Files
mesh-catalog/modules/zfs/cmd/zfs-tools/testdata/zpool-status-degraded.txt
T
jochen 7c8497225d
mesh/merge-gate pass: builds new: modules/zfs, sent nowhere; no bus step; every machine composes with the change as it did without (4 of 4 compose)
mesh/repo-check fail: its merge-check.sh failed: --- FAIL: TestASnapshotIsAnsweredFromTheListAfterwardsAndRecorded (0.00s)
mesh/delivery superseded: a newer head of the same pull request
Add the zfs module, so the mesh can see the home server's pools and snapshot a dataset
The home server's pool holds the operator's media library, and no mesh tool could say whether it is
healthy, how full it is, when it was last scrubbed or what snapshots exist; the only way was a login.
This module reads all of it with fixed zfs and zpool commands (list, get, status, iostat, events,
history) and has one act, zfs_snapshot, which only adds a snapshot: refused for an unknown dataset, a
name outside [A-Za-z0-9._-], an existing snapshot or no why; run as sudo -n zfs snapshot -- ds@name;
answered from zfs list afterwards, with any other snapshot that came or went meanwhile; recorded as the
event snapshot.taken. No destroy, rollback, set or send exists, and a test holds every command to its
verb.

Health (ADR 0240): zfs_health on the watch process, unhealthy for a pool not ONLINE, device or data
errors, a pool past 90 % full or no ZFS at all; past 80 % and a scrub older than 35 days are warnings.
Beside it, the event follower (zpool events -f, as root) keeps ZFS's errors in its journal past a
reboot and is judged by its unit, the check the module does not run itself. No seat (ADR 0121), no
package: ZFS is the machine's.
2026-10-09 00:11:31 +02:00

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pool: tank
state: DEGRADED
status: One or more devices is currently being resilvered. The pool will
continue to function, possibly in a degraded state.
action: Wait for the resilver to complete.
scan: resilver in progress since Thu Oct 8 21:02:17 2026
9876543210123 / 28797591658086 scanned at 1101004800/s, 6543210987654 / 28797591658086 issued at 734003200/s
1088516226 resilvered, 22.72% done, 08:25:13 to go
config:
NAME STATE READ WRITE CKSUM
tank DEGRADED 0 0 0
raidz2-0 DEGRADED 0 0 0
ata-WDC_WD120EFBX-68B0EN0_D7JA0001 ONLINE 0 0 0
spare-1 DEGRADED 0 0 0
ata-WDC_WD120EFBX-68B0EN0_D7JA0002 FAULTED 12 107 3 too many errors
ata-WDC_WD120EFBX-68B0EN0_D7JA0009 ONLINE 0 0 0 (resilvering)
ata-WDC_WD120EFBX-68B0EN0_D7JA0003 ONLINE 0 0 0
ata-WDC_WD120EFBX-68B0EN0_D7JA0004 ONLINE 0 0 0
spares
ata-WDC_WD120EFBX-68B0EN0_D7JA0009 INUSE currently in use
errors: 2 data errors, use '-v' for a list