|ZPOOL-ADD(8)||System Manager's Manual||ZPOOL-ADD(8)|
add vdevs to ZFS storage pool
] pool vdev…
-foption, and the device checks performed are described in the
- Forces use of vdevs, even if they appear in use or specify a conflicting replication level. Not all devices can be overridden in this manner.
- Display vdev, GUIDs instead of the normal device names. These GUIDs can be used in place of device names for the zpool detach/offline/remove/replace commands.
- Display real paths for vdevs resolving all symbolic links. This can be used to look up the current block device name regardless of the /dev/disk path used to open it.
- Displays the configuration that would be used without actually adding the vdevs. The actual pool creation can still fail due to insufficient privileges or device sharing.
- Display real paths for vdevs instead of
only the last component of the path. This can be used in conjunction with
- Sets the given pool properties. See the zpoolprops(7) manual page for a list of valid properties that can be set. The only property supported at the moment is ashift.
Example 1: Adding a Mirror to a ZFS Storage PoolThe following command adds two mirrored disks to the pool tank, assuming the pool is already made up of two-way mirrors. The additional space is immediately available to any datasets within the pool.
addtank mirror sda sdb
Example 2: Adding Cache Devices to a ZFS PoolThe following command adds two disks for use as cache devices to a ZFS storage pool:
Once added, the cache devices gradually fill with content from main memory. Depending on the size of your cache devices, it could take over an hour for them to fill. Capacity and reads can be monitored using the
addpool cache sdc sdd
iostatsubcommand as follows:
zpool-attach(8), zpool-import(8), zpool-initialize(8), zpool-online(8), zpool-remove(8)
|March 16, 2022||Debian|