[SOLVED] RBD storage over iscsi as LVM

[Railfox]

Hello. I have cluster of three proxmox nodes with version 3.4-6
I have started a file cluster storage by Ceph, have created rdb image and have created iscsi target (tgt-rdb) on two monitors of file cluster.
ISCSI target accessible from nodes, so i have connected them as multipath device.
Then i have added new ISCSI storage in proxmox gui, and LVM storage on it with group "images". So i have no problem, storage works.
Then i have created new VM with disk, install Debian 10, seems to have no problem. Machine works, but when i try to create backup i have error :

INFO: starting new backup job: vzdump 166 --remove 0 --mode snapshot --compress lzo --storage backup --node node1
INFO: Starting Backup of VM 166 (qemu)
INFO: status = running
INFO: update VM 166: -lock backup
Volume group "images" not found
ERROR: Backup of VM 166 failed - can't activate LV '/dev/images/vm-166-disk-1': Skipping volume group images
INFO: Backup job finished with errors
TASK ERROR: job errors

vgdisplay don't found this group, as it not LVM.

I cant upgrade proxmox now, and cant connect rbd native (too old kernel client).

How it can be - vm created, have no grub error, but no backups?

 

[Alwin]

Volume group "images" not found
ERROR: Backup of VM 166 failed - can't activate LV '/dev/images/vm-166-disk-1': Skipping volume group images

It fails, because it didn't find the VG 'images'.

I cant upgrade proxmox now, and cant connect rbd native (too old kernel client).

What does the failed backup have to do with the upgrade? As I assume the Ceph cluster is not running on Proxmox.

 

[Railfox]

Have chacked some times and found that multipath tools broke iSCSI LVM storage. With delete multipath have no problems in work with storage.

 

[Railfox]

You can close question.

 

[Alwin]

You can close question.

You can edit the thread title and set it to [SOLVED].