Proxmox VE with ZFS RAID1

Z

z99

New Member
Jan 25, 2024
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Hello,


I installed Proxmox VE using two disks with ZFS RAID1 (mirror) for lab testing
From my testing:
  • If I unplug or fail disk 2, the system still works fine and Proxmox is accessible.
  • But if I unplug or fail disk 1, the system will not boot and Proxmox becomes inaccessible, even though disk 2 is still healthy.
My expectation with ZFS mirror is that the system should still be accessible as long as one disk is available.

Is there a way to configure Proxmox/ZFS so that the node can still boot and run from the second disk if disk 1 fails?
Or is this a limitation related to bootloader/BIOS configuration instead of ZFS itself?
Thanks in advance for any guidance.
 
You should look for the parameters In the BIOS settings that determines the sequence of devices used for booting. For example, there's the first CD-ROM, then the first disk, the second disk...
So, if there is no CD-ROM, the boot will be from the first disk. If it is impossible from the first disk, then the second disk. But if the boot from the first disk freezes, then it will remain frozen and the system will not start.
To access the Boot Manager on a Dell computer, power on the system and repeatedly press the F12 key at the Dell logo screen during startup to open the One Time Boot Menu. If a Dell PowerEdge server is used, you may need to press the F11 key instead. The Boot Manager lets you choose a temporary boot device or access other utilities like System Setup.
 
does your system do efi boot or grub boot ? efi boot can very picky , i have a LOT more problems with efi boot then with traditional bios/grub boot
 
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