"storage migration failed" moving a local disk to lvmthin

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larsen

Well-Known Member
Feb 28, 2020
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I have a VM that is using a local qcow2 disk (virtual 465 GB, physical 55 GB) that is stored on a local directory (100 GB). The VM has recently been migrated from another node to the new, second node in a cluster. It's running fine, only the disk needs to be moved to a lvmthin storage (7 TB).

This process seems to run fine up until 100%, but then I get this error message:

Code: 
create full clone of drive scsi0 (local:108/vm-108-disk-1.qcow2)
  Rounding up size to full physical extent <465.77 GiB
  Logical volume "vm-108-disk-0" created.
transferred: 0 bytes remaining: 500109934592 bytes total: 500109934592 bytes progression: 0.00 %
transferred: 5001099345 bytes remaining: 495108835247 bytes total: 500109934592 bytes progression: 1.00 %
...
transferred: 495959022134 bytes remaining: 4150912458 bytes total: 500109934592 bytes progression: 99.17 %
transferred: 500109934592 bytes remaining: 0 bytes total: 500109934592 bytes progression: 100.00 %
transferred: 500109934592 bytes remaining: 0 bytes total: 500109934592 bytes progression: 100.00 %
  WARNING: Device /dev/dm-6 not initialized in udev database even after waiting 10000000 microseconds.
  WARNING: Device /dev/dm-6 not initialized in udev database even after waiting 10000000 microseconds.
  Logical volume "vm-108-disk-0" successfully removed
  WARNING: Device /dev/dm-6 not initialized in udev database even after waiting 10000000 microseconds.
TASK ERROR: storage migration failed: command '/sbin/lvs --separator : --noheadings --units b --unbuffered --nosuffix --options lv_size /dev/pve/vm-108-disk-0' failed: got timeout

Some info:
Code: 
Virtual Environment 6.1-8

atl-vm03:~# pveperf
CPU BOGOMIPS:      128004.60
REGEX/SECOND:      1688019
HD SIZE:           93.99 GB (/dev/mapper/pve-root)
BUFFERED READS:    246.93 MB/sec
AVERAGE SEEK TIME: 6.09 ms
FSYNCS/SECOND:     102.35
DNS EXT:           144.12 ms
DNS INT:           0.76 ms (atl.local)

atl-vm03:~# cat /etc/pve/storage.cfg
dir: Backup
    path /var/lib/vz/dump
    content backup
    maxfiles 2

dir: local
    path /var/lib/vz
    content rootdir,images,vztmpl,iso
    maxfiles 0

lvmthin: lvmthin
    thinpool data
    vgname pve
    content images,rootdir
    nodes atl-vm03

atl-vm03:~# ll /dev/dm*
brw-rw---- 1 root disk 253, 0 2020-04-14 16:59 /dev/dm-0
brw-rw---- 1 root disk 253, 1 2020-04-14 16:59 /dev/dm-1
brw-rw---- 1 root disk 253, 2 2020-04-15 15:05 /dev/dm-2
brw-rw---- 1 root disk 253, 3 2020-04-15 15:05 /dev/dm-3
brw-rw---- 1 root disk 253, 4 2020-04-15 15:05 /dev/dm-4
brw-rw---- 1 root disk 253, 5 2020-04-15 15:05 /dev/dm-5

How can I fix this?
 
could you try running `udevadm settle`, in a shell, while the migration is running?
 
Did this while the migration was at 7% (still running right now). Didn't produce any output. Should it?

Edit: Still getting the same error:
Code: 
  WARNING: Device /dev/dm-6 not initialized in udev database even after waiting 10000000 microseconds.
  Logical volume "vm-108-disk-0" successfully removed
  WARNING: Device /dev/dm-6 not initialized in udev database even after waiting 10000000 microseconds.
TASK ERROR: storage migration failed: command '/sbin/lvs --separator : --noheadings --units b --unbuffered --nosuffix --options lv_size /dev/pve/vm-108-disk-0' failed: got timeout
 
Last edited:
I have now added a second disk on lvm-thin and migrated the old disk with PartedMagic/Clonezilla.
 
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