mirror_zfs/lib/libzfs
Rob N 4647353c8b
status: report pool suspension state under failmode=continue
When failmode=continue is set and the pool suspends, both 'zpool status'
and the 'zfs/pool/state' kstat ignore it and report the normal vdev tree
state. There's no clear indicator that the pool is suspended. This is
unlike suspend in failmode=wait, or suspend due to MMP check failure,
which both report "SUSPENDED" explicitly.

This commit changes it so SUSPENDED is reported for failmode=continue
the same as for other modes.

Rationale:

The historical behaviour of failmode=continue is roughly, "press on as
though all is well". To this end, the fact that the pool had suspended
was not shown, to maintain the façade that all is well.

Its unclear why hiding this information was considered appropriate. One
possibility is that it was expected that a true pool fault would always
be reported as DEGRADED or FAULTED, and that the pool could not suspend
without these happening.

That is not necessarily true, as vdev health and suspend state are only
loosely connected, such that a pool in (apparent) good health can be
suspended for good reasons, and of course a degraded pool does not lead
to suspension. Even if that expectation were true, there's still a
difference in urgency - a degraded pool may not need to be attended to
for hours, while a suspended pool is most often unusable until an
operator intervenes.

An operator that has set failmode=continue has presumably done so
because their workload is one that can continue to operate in a useful
way when the pool suspends. In this case the operator still needs a
clear indicator that there is a problem that needs attending to.

Sponsored-by: Klara, Inc.
Sponsored-by: Wasabi Technology, Inc.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rob Norris <rob.norris@klarasystems.com>
Closes #15297
2023-09-20 16:56:45 -07:00
..
os nvpair: Constify string functions 2023-03-14 15:25:50 -07:00
.gitignore Clean up lib dependencies 2020-07-10 14:26:00 -07:00
libzfs_changelist.c Improve the handling of sharesmb,sharenfs properties 2023-09-19 17:16:14 -07:00
libzfs_config.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
libzfs_crypto.c libzfs: add v2 iterator interfaces 2023-04-10 11:53:02 -07:00
libzfs_dataset.c Fix remount when setting multiple properties. 2023-06-30 08:36:43 -07:00
libzfs_diff.c Add more ANSI colors to libzfs 2023-03-24 10:21:19 -07:00
libzfs_impl.h nvpair: Constify string functions 2023-03-14 15:25:50 -07:00
libzfs_import.c nvpair: Constify string functions 2023-03-14 15:25:50 -07:00
libzfs_iter.c libzfs: add v2 iterator interfaces 2023-04-10 11:53:02 -07:00
libzfs_mount.c Relax error reporting in zpool import and zpool split 2023-09-01 17:25:11 -07:00
libzfs_pool.c status: report pool suspension state under failmode=continue 2023-09-20 16:56:45 -07:00
libzfs_sendrecv.c libzfs: sendrecv: send_progress_thread: handle SIGINFO/SIGUSR1 2023-08-08 09:35:35 -07:00
libzfs_status.c nvpair: Constify string functions 2023-03-14 15:25:50 -07:00
libzfs_util.c Teach zpool scrub to scrub only blocks in error log 2023-05-18 11:59:42 -07:00
libzfs.abi Increase limit of redaction list by using spill block 2023-08-26 11:34:43 -07:00
libzfs.pc.in Spruce up pkg-config files for libzfs/libzfs_core 2020-09-04 11:11:18 -07:00
libzfs.suppr Library ABI tracking with abigail 2020-11-17 09:18:52 -08:00
Makefile.am libzfs: sendrecv: send_progress_thread: handle SIGINFO/SIGUSR1 2023-08-08 09:35:35 -07:00
THIRDPARTYLICENSE.openssl Fix typos in lib/ 2019-09-02 17:53:27 -07:00
THIRDPARTYLICENSE.openssl.descrip Encryption patch follow-up 2017-10-11 16:54:48 -04:00