- Urgent
BACKSTORY:
Using a new NAS running Unraid 7rc1, I created a ZFS pool and SLOG subpool.
PROBLEM:
Later, The nvme in my zfs SLOG subpool broke. Upon booting, Unraid shows the missing slog device, but the gui does not allow replacing the device or deleting the subpool. Attempting to start the pool with the missing slog device fails, with unraid noting the missing device.
IMPACT:
It should be expected that drives will fail over time. The unraid gui should make managing and maintaining pools as easy as creating them.
PROPOSED SOLUTION:
The GUI should let people edit zfs pools/subpools, and delete subpools like SLOG and L2ARC that are optional.
WORKAROUNDS:
See my reply dated 2024-12-13: Because unraid seems to pre-validate the pool before handing off to linux, if there pool is in an invalid state then linux won't see it, and it won't be editable via the zpool cmd. however when the pool is in a failed state it also can not be edited in the unraid gui.
there seem to be two workarounds to the problem described:
-
drop into terminal and manually edit/delete config under/boot/config/pools/then reboot -
using the Unraid Gui, delete the entire zfs pool, and then manually construct a replacement omitting the problematic device/subpools.