data recovery from mirrored zfs

[aconnor]

Hi,
I've been struggling with a node for some time where I couldn't backup, copy or migrate the VMs. Tonight it seems to have gone down for the last time, so I'll go onsite tomorrow to see what I can do to fix it.

The Proxmox OS and datastore is all on a pair of ZFS mirrored NVMe drives.

Can I simply remove 1 of these drives, stick it in an external USB case and plug it into a new Proxmox node to copy the VMs off?

Anything else you suggest?

 

[Dunuin]

Beside the zvols (virtual disks of your VMs) and datasets (virtual disks of your LXCs) you also need the guest config files stored in a SQLite DB. The contents of this DB gets mounted at "/etc/pve" with the pmxcfs but only if the pve-cluster service is running. If your PVE isn't able to boot you will just find an empty "/etc/pve" folder so you can't backup the config files in "/etc/pve/qemu-server" and "/etc/pve/lxc".

 

[aconnor]

thanks @Dunuin - couldn't get it to boot at all.
I got the VM running on different hardware (and software) and I brought the non booting node back to the office to see if I can find out what killed it. Thanks for your help