Replacing disk is stuck after resilvering process what should i do next?

TrueNAS General
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1

I got stuck on replacing fault drive.
One of disk was fault and pool was in degraded state.
I remove faulted drive and put new one, then was a resilvering process. After that i still have in vdev gui Replacing. What shoul i do next?
zpool status command is look like this

truenas_admin@truenas[~]$ zpool status -v
pool: archive
state: DEGRADED
scan: resilvered 103G in 18:32:00 with 0 errors on Thu Mar 19 09:30:11 2026
config:

    NAME                                        STATE     READ WRITE CKSUM
    archive                                     DEGRADED     0     0     0
      raidz1-0                                  DEGRADED     0     0     0
        b22559ba-9388-11e9-b058-001b21bab3f4    ONLINE       0     0     0
        replacing-1                             DEGRADED     0 27.8M     0
          16865979068844473361                  OFFLINE      0     0     0  was /dev/sdb2
          f029e34c-465c-4f41-ae4e-fdd89c7c723a  FAULTED      3     4     0  too many errors
        ba2df728-9388-11e9-b058-001b21bab3f4    ONLINE       0     0     0
        bd984739-9388-11e9-b058-001b21bab3f4    ONLINE       0     0     0
    cache
      2ebbcf5d-c0e9-40fc-85af-c6f7eeb2712d      ONLINE       0     0     0

errors: No known data errors

pool: boot-pool
state: ONLINE
scan: scrub repaired 0B in 00:00:05 with 0 errors on Thu Mar 19 03:45:07 2026
config:

    NAME         STATE     READ WRITE CKSUM
    boot-pool    ONLINE       0     0     0
      nvme1n1p3  ONLINE       0     0     0

Vdev gui looks like this

REPLACING

DEGRADED state

29,108,111 Errors

sda (old disk!)

FAULTED state

10.91 TiB

7 Errors

sdb (new disk!)

OFFLINE state

10.91 TiB

No errors

Can anybody help with this?

2

Welcome to TrueNAS and it’s forums!

This clearly shows that the replacement disk failed / faulted.

Some hard drives, especially desktop or laptop drives, are less suitable for use with ZFS. Specifically any SMR, Shingled Magnetic Recording type. You don’t specify what model of drive, nor other hardware information.

Please supply make and model of all the drives, and how they are connected to the system board. Other hardware details would also be useful, like disk controller, (builtin SATA or LSI HBA?).

3

Thank for the answer, faulted drive is exos x14 12tb ST12000NM0008 was replaced with Exos x14 12TB ST12000NM0558 (it says HSMR on drive)
Usual Sata connection on MB GIGABYTE B550I AORUS PRO AX
I was wondering what should i do next with this situation

4

Well, you can remove the “replacement” drive and test it. It is generally recommended to test new drives before use, to avoid early drive failures. This does occur often enough that we see it here in the forums.

If the drive tests bad, send it back for warranty replacement. If it tests good, you might have another issue, like SATA cable or system board SATA connector. Either can break in a way that it is not obvious.

5

There seems to be a number of slightly different definitions of HSMR but It seems that these are SMR drives formatted as CMR (Hybrid SMR) by default but can be changed to SMR with special drivers.

Here is a post with a discussion on them. Are Seagate EXOS X14 HSMR drives TrueNAS ready?