Question about root disk failure

[Toxik]

Hi,
I've got a Proxmox installed on a ZFS RAID1. I've also noticed that the two root disks have 3 partitions: "BIOS boot", "EFI system" and "ZFS".
I wonder what happens, when one of the root disks fails. For ZFS it should not be a problem, but what about booting the system? Are the first 2 partitions redundant and Proxmox can still boot with one disk removed?
After changing the failed disk, what has to be done?

 

[Stoiko Ivanov]

If you've installed PVE with the installer with zfs on root and on a efi system the EFI-partitions are kept in sync by a few hook-scripts and `pve-efiboot-tool` - see https://pve.proxmox.com/pve-docs/pve-admin-guide.html#chapter_zfs and https://pve.proxmox.com/pve-docs/pve-admin-guide.html#sysboot

hope this helps!

 

[Toxik]

Thanks! That indeeed helps.