Storage/Disks -> ZFS -> Detail fails to parse 'zfs status' output, UI hangs

[TreyBoudreau]

Today I had the misfortune of having a drive fail on a ZFS volume. One of the two hot-spares did its thing and took over for the failing drive, but PBS has a UI bug where it fails to parse the output of some ZFS command:

unable to parse zfs status config tree - 0: at line 15, in Eof: /dev/disk/by-id/wwn-0x5000c50062d23573-part1 INUSE currently in use ^ (400)

Clicking on the "Details" button for any ZFS pool generates a modal dialog with the above output, and I can only dismiss it via 'ESC'.
If someone on Team Proxmox can tell me the command line to use I can capture the output for a proper bug report before I replace the drive.

 

[shanv]

HI, I believe this is similar to this issue. https://bugzilla.proxmox.com/show_bug.cgi?id=5895 .


EDIT: Could you please also share the zpool status -pP output?

 

[TreyBoudreau]

This looks exactly like the referenced bug:

# zpool status -pP
  pool: DS01
 state: DEGRADED
status: One or more devices are faulted in response to persistent errors.
        Sufficient replicas exist for the pool to continue functioning in a
        degraded state.
action: Replace the faulted device, or use 'zpool clear' to mark the device
        repaired.
  scan: resilvered 70.8G in 00:18:07 with 0 errors on Sun Aug  9 00:55:54 2026
config:

        NAME                                                STATE     READ WRITE CKSUM
        DS01                                                DEGRADED     0     0     0
          raidz2-0                                          DEGRADED     0     0     0
            /dev/disk/by-id/wwn-0x5000c50057b9a1e7-part1    ONLINE       0     0     0
            /dev/disk/by-id/wwn-0x5000c50062d0f533-part1    ONLINE       0     0     0
            /dev/disk/by-id/wwn-0x5000c50062d1032b-part1    ONLINE       0     0     0
            spare-3                                         DEGRADED     0     0     0
              /dev/disk/by-id/wwn-0x5000c50088b63437-part1  FAULTED    100     0     0  too many errors
              /dev/disk/by-id/wwn-0x5000c50062d23573-part1  ONLINE       0     0     0
            /dev/disk/by-id/wwn-0x5000c500a624b0eb-part1    ONLINE       0     0     0
            /dev/disk/by-id/wwn-0x5000c500a62694a7-part1    ONLINE       0     0     0
        logs
          /dev/disk/by-id/wwn-0x5002538a06c3ead0-part1      ONLINE       0     0     0
        spares
          /dev/disk/by-id/wwn-0x5000c50062d23573-part1      INUSE     currently in use
          /dev/disk/by-id/wwn-0x5000c50088b5bf9f-part1      AVAIL   

errors: No known data errors

  pool: DSTMP
 state: ONLINE
  scan: scrub repaired 0B in 00:00:12 with 0 errors on Sun Aug  9 00:24:18 2026
config:

        NAME                                              STATE     READ WRITE CKSUM
        DSTMP                                             ONLINE       0     0     0
          raidz1-0                                        ONLINE       0     0     0
            /dev/disk/by-id/wwn-0x5000c50057b931cf-part1  ONLINE       0     0     0
            /dev/disk/by-id/wwn-0x5000c50062d2485b-part1  ONLINE       0     0     0
            /dev/disk/by-id/wwn-0x5000c500a626a90f-part1  ONLINE       0     0     0
        spares
          /dev/disk/by-id/wwn-0x5000c50062d23573-part1    INUSE     in use by pool 'DS01'
          /dev/disk/by-id/wwn-0x5000c50088b5bf9f-part1    AVAIL   

errors: No known data errors

 

[n.frey]

Hi, there is already a patch for this on the mailing list [0], I updated the referenced issue accordingly.
Note that the issue itself is not resolved by this just yet, please see the explanation in the bug report.

[0] https://lore.proxmox.com/pve-devel/20260603155822.370223-1-n.frey@proxmox.com/T/#t