Note #2025-12-29-001

Srijan Choudhary Srijan Choudhary

Faced a failing disk in my raidz2 ZFS pool today.

Recovery was pretty simple:

  1. Asked the service provider to replace the disk
  2. Find new disk ID etc using:
    lsblk -o NAME,SIZE,MODEL,SERIAL,LABEL,FSTYPE
ls -ltrh /dev/disk/by-id/ata-*
  3. Resilver using:
    sudo zpool replace lake <old_disk_id> <new_disk_id>
  4. Watch status using:
    watch zpool status -v

Re-silvering is still ongoing, but hopefully completes without issues. Will run a manual zpool scrub at the end to make sure everything is okay.

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