mirror_zfs/cmd/zed
Don Brady c1c26a77ff Add slow disk diagnosis to ZED
Slow disk response times can be indicative of a failing drive. ZFS
currently tracks slow I/Os (slower than zio_slow_io_ms) and generates
events (ereport.fs.zfs.delay).  However, no action is taken by ZED,
like is done for checksum or I/O errors.  This change adds slow disk
diagnosis to ZED which is opt-in using new VDEV properties:
  VDEV_PROP_SLOW_IO_N
  VDEV_PROP_SLOW_IO_T

If multiple VDEVs in a pool are undergoing slow I/Os, then it skips
the zpool_vdev_degrade().

Sponsored-By: OpenDrives Inc.
Sponsored-By: Klara Inc.
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Allan Jude <allan@klarasystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Co-authored-by: Rob Wing <rob.wing@klarasystems.com>
Signed-off-by: Don Brady <don.brady@klarasystems.com>
Closes #15469
2024-04-29 13:50:05 -07:00
..
agents Add slow disk diagnosis to ZED 2024-04-29 13:50:05 -07:00
zed.d Add Ntfy notification support to ZED 2024-02-12 14:32:11 -08:00
.gitignore Initial implementation of zed (ZFS Event Daemon) 2014-04-02 13:10:03 -07:00
Makefile.am Replace EXTRA_DIST with dist_noinst_DATA 2022-05-26 09:24:50 -07:00
zed_conf.c Fix usage of zed_log_msg() and zfs_panic_recover() 2022-09-19 17:32:18 -07:00
zed_conf.h Prevent zevent list from consuming all of kernel memory 2022-08-22 12:36:22 -07:00
zed_disk_event.c nvpair: Constify string functions 2023-03-14 15:25:50 -07:00
zed_disk_event.h Bring over illumos ZFS FMA logic -- phase 1 2016-09-01 11:39:45 -07:00
zed_event.c zed: misc vdev_enc_sysfs_path fixes 2024-01-29 15:11:56 -08:00
zed_event.h Replace ZoL with OpenZFS where applicable 2021-05-07 17:20:37 -07:00
zed_exec.c Handle possible null pointers from malloc/strdup/strndup() 2022-10-06 17:18:40 -07:00
zed_exec.h Replace ZoL with OpenZFS where applicable 2021-05-07 17:20:37 -07:00
zed_file.c Replace ZoL with OpenZFS where applicable 2021-05-07 17:20:37 -07:00
zed_file.h Replace ZoL with OpenZFS where applicable 2021-05-07 17:20:37 -07:00
zed_log.c Replace ZoL with OpenZFS where applicable 2021-05-07 17:20:37 -07:00
zed_log.h Reduce false positives from Static Analyzers 2022-09-30 15:30:12 -07:00
zed_strings.c Replace ZoL with OpenZFS where applicable 2021-05-07 17:20:37 -07:00
zed_strings.h Replace ZoL with OpenZFS where applicable 2021-05-07 17:20:37 -07:00
zed.c zed: main: fix unused, remove argsused 2021-12-21 12:05:11 -08:00
zed.h Replace ZoL with OpenZFS where applicable 2021-05-07 17:20:37 -07:00