Hi, I'm having an interesting issue. Running 7.3 with a ZFS Pool (RaidZ-2) 8 12TB drives. I had a drive die completely, not a problem I had a spare on hand. Stopped the array, removed the drive from the zfs pool slot and shut down the server. Swapped out the drives and booted back up.

Resilvering started immediately once the array was up, all expected behavior. But I had a "random" drive come up showing Active and Can't Open. Never seen that before... Shut down the machine, rechecked all cables and ensured everything was plugged in correctly and nothing was loose. Booted back up and that drive no longer had the Can't Open issue but now another "random" drive (confirmed different drive via serial number) had the Can't Open status.

At this point I've decided to just let the resilvering process complete before attempting anything else. Is this a hardware fault with maybe the mini-sas to sata cables, the HBA or is this a 7.3 bug?

Thanks!

Edited May 27May 27 by ort84
Incorrectly put 10 12 TB drives, its 8 in total

Please post the diagnostics and a screenshot of where you see that "can't open" error.

As requested, diagnostics attached and screenshot. I see this in the dashboard.

centaurus-diagnostics-20260527-0849.zip

This may be a bug, but you can ignore, it's just a display issue.

@SimonF any idea how to check what is causing that error?

5 hours ago, JorgeB said:

This may be a bug, but you can ignore, it's just a display issue.

@SimonF any idea how to check what is causing that error?

Does it not show on the zfs info?

Disk2 is online, the one being resilvered is disk3

NAME STATE READ WRITE CKSUM

zfs DEGRADED 0 0 0

raidz2-0 DEGRADED 0 0 0

sda1 ONLINE 0 0 0

sdc1 ONLINE 0 0 0

replacing-2 DEGRADED 0 0 0

5034914802460489689 FAULTED 0 0 0 was /dev/sdc1

sdb1 ONLINE 0 0 0 (resilvering)

sde1 ONLINE 0 0 0

sdd1 ONLINE 0 0 0

sdh1 ONLINE 0 0 0

sdg1 ONLINE 0 0 0

sdf1 ONLINE 0 0 0