Files
mesh-catalog/modules/zfs/cmd/zfs-tools/testdata/arcstats.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mesh/delivery superseded: a newer head of the same pull request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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13 1 0x01 147 39984 7071415536 284772115112591
name type data
hits 4 908234567
iohits 4 1234567
misses 4 95765433
demand_data_hits 4 500000000
demand_data_misses 4 50000000
demand_metadata_hits 4 300000000
demand_metadata_misses 4 10000000
c 4 16823304192
c_min 4 1051456512
c_max 4 33646608384
size 4 16798000128
l2_hits 4 1200000
l2_misses 4 3600000
l2_size 4 412316860416
l2_asize 4 398000000000