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Force fault a vdev with 'zpool offline -f'

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This patch adds a '-f' option to 'zpool offline' to fault a vdev
instead of bringing it offline.  Unlike the OFFLINE state, the
FAULTED state will trigger the FMA code, allowing for things like
autoreplace and triggering the slot fault LED.  The -f faults
persist across imports, unless they were set with the temporary
(-t) flag.  Both persistent and temporary faults can be cleared
with zpool clear.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tony Hutter <hutter2@llnl.gov>
Closes #6094
This commit is contained in:
Tony Hutter
2017-05-19 12:30:16 -07:00
committed by Brian Behlendorf
parent a32df59e18
commit 4a283c7f77
13 changed files with 266 additions and 29 deletions
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module/zfs/zfs_ioctl.c
+4 -2
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@@ -156,6 +156,7 @@
#include <sys/spa.h>
#include <sys/spa_impl.h>
#include <sys/vdev.h>
#include <sys/vdev_impl.h>
#include <sys/priv_impl.h>
#include <sys/dmu.h>
#include <sys/dsl_dir.h>
@@ -1896,7 +1897,8 @@ zfs_ioc_vdev_set_state(zfs_cmd_t *zc)
case VDEV_STATE_FAULTED:
if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED &&
zc->zc_obj != VDEV_AUX_EXTERNAL)
zc->zc_obj != VDEV_AUX_EXTERNAL &&
zc->zc_obj != VDEV_AUX_EXTERNAL_PERSIST)
zc->zc_obj = VDEV_AUX_ERR_EXCEEDED;
error = vdev_fault(spa, zc->zc_guid, zc->zc_obj);
@@ -4919,7 +4921,7 @@ zfs_ioc_clear(zfs_cmd_t *zc)
vdev_clear(spa, vd);
(void) spa_vdev_state_exit(spa, NULL, 0);
(void) spa_vdev_state_exit(spa, spa->spa_root_vdev, 0);
/*
* Resume any suspended I/Os.