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zpool: Add slot power control, print power status

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Add `zpool` flags to control the slot power to drives.  This assumes
your SAS or NVMe enclosure supports slot power control via sysfs.

The new `--power` flag is added to `zpool offline|online|clear`:

    zpool offline --power <pool> <device>    Turn off device slot power
    zpool online --power <pool> <device>     Turn on device slot power
    zpool clear --power <pool> [device]      Turn on device slot power

If the ZPOOL_AUTO_POWER_ON_SLOT env var is set, then the '--power'
option is automatically implied for `zpool online` and `zpool clear`
and does not need to be passed.

zpool status also gets a --power option to print the slot power status.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Mart Frauenlob <AllKind@fastest.cc>
Signed-off-by: Tony Hutter <hutter2@llnl.gov>
Closes #15662
This commit is contained in:
Tony Hutter
2023-12-21 10:53:16 -08:00
committed by GitHub
parent 6930ecbb75
commit a9520e6e59
16 changed files with 875 additions and 65 deletions
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include/libzfs.h
+3
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@@ -319,6 +319,9 @@ _LIBZFS_H int zpool_vdev_remove_wanted(zpool_handle_t *, const char *);
_LIBZFS_H int zpool_vdev_fault(zpool_handle_t *, uint64_t, vdev_aux_t);
_LIBZFS_H int zpool_vdev_degrade(zpool_handle_t *, uint64_t, vdev_aux_t);
_LIBZFS_H int zpool_vdev_set_removed_state(zpool_handle_t *, uint64_t,
vdev_aux_t);
_LIBZFS_H int zpool_vdev_clear(zpool_handle_t *, uint64_t);
_LIBZFS_H nvlist_t *zpool_find_vdev(zpool_handle_t *, const char *, boolean_t *,