Restore the VMs in ZFS storage after reinstalling the PVE system

[nsc117]

I'm doing a test
Simulate a scenario
The PVE system crashes without preparation
But the data in the ZFS storage is intact
I want to know
How to Restore the VMs in ZFS storage after reinstalling the PVE system.
I have done the following:
1.Reinstall the PVE system
2.Restore ZFS storage use “zpool import”
3.Add ZFS storage to the data center
What to do next?
thanks!

 

[shanreich]

Do you have a backup of your VM configuration files? If you have a backup of the configuration files located in /etc/pve/nodes/{nodename}/{qemu-server,lxc}, then you just need to add them again on the new node (there is a symlink to the folder for the local configuration files located in /etc/pve/{qemu-server,lxc}). With those configuration files you should just be able to run the VMs again (if the ZFS storage has the same name as before).

 

[nsc117]

Do you have a backup of your VM configuration files? If you have a backup of the configuration files located in /etc/pve/nodes/{nodename}/{qemu-server,lxc}, then you just need to add them again on the new node (there is a symlink to the folder for the local configuration files located in /etc/pve/{qemu-server,lxc}). With those configuration files you should just be able to run the VMs again (if the ZFS storage has the same name as before).

I'm simulating a situation where there is no configuration file

 

[shanreich]

I'm simulating a situation where there is no configuration file

Then you will have to recreate the VM configuration manually and reattach the disks. You can create a new VM with the same ID as the old one, then PVE should pick up the disks again after running qm disk rescan. If you create a VM with a different ID, then you will have to rename the disks as well [1].

Generally I would just suggest backing up the configuration files as well, as it saves a lot of hassle in this exact scenario.

[1] https://pve.proxmox.com/wiki/Moving...ine_to_another#Step_3:_Rename.2FMove_the_disk