proxmox 5.3 install degraded mode raid1

[chalan]

i need to install proxmox with raid1 (mirror) and use only first disk... i will add the second hdd later after i solve some problems with backup.... but the installer wont let me choose only first disc(second "do not use")...

weird thing is that the installer let zfs raid0 (stripped) install with only one disk... is it a bug??? it should be vice versa...

 

[Stoiko Ivanov]

You should be able to make a mirror out of a single device vdev via `zpool attach` (see `man zpool`)

If it's a single disk you don't have any redundancy - hence the RAID0 in the installer