:1071         /dev/input/event2: Not a block device
#device/dev-cache.c:1071         /dev/input/event3: Not a block device
#device/dev-cache.c:1071         /dev/input/event4: Not a block device
#device/dev-cache.c:1071         /dev/input/event5: Not a block device
#device/dev-cache.c:1071         /dev/input/event6: Not a block device
#device/dev-cache.c:1071         /dev/input/mice: Not a block device
#device/dev-cache.c:1071         /dev/input/mouse0: Not a block device
#device/dev-cache.c:1071         /dev/input/mouse1: Not a block device
#device/dev-cache.c:1071         /dev/kmsg: Not a block device
#device/dev-cache.c:1071         /dev/lightnvm/control: Not a block device
#device/dev-cache.c:1071         /dev/log: Not a block device
#device/dev-cache.c:1071         /dev/loop-control: Not a block device
#device/dev-cache.c:340         /dev/loop0: Already in device cache
#device/dev-cache.c:340         /dev/loop1: Already in device cache
#device/dev-cache.c:340         /dev/loop2: Already in device cache
#device/dev-cache.c:340         /dev/loop3: Already in device cache
#device/dev-cache.c:340         /dev/loop4: Already in device cache
#device/dev-cache.c:340         /dev/loop5: Already in device cache
#device/dev-cache.c:340         /dev/loop6: Already in device cache
#device/dev-cache.c:340         /dev/loop7: Already in device cache
#device/dev-cache.c:1071         /dev/mapper/control: Not a block device
#device/dev-cache.c:711         Path already cached /dev/mapper/tristan-swap_1.
#device/dev-cache.c:711         Path already cached /dev/mapper/tristan-tristan--home.
#device/dev-cache.c:1071         /dev/mcelog: Not a block device
#device/dev-cache.c:1071         /dev/mem: Not a block device
#device/dev-cache.c:1071         /dev/memory_bandwidth: Not a block device
#device/dev-cache.c:1071         /dev/net/tun: Not a block device
#device/dev-cache.c:1071         /dev/network_latency: Not a block device
#device/dev-cache.c:1071         /dev/network_throughput: Not a block device
#device/dev-cache.c:1071         /dev/null: Not a block device
#device/dev-cache.c:1071         /dev/port: Not a block device
#device/dev-cache.c:1071         /dev/ppp: Not a block device
#device/dev-cache.c:1071         /dev/psaux: Not a block device
#device/dev-cache.c:1071         /dev/ptmx: Not a block device
#device/dev-cache.c:1071         /dev/ptp0: Not a block device
#device/dev-cache.c:1071         /dev/ptp1: Not a block device
#device/dev-cache.c:1071         /dev/pts/0: Not a block device
#device/dev-cache.c:1071         /dev/pts/ptmx: Not a block device
#device/dev-cache.c:1071         /dev/random: Not a block device
#device/dev-cache.c:1071         /dev/rfkill: Not a block device
#device/dev-cache.c:1071         /dev/rtc: Not a block device
#device/dev-cache.c:1071         /dev/rtc0: Not a block device
#device/dev-cache.c:340         /dev/sda: Already in device cache
#device/dev-cache.c:711         Path already cached /dev/sda1.
#device/dev-cache.c:340         /dev/sda2: Already in device cache
#device/dev-cache.c:711         Path already cached /dev/sda5.
#device/dev-cache.c:340         /dev/sdb: Already in device cache
#device/dev-cache.c:711         Path already cached /dev/sdb1.
#device/dev-cache.c:340         /dev/sdb2: Already in device cache
#device/dev-cache.c:711         Path already cached /dev/sdb5.
#device/dev-cache.c:340         /dev/sdc: Already in device cache
#device/dev-cache.c:711         Path already cached /dev/sdc1.
#device/dev-cache.c:1071         /dev/sg0: Not a block device
#device/dev-cache.c:1071         /dev/sg1: Not a block device
#device/dev-cache.c:1071         /dev/sg2: Not a block device
#device/dev-cache.c:1071         /dev/sg3: Not a block device
#device/dev-cache.c:1071         /dev/snapshot: Not a block device
#device/dev-cache.c:340         /dev/sr0: Already in device cache
#device/dev-cache.c:1071         /dev/stderr: Not a block device
#device/dev-cache.c:1071         /dev/stdin: Not a block device
#device/dev-cache.c:1071         /dev/stdout: Not a block device
#device/dev-cache.c:711         Path already cached /dev/tristan/swap_1.
#device/dev-cache.c:711         Path already cached /dev/tristan/tristan-home.
#device/dev-cache.c:1071         /dev/tty: Not a block device
#device/dev-cache.c:1071         /dev/tty0: Not a block device
#device/dev-cache.c:1071         /dev/tty1: Not a block device
#device/dev-cache.c:1071         /dev/tty10: Not a block device
#device/dev-cache.c:1071         /dev/tty11: Not a block device
#device/dev-cache.c:1071         /dev/tty12: Not a block device
#device/dev-cache.c:1071         /dev/tty13: Not a block device
#device/dev-cache.c:1071         /dev/tty14: Not a block device
#device/dev-cache.c:1071         /dev/tty15: Not a block device
#device/dev-cache.c:1071         /dev/tty16: Not a block device
#device/dev-cache.c:1071         /dev/tty17: Not a block device
#device/dev-cache.c:1071         /dev/tty18: Not a block device
#device/dev-cache.c:1071         /dev/tty19: Not a block device
#device/dev-cache.c:1071         /dev/tty2: Not a block device
#device/dev-cache.c:1071         /dev/tty20: Not a block device
#device/dev-cache.c:1071         /dev/tty21: Not a block device
#device/dev-cache.c:1071         /dev/tty22: Not a block device
#device/dev-cache.c:1071         /dev/tty23: Not a block device
#device/dev-cache.c:1071         /dev/tty24: Not a block device
#device/dev-cache.c:1071         /dev/tty25: Not a block device
#device/dev-cache.c:1071         /dev/tty26: Not a block device
#device/dev-cache.c:1071         /dev/tty27: Not a block device
#device/dev-cache.c:1071         /dev/tty28: Not a block device
#device/dev-cache.c:1071         /dev/tty29: Not a block device
#device/dev-cache.c:1071         /dev/tty3: Not a block device
#device/dev-cache.c:1071         /dev/tty30: Not a block device
#device/dev-cache.c:1071         /dev/tty31: Not a block device
#device/dev-cache.c:1071         /dev/tty32: Not a block device
#device/dev-cache.c:1071         /dev/tty33: Not a block device
#device/dev-cache.c:1071         /dev/tty34: Not a block device
#device/dev-cache.c:1071         /dev/tty35: Not a block device
#device/dev-cache.c:1071         /dev/tty36: Not a block device
#device/dev-cache.c:1071         /dev/tty37: Not a block device
#device/dev-cache.c:1071         /dev/tty38: Not a block device
#device/dev-cache.c:1071         /dev/tty39: Not a block device
#device/dev-cache.c:1071         /dev/tty4: Not a block device
#device/dev-cache.c:1071         /dev/tty40: Not a block device
#device/dev-cache.c:1071         /dev/tty41: Not a block device
#device/dev-cache.c:1071         /dev/tty42: Not a block device
#device/dev-cache.c:1071         /dev/tty43: Not a block device
#device/dev-cache.c:1071         /dev/tty44: Not a block device
#device/dev-cache.c:1071         /dev/tty45: Not a block device
#device/dev-cache.c:1071         /dev/tty46: Not a block device
#device/dev-cache.c:1071         /dev/tty47: Not a block device
#device/dev-cache.c:1071         /dev/tty48: Not a block device
#device/dev-cache.c:1071         /dev/tty49: Not a block device
#device/dev-cache.c:1071         /dev/tty5: Not a block device
#device/dev-cache.c:1071         /dev/tty50: Not a block device
#device/dev-cache.c:1071         /dev/tty51: Not a block device
#device/dev-cache.c:1071         /dev/tty52: Not a block device
#device/dev-cache.c:1071         /dev/tty53: Not a block device
#device/dev-cache.c:1071         /dev/tty54: Not a block device
#device/dev-cache.c:1071         /dev/tty55: Not a block device
#device/dev-cache.c:1071         /dev/tty56: Not a block device
#device/dev-cache.c:1071         /dev/tty57: Not a block device
#device/dev-cache.c:1071         /dev/tty58: Not a block device
#device/dev-cache.c:1071         /dev/tty59: Not a block device
#device/dev-cache.c:1071         /dev/tty6: Not a block device
#device/dev-cache.c:1071         /dev/tty60: Not a block device
#device/dev-cache.c:1071         /dev/tty61: Not a block device
#device/dev-cache.c:1071         /dev/tty62: Not a block device
#device/dev-cache.c:1071         /dev/tty63: Not a block device
#device/dev-cache.c:1071         /dev/tty7: Not a block device
#device/dev-cache.c:1071         /dev/tty8: Not a block device
#device/dev-cache.c:1071         /dev/tty9: Not a block device
#device/dev-cache.c:1071         /dev/ttyS0: Not a block device
#device/dev-cache.c:1071         /dev/ttyS1: Not a block device
#device/dev-cache.c:1071         /dev/ttyS10: Not a block device
#device/dev-cache.c:1071         /dev/ttyS11: Not a block device
#device/dev-cache.c:1071         /dev/ttyS12: Not a block device
#device/dev-cache.c:1071         /dev/ttyS13: Not a block device
#device/dev-cache.c:1071         /dev/ttyS14: Not a block device
#device/dev-cache.c:1071         /dev/ttyS15: Not a block device
#device/dev-cache.c:1071         /dev/ttyS16: Not a block device
#device/dev-cache.c:1071         /dev/ttyS17: Not a block device
#device/dev-cache.c:1071         /dev/ttyS18: Not a block device
#device/dev-cache.c:1071         /dev/ttyS19: Not a block device
#device/dev-cache.c:1071         /dev/ttyS2: Not a block device
#device/dev-cache.c:1071         /dev/ttyS20: Not a block device
#device/dev-cache.c:1071         /dev/ttyS21: Not a block device
#device/dev-cache.c:1071         /dev/ttyS22: Not a block device
#device/dev-cache.c:1071         /dev/ttyS23: Not a block device
#device/dev-cache.c:1071         /dev/ttyS24: Not a block device
#device/dev-cache.c:1071         /dev/ttyS25: Not a block device
#device/dev-cache.c:1071         /dev/ttyS26: Not a block device
#device/dev-cache.c:1071         /dev/ttyS27: Not a block device
#device/dev-cache.c:1071         /dev/ttyS28: Not a block device
#device/dev-cache.c:1071         /dev/ttyS29: Not a block device
#device/dev-cache.c:1071         /dev/ttyS3: Not a block device
#device/dev-cache.c:1071         /dev/ttyS30: Not a block device
#device/dev-cache.c:1071         /dev/ttyS31: Not a block device
#device/dev-cache.c:1071         /dev/ttyS4: Not a block device
#device/dev-cache.c:1071         /dev/ttyS5: Not a block device
#device/dev-cache.c:1071         /dev/ttyS6: Not a block device
#device/dev-cache.c:1071         /dev/ttyS7: Not a block device
#device/dev-cache.c:1071         /dev/ttyS8: Not a block device
#device/dev-cache.c:1071         /dev/ttyS9: Not a block device
#device/dev-cache.c:1071         /dev/ttyprintk: Not a block device
#device/dev-cache.c:1071         /dev/uinput: Not a block device
#device/dev-cache.c:1071         /dev/urandom: Not a block device
#device/dev-cache.c:1071         /dev/usb/hiddev0: Not a block device
#device/dev-cache.c:1071         /dev/vcs: Not a block device
#device/dev-cache.c:1071         /dev/vcs1: Not a block device
#device/dev-cache.c:1071         /dev/vcs2: Not a block device
#device/dev-cache.c:1071         /dev/vcs3: Not a block device
#device/dev-cache.c:1071         /dev/vcs4: Not a block device
#device/dev-cache.c:1071         /dev/vcs5: Not a block device
#device/dev-cache.c:1071         /dev/vcs6: Not a block device
#device/dev-cache.c:1071         /dev/vcsa: Not a block device
#device/dev-cache.c:1071         /dev/vcsa1: Not a block device
#device/dev-cache.c:1071         /dev/vcsa2: Not a block device
#device/dev-cache.c:1071         /dev/vcsa3: Not a block device
#device/dev-cache.c:1071         /dev/vcsa4: Not a block device
#device/dev-cache.c:1071         /dev/vcsa5: Not a block device
#device/dev-cache.c:1071         /dev/vcsa6: Not a block device
#device/dev-cache.c:1071         /dev/vga_arbiter: Not a block device
#device/dev-cache.c:1071         /dev/zero: Not a block device
#cache/lvmcache.c:1139       Scanning device labels
#device/dev-io.c:570         Opened /dev/loop0 RO O_DIRECT
#device/dev-io.c:330       /dev/loop0: size is 0 sectors
#filters/filter-usable.c:44         /dev/loop0: Skipping: Too small to hold a PV
#device/dev-io.c:625         Closed /dev/loop0
#device/dev-io.c:570         Opened /dev/sda RO O_DIRECT
#device/dev-io.c:330       /dev/sda: size is 3907029168 sectors
#device/dev-io.c:625         Closed /dev/sda
#device/dev-io.c:570         Opened /dev/sda RO O_DIRECT
#device/dev-io.c:145         /dev/sda: block size is 4096 bytes
#device/dev-io.c:156         /dev/sda: physical block size is 4096 bytes
#device/dev-io.c:625         Closed /dev/sda
#filters/filter-partitioned.c:27         /dev/sda: Skipping: Partition table signature found
#filters/filter-type.c:27         /dev/cdrom: Skipping: Unrecognised LVM device type 11
#ioctl/libdm-iface.c:1848         dm status   (253:0) [ noopencount noflush ]   [16384] (*1)
#device/dev-io.c:570         Opened /dev/tristan/swap_1 RO O_DIRECT
#device/dev-io.c:308       /dev/tristan/swap_1: using cached size 33488896 sectors
#device/dev-io.c:625         Closed /dev/tristan/swap_1
#device/dev-io.c:570         Opened /dev/tristan/swap_1 RO O_DIRECT
#device/dev-io.c:145         /dev/tristan/swap_1: block size is 4096 bytes
#device/dev-io.c:156         /dev/tristan/swap_1: physical block size is 4096 bytes
#device/dev-io.c:625         Closed /dev/tristan/swap_1
#device/dev-io.c:308       /dev/tristan/swap_1: using cached size 33488896 sectors
#device/dev-io.c:570         Opened /dev/tristan/swap_1 RO O_DIRECT
#device/dev-io.c:145         /dev/tristan/swap_1: block size is 4096 bytes
#device/dev-io.c:156         /dev/tristan/swap_1: physical block size is 4096 bytes
#device/dev-io.c:625         Closed /dev/tristan/swap_1
#device/dev-cache.c:1536         Using /dev/tristan/swap_1
#label/label.c:286         Reading label from device /dev/tristan/swap_1
#device/dev-io.c:570         Opened /dev/tristan/swap_1 RO O_DIRECT
#device/dev-io.c:145         /dev/tristan/swap_1: block size is 4096 bytes
#device/dev-io.c:156         /dev/tristan/swap_1: physical block size is 4096 bytes
#label/label.c:189       /dev/tristan/swap_1: No label detected
#device/dev-io.c:625         Closed /dev/tristan/swap_1
#device/dev-io.c:570         Opened /dev/loop1 RO O_DIRECT
#device/dev-io.c:330       /dev/loop1: size is 0 sectors
#filters/filter-usable.c:44         /dev/loop1: Skipping: Too small to hold a PV
#device/dev-io.c:625         Closed /dev/loop1
#device/dev-io.c:570         Opened /dev/sda1 RO O_DIRECT
#device/dev-io.c:330       /dev/sda1: size is 497664 sectors
#device/dev-io.c:625         Closed /dev/sda1
#filters/filter-mpath.c:196         /dev/sda1: Device is a partition, using primary device sda for mpath component detection
#device/dev-io.c:308       /dev/sda1: using cached size 497664 sectors
#device/dev-io.c:570         Opened /dev/sda1 RO O_DIRECT
#device/dev-io.c:145         /dev/sda1: block size is 4096 bytes
#device/dev-io.c:156         /dev/sda1: physical block size is 4096 bytes
#device/dev-io.c:625         Closed /dev/sda1
#device/dev-cache.c:1536         Using /dev/sda1
#label/label.c:286         Reading label from device /dev/sda1
#device/dev-io.c:570         Opened /dev/sda1 RO O_DIRECT
#device/dev-io.c:145         /dev/sda1: block size is 4096 bytes
#device/dev-io.c:156         /dev/sda1: physical block size is 4096 bytes
#label/label.c:189       /dev/sda1: No label detected
#device/dev-io.c:625         Closed /dev/sda1
#ioctl/libdm-iface.c:1848         dm status   (253:1) [ noopencount noflush ]   [16384] (*1)
#device/dev-io.c:570         Opened /dev/tristan/tristan-home RO O_DIRECT
#device/dev-io.c:308       /dev/tristan/tristan-home: using cached size 3348725760 sectors
#device/dev-io.c:625         Closed /dev/tristan/tristan-home
#device/dev-io.c:570         Opened /dev/tristan/tristan-home RO O_DIRECT
#device/dev-io.c:145         /dev/tristan/tristan-home: block size is 4096 bytes
#device/dev-io.c:156         /dev/tristan/tristan-home: physical block size is 4096 bytes
#device/dev-io.c:625         Closed /dev/tristan/tristan-home
#device/dev-io.c:308       /dev/tristan/tristan-home: using cached size 3348725760 sectors
#device/dev-io.c:570         Opened /dev/tristan/tristan-home RO O_DIRECT
#device/dev-io.c:145         /dev/tristan/tristan-home: block size is 4096 bytes
#device/dev-io.c:156         /dev/tristan/tristan-home: physical block size is 4096 bytes
#device/dev-io.c:625         Closed /dev/tristan/tristan-home
#device/dev-cache.c:1536         Using /dev/tristan/tristan-home
#label/label.c:286         Reading label from device /dev/tristan/tristan-home
#device/dev-io.c:570         Opened /dev/tristan/tristan-home RO O_DIRECT
#device/dev-io.c:145         /dev/tristan/tristan-home: block size is 4096 bytes
#device/dev-io.c:156         /dev/tristan/tristan-home: physical block size is 4096 bytes
#label/label.c:189       /dev/tristan/tristan-home: No label detected
#device/dev-io.c:625         Closed /dev/tristan/tristan-home
#device/dev-io.c:570         Opened /dev/loop2 RO O_DIRECT
#device/dev-io.c:330       /dev/loop2: size is 0 sectors
#filters/filter-usable.c:44         /dev/loop2: Skipping: Too small to hold a PV
#device/dev-io.c:625         Closed /dev/loop2
#device/dev-io.c:570         Opened /dev/sda2 RO O_DIRECT
#device/dev-io.c:330       /dev/sda2: size is 2 sectors
#filters/filter-usable.c:44         /dev/sda2: Skipping: Too small to hold a PV
#device/dev-io.c:625         Closed /dev/sda2
#device/dev-io.c:570         Opened /dev/loop3 RO O_DIRECT
#device/dev-io.c:330       /dev/loop3: size is 0 sectors
#filters/filter-usable.c:44         /dev/loop3: Skipping: Too small to hold a PV
#device/dev-io.c:625         Closed /dev/loop3
#device/dev-io.c:570         Opened /dev/loop4 RO O_DIRECT
#device/dev-io.c:330       /dev/loop4: size is 0 sectors
#filters/filter-usable.c:44         /dev/loop4: Skipping: Too small to hold a PV
#device/dev-io.c:625         Closed /dev/loop4
#device/dev-io.c:570         Opened /dev/loop5 RO O_DIRECT
#device/dev-io.c:330       /dev/loop5: size is 0 sectors
#filters/filter-usable.c:44         /dev/loop5: Skipping: Too small to hold a PV
#device/dev-io.c:625         Closed /dev/loop5
#device/dev-io.c:330       /dev/sda5: size is 3906527232 sectors
#filters/filter-mpath.c:196         /dev/sda5: Device is a partition, using primary device sda for mpath component detection
#device/dev-io.c:308       /dev/sda5: using cached size 3906527232 sectors
#device/dev-cache.c:1536         Using /dev/sda5
#label/label.c:281         Reading label from lvmcache for /dev/sda5
#device/dev-io.c:570         Opened /dev/loop6 RO O_DIRECT
#device/dev-io.c:330       /dev/loop6: size is 0 sectors
#filters/filter-usable.c:44         /dev/loop6: Skipping: Too small to hold a PV
#device/dev-io.c:625         Closed /dev/loop6
#device/dev-io.c:570         Opened /dev/loop7 RO O_DIRECT
#device/dev-io.c:330       /dev/loop7: size is 0 sectors
#filters/filter-usable.c:44         /dev/loop7: Skipping: Too small to hold a PV
#device/dev-io.c:625         Closed /dev/loop7
#device/dev-io.c:570         Opened /dev/sdb RO O_DIRECT
#device/dev-io.c:330       /dev/sdb: size is 3907029168 sectors
#device/dev-io.c:625         Closed /dev/sdb
#device/dev-io.c:570         Opened /dev/sdb RO O_DIRECT
#device/dev-io.c:145         /dev/sdb: block size is 4096 bytes
#device/dev-io.c:156         /dev/sdb: physical block size is 4096 bytes
#device/dev-io.c:625         Closed /dev/sdb
#filters/filter-partitioned.c:27         /dev/sdb: Skipping: Partition table signature found
#device/dev-io.c:570         Opened /dev/sdb1 RO O_DIRECT
#device/dev-io.c:330       /dev/sdb1: size is 497664 sectors
#device/dev-io.c:625         Closed /dev/sdb1
#filters/filter-mpath.c:196         /dev/sdb1: Device is a partition, using primary device sdb for mpath component detection
#device/dev-io.c:308       /dev/sdb1: using cached size 497664 sectors
#device/dev-io.c:570         Opened /dev/sdb1 RO O_DIRECT
#device/dev-io.c:145         /dev/sdb1: block size is 4096 bytes
#device/dev-io.c:156         /dev/sdb1: physical block size is 4096 bytes
#device/dev-io.c:625         Closed /dev/sdb1
#device/dev-cache.c:1536         Using /dev/sdb1
#label/label.c:286         Reading label from device /dev/sdb1
#device/dev-io.c:570         Opened /dev/sdb1 RO O_DIRECT
#device/dev-io.c:145         /dev/sdb1: block size is 4096 bytes
#device/dev-io.c:156         /dev/sdb1: physical block size is 4096 bytes
#label/label.c:189       /dev/sdb1: No label detected
#device/dev-io.c:625         Closed /dev/sdb1
#device/dev-io.c:570         Opened /dev/sdb2 RO O_DIRECT
#device/dev-io.c:330       /dev/sdb2: size is 2 sectors
#filters/filter-usable.c:44         /dev/sdb2: Skipping: Too small to hold a PV
#device/dev-io.c:625         Closed /dev/sdb2
#device/dev-io.c:330       /dev/sdb5: size is 3906527232 sectors
#filters/filter-mpath.c:196         /dev/sdb5: Device is a partition, using primary device sdb for mpath component detection
#device/dev-io.c:308       /dev/sdb5: using cached size 3906527232 sectors
#device/dev-cache.c:1536         Using /dev/sdb5
#label/label.c:281         Reading label from lvmcache for /dev/sdb5
#device/dev-io.c:570         Opened /dev/sdc RO O_DIRECT
#device/dev-io.c:330       /dev/sdc: size is 1953529856 sectors
#device/dev-io.c:625         Closed /dev/sdc
#device/dev-io.c:570         Opened /dev/sdc RO O_DIRECT
#device/dev-io.c:145         /dev/sdc: block size is 4096 bytes
#device/dev-io.c:156         /dev/sdc: physical block size is 512 bytes
#device/dev-io.c:625         Closed /dev/sdc
#filters/filter-partitioned.c:27         /dev/sdc: Skipping: Partition table signature found
#device/dev-io.c:570         Opened /dev/sdc1 RO O_DIRECT
#device/dev-io.c:330       /dev/sdc1: size is 1953527808 sectors
#device/dev-io.c:625         Closed /dev/sdc1
#filters/filter-mpath.c:196         /dev/sdc1: Device is a partition, using primary device sdc for mpath component detection
#device/dev-io.c:308       /dev/sdc1: using cached size 1953527808 sectors
#device/dev-io.c:570         Opened /dev/sdc1 RO O_DIRECT
#device/dev-io.c:145         /dev/sdc1: block size is 4096 bytes
#device/dev-io.c:156         /dev/sdc1: physical block size is 512 bytes
#device/dev-io.c:625         Closed /dev/sdc1
#device/dev-cache.c:1536         Using /dev/sdc1
#label/label.c:286         Reading label from device /dev/sdc1
#device/dev-io.c:570         Opened /dev/sdc1 RO O_DIRECT
#device/dev-io.c:145         /dev/sdc1: block size is 4096 bytes
#device/dev-io.c:156         /dev/sdc1: physical block size is 512 bytes
#label/label.c:189       /dev/sdc1: No label detected
#device/dev-io.c:625         Closed /dev/sdc1
#cache/lvmcache.c:1153       Scanned 7 device labels
#metadata/vg.c:74         Allocated VG tristan at 0x55fd59b48410.
#label/label.c:281         Reading label from lvmcache for /dev/sda5
#label/label.c:281         Reading label from lvmcache for /dev/sdb5
#format_text/import_vsn1.c:597         Importing logical volume tristan/root.
#format_text/import_vsn1.c:597         Importing logical volume tristan/swap_1.
#format_text/import_vsn1.c:597         Importing logical volume tristan/tristan-home.
#format_text/import_vsn1.c:597         Importing logical volume tristan/root_mimage_0.
#format_text/import_vsn1.c:597         Importing logical volume tristan/root_mimage_1.
#format_text/import_vsn1.c:597         Importing logical volume tristan/root_mlog.
#format_text/import_vsn1.c:597         Importing logical volume tristan/root_mlog_mimage_0.
#format_text/import_vsn1.c:597         Importing logical volume tristan/root_mlog_mimage_1.
#metadata/lv_manip.c:1189       Stack tristan/root:0[0] on LV tristan/root_mimage_0:0.
#metadata/lv_manip.c:746       Adding tristan/root:0 as an user of tristan/root_mimage_0.
#metadata/lv_manip.c:1189       Stack tristan/root:0[1] on LV tristan/root_mimage_1:0.
#metadata/lv_manip.c:746       Adding tristan/root:0 as an user of tristan/root_mimage_1.
#metadata/lv_manip.c:1189       Stack tristan/root_mlog:0[0] on LV tristan/root_mlog_mimage_0:0.
#metadata/lv_manip.c:746       Adding tristan/root_mlog:0 as an user of tristan/root_mlog_mimage_0.
#metadata/lv_manip.c:1189       Stack tristan/root_mlog:0[1] on LV tristan/root_mlog_mimage_1:0.
#metadata/lv_manip.c:746       Adding tristan/root_mlog:0 as an user of tristan/root_mlog_mimage_1.
#metadata/lv_manip.c:746       Adding tristan/root:0 as an user of tristan/root_mlog.
#format_text/format-text.c:558         Read tristan metadata (40) from /dev/sda5 at 174080 size 3722
#format_text/format-text.c:563         Skipped reading metadata from /dev/sdb5 at 134144 size 3722 with matching checksum.
#cache/lvmcache.c:1944         lvmcache /dev/sda5: VG tristan: set system_id to .
#cache/lvmcache.c:202         Metadata cache: VG tristan (ntPJjD-J0JN-BtxH-OF1A-zkaP-BLbh-k1vWLh) stored (3722 bytes).
#metadata/metadata.c:4263     There are 1 physical volumes missing.
#device/dev-io.c:308       /dev/sda5: using cached size 3906527232 sectors
#metadata/pv_manip.c:421         /dev/sda5 0:      0  63999: root_mimage_0(0:0)
#metadata/pv_manip.c:421         /dev/sda5 1:  63999      1: NULL(0:0)
#metadata/pv_manip.c:421         /dev/sda5 2:  64000 217600: tristan-home(191155:0)
#metadata/pv_manip.c:421         /dev/sda5 3: 281600 191148: tristan-home(0:0)
#metadata/pv_manip.c:421         /dev/sda5 4: 472748   4088: swap_1(0:0)
#metadata/pv_manip.c:421         /dev/sda5 5: 476836      1: NULL(0:0)
#metadata/pv_manip.c:421         /dev/sda5 6: 476837      7: tristan-home(191148:0)
#metadata/pv_manip.c:421         /dev/sda5 7: 476844      1: NULL(0:0)
#metadata/pv_manip.c:421         /dev/sda5 8: 476845     25: tristan-home(408755:0)
#metadata/pv_manip.c:421         /dev/sdb5 0:      0  63999: root_mimage_1(0:0)
#metadata/pv_manip.c:421         /dev/sdb5 1:  63999      1: root_mlog_mimage_1(0:0)
#metadata/pv_manip.c:421         /dev/sdb5 2:  64000 408781: NULL(0:0)
#metadata/pv_manip.c:421         /dev/sdb5 3: 472781      1: root_mlog_mimage_0(0:0)
#metadata/pv_manip.c:421         /dev/sdb5 4: 472782   4088: NULL(0:0)
#metadata/vg.c:74         Allocated VG tristan at 0x55fd59b64a10.
#label/label.c:281         Reading label from lvmcache for /dev/sda5
#label/label.c:281         Reading label from lvmcache for /dev/sdb5
#format_text/import_vsn1.c:597         Importing logical volume tristan/root.
#format_text/import_vsn1.c:597         Importing logical volume tristan/swap_1.
#format_text/import_vsn1.c:597         Importing logical volume tristan/tristan-home.
#format_text/import_vsn1.c:597         Importing logical volume tristan/root_mimage_0.
#format_text/import_vsn1.c:597         Importing logical volume tristan/root_mimage_1.
#format_text/import_vsn1.c:597         Importing logical volume tristan/root_mlog.
#format_text/import_vsn1.c:597         Importing logical volume tristan/root_mlog_mimage_0.
#format_text/import_vsn1.c:597         Importing logical volume tristan/root_mlog_mimage_1.
#metadata/lv_manip.c:1189       Stack tristan/root:0[0] on LV tristan/root_mimage_0:0.
#metadata/lv_manip.c:746       Adding tristan/root:0 as an user of tristan/root_mimage_0.
#metadata/lv_manip.c:1189       Stack tristan/root:0[1] on LV tristan/root_mimage_1:0.
#metadata/lv_manip.c:746       Adding tristan/root:0 as an user of tristan/root_mimage_1.
#metadata/lv_manip.c:1189       Stack tristan/root_mlog:0[0] on LV tristan/root_mlog_mimage_0:0.
#metadata/lv_manip.c:746       Adding tristan/root_mlog:0 as an user of tristan/root_mlog_mimage_0.
#metadata/lv_manip.c:1189       Stack tristan/root_mlog:0[1] on LV tristan/root_mlog_mimage_1:0.
#metadata/lv_manip.c:746       Adding tristan/root_mlog:0 as an user of tristan/root_mlog_mimage_1.
#metadata/lv_manip.c:746       Adding tristan/root:0 as an user of tristan/root_mlog.
#format_text/import.c:198     There are 1 physical volumes missing.
#toollib.c:1970       Process single VG tristan
#metadata/vg.c:89         Freeing VG tristan at 0x55fd59b68a20.
#activate/dev_manager.c:696         Getting device info for tristan-root [LVM-ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLh1U8OpZOZMvZnROK26JsKTnEeRoXFA1IK].
#ioctl/libdm-iface.c:1848         dm info  LVM-ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLh1U8OpZOZMvZnROK26JsKTnEeRoXFA1IK [ noopencount flush ]   [16384] (*1)
#activate/dev_manager.c:678         Skipping checks for old devices without LVM- dm uuid prefix (kernel vsn 4 >= 3).
#activate/dev_manager.c:696         Getting device info for tristan-swap_1 [LVM-ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLhKEuNaNIShSER5P7fTiIwD4mHeXaqS3WL].
#ioctl/libdm-iface.c:1848         dm info  LVM-ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLhKEuNaNIShSER5P7fTiIwD4mHeXaqS3WL [ noopencount flush ]   [16384] (*1)
#activate/dev_manager.c:696         Getting device info for tristan-tristan--home [LVM-ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLhav1jII4xV0UmBevpRG143ysUhsLY2ley].
#ioctl/libdm-iface.c:1848         dm info  LVM-ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLhav1jII4xV0UmBevpRG143ysUhsLY2ley [ noopencount flush ]   [16384] (*1)
#activate/activate.c:1483         Counted 2 active LVs in VG tristan
#vgchange.c:235     2 logical volume(s) in volume group "tristan" already active
#activate/dev_manager.c:696         Getting device info for tristan-root [LVM-ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLh1U8OpZOZMvZnROK26JsKTnEeRoXFA1IK].
#ioctl/libdm-iface.c:1848         dm info  LVM-ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLh1U8OpZOZMvZnROK26JsKTnEeRoXFA1IK [ noopencount flush ]   [16384] (*1)
#activate/dev_manager.c:696         Getting device info for tristan-swap_1 [LVM-ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLhKEuNaNIShSER5P7fTiIwD4mHeXaqS3WL].
#ioctl/libdm-iface.c:1848         dm info  LVM-ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLhKEuNaNIShSER5P7fTiIwD4mHeXaqS3WL [ noopencount flush ]   [16384] (*1)
#activate/dev_manager.c:696         Getting device info for tristan-tristan--home [LVM-ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLhav1jII4xV0UmBevpRG143ysUhsLY2ley].
#ioctl/libdm-iface.c:1848         dm info  LVM-ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLhav1jII4xV0UmBevpRG143ysUhsLY2ley [ noopencount flush ]   [16384] (*1)
#activate/dev_manager.c:696         Getting device info for tristan-root_mimage_0 [LVM-ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLh0vApwb6YBqJPsfITt1tZG8OXgl1o4ALu].
#ioctl/libdm-iface.c:1848         dm info  LVM-ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLh0vApwb6YBqJPsfITt1tZG8OXgl1o4ALu [ noopencount flush ]   [16384] (*1)
#activate/dev_manager.c:696         Getting device info for tristan-root_mimage_1 [LVM-ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLhHtsJVjbdTVDfEaIm5OXvJJkgrK5pUwl2].
#ioctl/libdm-iface.c:1848         dm info  LVM-ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLhHtsJVjbdTVDfEaIm5OXvJJkgrK5pUwl2 [ noopencount flush ]   [16384] (*1)
#activate/dev_manager.c:696         Getting device info for tristan-root_mlog [LVM-ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLhSfTj6Bdu0zTX3cxrY9Y6LrDjLJk2RVKv].
#ioctl/libdm-iface.c:1848         dm info  LVM-ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLhSfTj6Bdu0zTX3cxrY9Y6LrDjLJk2RVKv [ noopencount flush ]   [16384] (*1)
#activate/dev_manager.c:696         Getting device info for tristan-root_mlog_mimage_0 [LVM-ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLh2xYHUD7D8yvi30OcgMZQZu3KX8wQc601].
#ioctl/libdm-iface.c:1848         dm info  LVM-ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLh2xYHUD7D8yvi30OcgMZQZu3KX8wQc601 [ noopencount flush ]   [16384] (*1)
#activate/dev_manager.c:696         Getting device info for tristan-root_mlog_mimage_1 [LVM-ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLhQuUCTPIxuADZeK3AhJSZQkTi4vphwIVh].
#ioctl/libdm-iface.c:1848         dm info  LVM-ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLhQuUCTPIxuADZeK3AhJSZQkTi4vphwIVh [ noopencount flush ]   [16384] (*1)
#vgchange.c:242     2 existing logical volume(s) in volume group "tristan" monitored
#metadata/lv.c:1535     Activating logical volume tristan/root.
#misc/lvm-flock.c:202       Locking /run/lock/lvm/A_tristan WB
#misc/lvm-flock.c:100         _do_flock /run/lock/lvm/A_tristan:aux WB
#misc/lvm-flock.c:100         _do_flock /run/lock/lvm/A_tristan WB
#misc/lvm-flock.c:47         _undo_flock /run/lock/lvm/A_tristan:aux
#locking/file_locking.c:104       Locking LV ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLh1U8OpZOZMvZnROK26JsKTnEeRoXFA1IK (R)
#activate/activate.c:483     activation/volume_list configuration setting not defined: Checking only host tags for tristan/root.
#activate/activate.c:2515   Refusing activation of partial LV tristan/root.  Use '--activationmode partial' to override.
#activate/activate.c:2611         <backtrace>
#locking/locking.c:286         <backtrace>
#locking/locking.c:358         <backtrace>
#misc/lvm-flock.c:70       Unlocking /run/lock/lvm/A_tristan
#misc/lvm-flock.c:47         _undo_flock /run/lock/lvm/A_tristan
#metadata/lv.c:1537         <backtrace>
#toollib.c:1083         <backtrace>
#activate/dev_manager.c:696         Getting device info for tristan-root [LVM-ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLh1U8OpZOZMvZnROK26JsKTnEeRoXFA1IK].
#ioctl/libdm-iface.c:1848         dm info  LVM-ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLh1U8OpZOZMvZnROK26JsKTnEeRoXFA1IK [ noopencount flush ]   [16384] (*1)
#activate/activate.c:1590       tristan/root is not active
#vgchange.c:128         <backtrace>
#metadata/lv.c:1535     Activating logical volume tristan/swap_1.
#misc/lvm-flock.c:202       Locking /run/lock/lvm/A_ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLhKEuNaNIShSER5P7fTiIwD4mHeXaqS3WL WB
#misc/lvm-flock.c:100         _do_flock /run/lock/lvm/A_ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLhKEuNaNIShSER5P7fTiIwD4mHeXaqS3WL:aux WB
#misc/lvm-flock.c:100         _do_flock /run/lock/lvm/A_ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLhKEuNaNIShSER5P7fTiIwD4mHeXaqS3WL WB
#misc/lvm-flock.c:47         _undo_flock /run/lock/lvm/A_ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLhKEuNaNIShSER5P7fTiIwD4mHeXaqS3WL:aux
#locking/file_locking.c:104       Locking LV ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLhKEuNaNIShSER5P7fTiIwD4mHeXaqS3WL (R)
#activate/activate.c:483     activation/volume_list configuration setting not defined: Checking only host tags for tristan/swap_1.
#activate/activate.c:2556         Activating tristan/swap_1.
#activate/dev_manager.c:696         Getting device info for tristan-swap_1 [LVM-ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLhKEuNaNIShSER5P7fTiIwD4mHeXaqS3WL].
#ioctl/libdm-iface.c:1848         dm info  LVM-ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLhKEuNaNIShSER5P7fTiIwD4mHeXaqS3WL [ noopencount flush ]   [16384] (*1)
#activate/activate.c:2567         LV tristan/swap_1 is already active.
#misc/lvm-flock.c:70       Unlocking /run/lock/lvm/A_ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLhKEuNaNIShSER5P7fTiIwD4mHeXaqS3WL
#misc/lvm-flock.c:47         _undo_flock /run/lock/lvm/A_ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLhKEuNaNIShSER5P7fTiIwD4mHeXaqS3WL
#metadata/lv.c:1535     Activating logical volume tristan/tristan-home.
#misc/lvm-flock.c:202       Locking /run/lock/lvm/A_ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLhav1jII4xV0UmBevpRG143ysUhsLY2ley WB
#misc/lvm-flock.c:100         _do_flock /run/lock/lvm/A_ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLhav1jII4xV0UmBevpRG143ysUhsLY2ley:aux WB
#misc/lvm-flock.c:100         _do_flock /run/lock/lvm/A_ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLhav1jII4xV0UmBevpRG143ysUhsLY2ley WB
#misc/lvm-flock.c:47         _undo_flock /run/lock/lvm/A_ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLhav1jII4xV0UmBevpRG143ysUhsLY2ley:aux
#locking/file_locking.c:104       Locking LV ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLhav1jII4xV0UmBevpRG143ysUhsLY2ley (R)
#activate/activate.c:483     activation/volume_list configuration setting not defined: Checking only host tags for tristan/tristan-home.
#activate/activate.c:2556         Activating tristan/tristan-home.
#activate/dev_manager.c:696         Getting device info for tristan-tristan--home [LVM-ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLhav1jII4xV0UmBevpRG143ysUhsLY2ley].
#ioctl/libdm-iface.c:1848         dm info  LVM-ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLhav1jII4xV0UmBevpRG143ysUhsLY2ley [ noopencount flush ]   [16384] (*1)
#activate/activate.c:2567         LV tristan/tristan-home is already active.
#misc/lvm-flock.c:70       Unlocking /run/lock/lvm/A_ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLhav1jII4xV0UmBevpRG143ysUhsLY2ley
#misc/lvm-flock.c:47         _undo_flock /run/lock/lvm/A_ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLhav1jII4xV0UmBevpRG143ysUhsLY2ley
#mm/memlock.c:562         Unlock: Memlock counters: locked:0 critical:0 daemon:0 suspended:0
#activate/fs.c:491         Syncing device names
#vgchange.c:155     Activated 2 logical volumes in volume group tristan
#vgchange.c:247         <backtrace>
#activate/dev_manager.c:696         Getting device info for tristan-root [LVM-ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLh1U8OpZOZMvZnROK26JsKTnEeRoXFA1IK].
#ioctl/libdm-iface.c:1848         dm info  LVM-ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLh1U8OpZOZMvZnROK26JsKTnEeRoXFA1IK [ noopencount flush ]   [16384] (*1)
#activate/dev_manager.c:696         Getting device info for tristan-swap_1 [LVM-ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLhKEuNaNIShSER5P7fTiIwD4mHeXaqS3WL].
#ioctl/libdm-iface.c:1848         dm info  LVM-ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLhKEuNaNIShSER5P7fTiIwD4mHeXaqS3WL [ noopencount flush ]   [16384] (*1)
#activate/dev_manager.c:696         Getting device info for tristan-tristan--home [LVM-ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLhav1jII4xV0UmBevpRG143ysUhsLY2ley].
#ioctl/libdm-iface.c:1848         dm info  LVM-ntPJjDJ0JNBtxHOF1AzkaPBLbhk1vWLhav1jII4xV0UmBevpRG143ysUhsLY2ley [ noopencount flush ]   [16384] (*1)
#activate/activate.c:1483         Counted 2 active LVs in VG tristan
#vgchange.c:253   2 logical volume(s) in volume group "tristan" now active
#vgchange.c:774         <backtrace>
#toollib.c:1975         <backtrace>
#mm/memlock.c:562         Unlock: Memlock counters: locked:0 critical:0 daemon:0 suspended:0
#activate/fs.c:491         Syncing device names
#cache/lvmcache.c:157         Metadata cache: VG tristan wiped.
#misc/lvm-flock.c:70       Unlocking /run/lock/lvm/V_tristan
#misc/lvm-flock.c:47         _undo_flock /run/lock/lvm/V_tristan
#device/dev-io.c:625         Closed /dev/sda5
#device/dev-io.c:625         Closed /dev/sdb5
#metadata/vg.c:89         Freeing VG tristan at 0x55fd59b64a10.
#metadata/vg.c:89         Freeing VG tristan at 0x55fd59b48410.
#libdm-config.c:1061       Setting global/notify_dbus to 1
#lvmcmdline.c:3007         Completed: vgchange -ay -vvvv

Re: Creating a drive mirror with LVM, including exact ...

Thank you for this! Very helpful. It seems that much of the advice out there is still to use the old Linux madam raid, but why do that when LVM can handle it with way more flexibility?

One comment: you might want to add a few extra arguments to the lvconvert command, to guard against unwieldy wait times after a system crash, as the mirrors rebuild:

lvconvert -m 1 --mirrorlog mirrored --alloc anywhere /dev/isabelle/root

I found that tidbit here: http://www.sandelman.ca/mcr/blog/lvm/

Cheers