Lost the disk for 1 vm: No such volume pve/vm-103-disk-1

[Digiones]

Hi everyone,


I’m working in a test lab environment with a 3-node Proxmox cluster (pve1, pve2, pve3).
Each node has 2 local disks — except pve2, which has 3

I had a local Exchange Server VM (ID 103, named “exch”) running on pve2.
The VM was fully installed (Windows + Exchange) and I was connected to the Exchange Admin Center when the issue happened.


I briefly left the environment running, and when I came back:

• Two of my nodes (pve2 and pve3) had a red cross in the Proxmox web UI (most likely a temporary network issue).
• After checking the hosts, I managed to bring all nodes back online and visible again in the cluster.

After the cluster recovered:

• Both VM 103 (exch) and VM 110 (AD) were no longer responding.
• I rebooted both:
  
  • AD (VM 110) came back fine.
  • Exchange (VM 103) failed to boot — the disk seems to be missing.

What I Checked​

• Both VMs were originally created on pve2, using local LVM-Thin storage.
• They had been migrated between nodes before (via ProxLB VM balancing tool).
• When running lsblk on all nodes, I don’t see the Exchange VM’s disk anywhere.
• In the web GUI, the disk appears as missing (gray/unavailable).
• Removing the EFI disk reference didn’t change anything.

the only thing i see is this on the gui

• What I’d Like to Know​

  • Is there any way to recover the missing VM disk (or data) from pve2?
  • Or at least, how can I understand what happened — did Proxmox unmap or lose the LVM-thin volume after the network disruption?
  • Any command or log I could check to confirm whether the LV still exists but is detached or corrupt?

Thanks in advance