Migrate VM Task error

[rian81]

Hi,

I want to migrate vm to other node, but the result :

TASK ERROR: can't activate LV '/dev/High-Performance/vm-108-disk-0':   device-mapper: create ioctl on High--Performance-vm--108--disk--0 LVM-0yMsCViOMZn9xYKxPDIpYZ3lid4L6cCU9Ib0t2cbkd1NRYlMkalifzl6ys1F2kE7 failed: Device or resource busy

When i check to destination node, there is a same disk but different size

sdh                                                                                                     8:112  0     7T  0 disk
├─High--Performance-vm--101--disk--0                                                                  252:8    0   200G  0 lvm
├─High--Performance-vm--104--disk--0                                                                  252:10   0    40G  0 lvm
├─High--Performance-vm--108--disk--0                                                                  252:11   0    50G  0 lvm
├─High--Performance-vm--110--disk--0                                                                  252:12   0    15G  0 lvm
├─High--Performance-vm--111--disk--0                                                                  252:13   0   125G  0 lvm
├─High--Performance-vm--122--disk--0                                                                  252:15   0   500G  0 lvm
├─High--Performance-vm--129--disk--0                                                                  252:18   0   100G  0 lvm
├─High--Performance-vm--129--disk--1                                                                  252:20   0   100G  0 lvm
├─High--Performance-vm--113--disk--0                                                                  252:22   0    50G  0 lvm
├─High--Performance-vm--106--disk--0                                                                  252:23   0    60G  0 lvm
├─High--Performance-vm--118--disk--0                                                                  252:24   0    30G  0 lvm
├─High--Performance-vm--123--disk--0                                                                  252:25   0    30G  0 lvm
├─High--Performance-vm--124--disk--0                                                                  252:26   0    30G  0 lvm
├─High--Performance-vm--127--disk--0                                                                  252:27   0   127G  0 lvm
├─High--Performance-vm--127--disk--1                                                                  252:28   0   125G  0 lvm
├─High--Performance-vm--131--cloudinit                                                                252:29   0     4M  0 lvm
├─High--Performance-vm--131--disk--0                                                                  252:30   0    30G  0 lvm
├─High--Performance-vm--132--cloudinit                                                                252:31   0     4M  0 lvm
├─High--Performance-vm--131--disk--1                                                                  252:32   0    80G  0 lvm

When check with lvdisplay, there's no High--Performance-vm--108--disk--0 with size 50Gb

  --- Logical volume ---
  LV Path                /dev/High-Performance/vm-108-disk-0
  LV Name                vm-108-disk-0
  VG Name                High-Performance
  LV UUID                9Ib0t2-cbkd-1NRY-lMka-lifz-l6ys-1F2kE7
  LV Write Access        read/write
  LV Creation host, time CBN-node1, 2024-05-29 11:20:31 +0700
  LV Status              NOT available
  LV Size                100.00 GiB
  Current LE             25600
  Segments               2
  Allocation             inherit
  Read ahead sectors     auto
 
  --- Logical volume ---
  LV Path                /dev/High-Performance/vm-108-cloudinit
  LV Name                vm-108-cloudinit
  VG Name                High-Performance
  LV UUID                zVieHc-mNyH-9X6f-BfGp-j6y7-V2tn-6d2GdR
  LV Write Access        read/write
  LV Creation host, time CBN-node1, 2024-05-29 11:25:03 +0700
  LV Status              NOT available
  LV Size                4.00 MiB
  Current LE             1
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto

Here vm configuration

 

[Azunai333]

Could that disk be an old one from an old deleted VM?

If you don't know what's inside you could create a new VM on the target node.
After that add a live cd image to the cdrom.
Then you could rename that disk so it matches the id of new VM and mount it.

 

[rian81]

Maybe, but how to delete it (the old one), because it not appear from the list of storage

 

[Azunai333]

Datacenter > Node (with the VM disk) > Storage (with the VM disk) > VM Disks
Select the VM disk from the list and click the "Remove" button.

 

[rian81]

It doesn't appear on storage, you can see on lvdisplay above, the old 50Gb disk doesn't exist.

 

[Parfu]

The other day, I encountered a similar issue and resolved it by:

1. Shutting down the virtual machine;
2. Moving it to another node.
3. Removing the locked disk using the command dmsetup remove /dev/.../vm-108" etc;
4. Starting the virtual machine again. This resolved the issue.

I hope this helps you.

 

[rian81]

Thanks @Parfu , will try next on maintenance schedule

 

[rian81]

Update :

Thanks a lot @Parfu , it works, but i didn't shutoff the vm

 

[Parfu]

Update :

Thanks a lot @Parfu , it works, but i didn't shutoff the vm

Unfortunately, this won't work for me unless the computer is turned off. I get an error message in shell "Device or resource is busy".
However, I'm glad that I was able to help you.