ZPOOL-OFFLINE(8) System Manager's Manual ZPOOL-OFFLINE(8)

# [NAME](#NAME)

`zpool-offline` — take physical devices offline in ZFS storage pool

# [SYNOPSIS](#SYNOPSIS)

`zpool` `offline` \[`-`**-power**|\[`-`**ft**]] `pool` `device`…

`zpool` `online` \[`-`**-power**] \[`-`**e**] `pool` `device`…

# [DESCRIPTION](#DESCRIPTION)

`zpool` `offline` \[`-`**-power**|\[`-`**ft**]] `pool` `device`…

Takes the specified physical device offline. While the `device` is offline, no attempt is made to read or write to the device. This command is not applicable to spares.

[`--power`](#power)

Power off the device's slot in the storage enclosure. This flag currently works on Linux only

[`-f`](#f)

Force fault. Instead of offlining the disk, put it into a faulted state. The fault will persist across imports unless the `-t` flag was specified.

[`-t`](#t)

Temporary. Upon reboot, the specified physical device reverts to its previous state.

`zpool` `online` \[`--power`] \[`-e`] `pool` `device`…

Brings the specified physical device online. This command is not applicable to spares.

[`--power`](#power~2)

Power on the device's slot in the storage enclosure and wait for the device to show up before attempting to online it. Alternatively, you can set the [**ZPOOL\_AUTO\_POWER\_ON\_SLOT**](#ZPOOL_AUTO_POWER_ON_SLOT) environment variable to always enable this behavior. This flag currently works on Linux only

[`-e`](#e)

Expand the device to use all available space. If the device is part of a mirror or raidz then all devices must be expanded before the new space will become available to the pool.

# [SEE ALSO](#SEE_ALSO)

[zpool-detach(8)](/man/os/zfs/zpool-detach.8), [zpool-remove(8)](/man/os/zfs/zpool-remove.8), [zpool-reopen(8)](/man/os/zfs/zpool-reopen.8), [zpool-resilver(8)](/man/os/zfs/zpool-resilver.8)

December 21, 2023 OpenZFS

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Document: zpool-online(8) from zfs 2.4.4-r3 (Chainguard OS)
Source: https://github.com/openzfs/zfs