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
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dracut.zfs.7	contrib: dracut: fix race with root=zfs:dset when necessities required	2023-03-31 09:47:48 -07:00
vdevprops.7	Add slow disk diagnosis to ZED	2024-04-29 13:50:05 -07:00
zfsconcepts.7	zfsconcepts: add description of block cloning	2023-10-07 09:08:20 -07:00
zfsprops.7	Add '-u' - nomount flag for zfs set	2023-10-03 15:41:46 -07:00
zpool-features.7	Allow block cloning across encrypted datasets	2024-01-08 16:11:39 -08:00
zpoolconcepts.7	Add slow disk diagnosis to ZED	2024-04-29 13:50:05 -07:00
zpoolprops.7	Add support for zpool user properties	2023-04-21 10:20:36 -07:00