Failed disk - how to best recover?

[bfaler]

Hey everyone,

Last night I had one of the SSDs in my server fail. I'm not sure if it's hardware failure or something wrong with the partition table. Thankfully it is not the boot drive and doesn't contain any critical VMs, so it won't be the end of the world if I can't recover the data, but it is backed up nightly using the Proxmox Backup Server, so I assume it should be possible to recover it. It's a simple home server, no RAID or anything like that. The SSD was a LVM Thin volume.

Problem is I'm honestly not sure where to start. The Backup Server log from last night errored out with the following error:
102: 2026-03-26 01:00:04 ERROR: Backup of VM 102 failed - no such logical volume ssdgroup/ssdgroup

The virtual environment itself is throwing this error every 10 seconds or so:
Mar 26 15:21:54 baxster pvestatd[1536]: command '/sbin/vgscan --ignorelockingfailure --mknodes' failed: exit code 5
Mar 26 15:21:54 baxster pvestatd[1536]: no such logical volume ssdgroup/ssdgroup

The drive itself is /dev/sdb.

Can anyone give me any suggestions on where to go from here? I've got another SSD I could replace it with if necessary, but I honestly don't know where to even start. Would I want to remove the volume and recreate it? Create a new volume and disable the old? I assume using the Backup Server I can restore the VMs to a different disk if necessary?

 

[LnxBil]

I assume using the Backup Server I can restore the VMs to a different disk if necessary?

Yes, that's no problem.

Would I want to remove the volume and recreate it? Create a new volume and disable the old?

Your disk is gone, so there is nothing you can remove. Just create a new physical volume on the new disk, add the disk to a new volume group ssdgroup and create a thin volume ssdgroup as you had before.

 

[bfaler]

Yes, that's no problem.


Your disk is gone, so there is nothing you can remove. Just create a new physical volume on the new disk, add the disk to a new volume group ssdgroup and create a thin volume ssdgroup as you had before.

Thanks. I think I got it. I installed a new SSD, created a physical volume, volume group, and logical volume with the same name as before, then restored the two VMs to the original storage configuration and everything seems to be working! Much easier than I was expecting. Thanks for pointing me in the right direction.