Error when use new snapshot function on LVM-Thick

A

ab_lep

New Member
Dec 9, 2024
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Hello,

I have an error when i create a snapshot on top of an iSCSI/LVM-Thick:

Code: 
Wiping dos signature on /dev/VG_APP-TEST-TALEND/vm-315-state-test.
  Logical volume "vm-315-state-test" created.
saving VM state and RAM using storage 'APP-TEST-TALEND'
498.00 B in 0s
326.18 MiB in 1s
959.62 MiB in 2s
1.52 GiB in 3s
2.13 GiB in 4s
2.71 GiB in 5s
3.27 GiB in 6s
3.85 GiB in 7s
4.10 GiB in 8s
4.28 GiB in 9s
completed saving the VM state in 9s, saved 4.45 GiB
snapshotting 'drive-scsi0' (APP-TEST-TALEND:vm-315-disk-0.qcow2)
external qemu snapshot
Creating a new current volume with test as backing snap
  Renamed "vm-315-disk-0.qcow2" to "snap_vm-315-disk-0_test.qcow2" in volume group "VG_APP-TEST-TALEND"
  Rounding up size to full physical extent <100.02 GiB
  Logical volume "vm-315-disk-0.qcow2" created.
Formatting '/dev/VG_APP-TEST-TALEND/vm-315-disk-0.qcow2', fmt=qcow2 cluster_size=131072 extended_l2=on preallocation=metadata compression_type=zlib size=107374182400 backing_file=snap_vm-315-disk-0_test.qcow2 backing_fmt=qcow2 lazy_refcounts=off refcount_bits=16
blockdev replace current by test
snapshot create failed: starting cleanup
  Logical volume "vm-315-state-test" successfully removed.
TASK ERROR: VM 315 qmp command 'blockdev-reopen' failed - Failed to find node with node-name='drive-scsi0'

Code: 
root@pve1:~# lvdisplay VG_APP-TEST-TALEND
  --- Logical volume ---
  LV Path                /dev/VG_APP-TEST-TALEND/snap_vm-315-disk-0_test.qcow2
  LV Name                snap_vm-315-disk-0_test.qcow2
  VG Name                VG_APP-TEST-TALEND
  LV UUID                8ZjiBe-HELt-T88K-ak1Q-0lZW-jEKL-d0gvmk
  LV Write Access        read/write
  LV Creation host, time pve1, 2025-08-06 10:54:44 +0200
  LV Status              available
  # open                 2
  LV Size                <100.02 GiB
  Current LE             25604
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     16320
  Block device           252:43

  --- Logical volume ---
  LV Path                /dev/VG_APP-TEST-TALEND/vm-315-disk-0.qcow2
  LV Name                vm-315-disk-0.qcow2
  VG Name                VG_APP-TEST-TALEND
  LV UUID                31v7dH-pTlE-5zG1-CHCc-uSdn-FHje-82SQ2u
  LV Write Access        read/write
  LV Creation host, time pve1, 2025-08-06 15:59:44 +0200
  LV Status              available
  # open                 0
  LV Size                <100.02 GiB
  Current LE             25604
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     16320
  Block device           252:45

Pveversion = pve-manager/9.0.3/025864202ebb6109 (running kernel: 6.14.8-2-pve)

Anybody help ?
 
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