Hello friends,
my PVE boot disk just died. Re-installed PVE on new disk.
Found out I do not have a backup of /etc/pve/qemu-server.
ZFS pool with vms is still available
$ zfs list
zfs-pool-01 2.63T 39.6T 559G /zfs-pool-01
zfs-pool-01/vm-1-disk-0 81.6G 39.7T...