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Add knob to disable slow io notifications

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Introduce a new vdev property `VDEV_PROP_SLOW_IO_REPORTING` that
allows users to disable notifications for slow devices.
This prevents ZED and/or ZFSD from degrading the pool due to slow
I/O.

Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Mariusz Zaborski <oshogbo@FreeBSD.org>
Closes 17477
This commit is contained in:
Mariusz Zaborski
2025-11-11 19:42:17 +01:00
committed by Brian Behlendorf
parent 41878d57ea
commit 1e8c96d7d5
10 changed files with 127 additions and 32 deletions
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module/zcommon/zpool_prop.c
+3
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@@ -481,6 +481,9 @@ vdev_prop_init(void)
zprop_register_index(VDEV_PROP_FAILFAST, "failfast", B_TRUE,
PROP_DEFAULT, ZFS_TYPE_VDEV, "on | off", "FAILFAST", boolean_table,
sfeatures);
zprop_register_index(VDEV_PROP_SLOW_IO_EVENTS, "slow_io_events",
B_TRUE, PROP_DEFAULT, ZFS_TYPE_VDEV, "on | off",
"SLOW_IO_EVENTS", boolean_table, sfeatures);
/* hidden properties */
zprop_register_hidden(VDEV_PROP_NAME, "name", PROP_TYPE_STRING,