Change bad HDD, containing /dev/sda BIOS boot

[innoXMOX]

Hello everybody

I have three physical servers, running proxmox VE and hosting several VMs without troubles.
Lately, on px2 one HDD starts to fail the SMART testing routines.
I have an identical new HDD here and would like to change it.
So far so good.

In px2, there are four HDDs. Unfortunatley, the one which fails is device /dev/sda and contains the BIOS boot partion:

• /dev/sda BIOS boot, ZFS, ZFS reserved
• /dev/sdb ZFS, ZFS reserved
• /dev/sdc zfs_member
• /dev/sdd xfs, Ceph, ceph_bluestore

NAME    MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda       8:0    0 465.8G  0 disk
├─sda1    8:1    0  1007K  0 part
├─sda2    8:2    0 465.8G  0 part
└─sda9    8:9    0     8M  0 part
sdb       8:16   0 465.8G  0 disk
├─sdb1    8:17   0 465.8G  0 part
└─sdb9    8:25   0     8M  0 part
sdc       8:32   0   3.6T  0 disk
sdd       8:48   0   3.6T  0 disk
├─sdd1    8:49   0   100M  0 part /var/lib/ceph/osd/ceph-0
└─sdd2    8:50   0   3.6T  0 part
zd0     230:0    0   200G  0 disk
├─zd0p1 230:1    0   243M  0 part
├─zd0p2 230:2    0     1K  0 part
├─zd0p3 230:3    0    50G  0 part
├─zd0p4 230:4    0   100G  0 part
└─zd0p5 230:5    0  49.8G  0 part
zd16    230:16   0     8G  0 disk [SWAP]

All VMs (guests) are moved to the other nodes.

I found several "ideas" how to change HDDs on proxmox installations. But none of them is very clear to me and seems to match my setup.
Is there somewhere a simple recipe to follow for my situation?
Or is the best way to change the HDD and reinstall PROXMOX?

Any feedback is highly appreciated.

Thank you.
Marco

 

[Philipp Hufnagl]

Have you tried something like dd if=/dev/sda of=dev/newhdd bs=1M ?

 

[_gabriel]

if it's zfs mirror member, the follow chapter "Changing a failed bootable device" from https://pve.proxmox.com/wiki/ZFS_on_Linux