zpool-create —
create ZFS storage pool
| zpool |
create
[-dfn]
[-m
mountpoint]
[-o
property=value]…
[-o
feature@feature=value]
[-o
compatibility=off|legacy|file[,file]…]
[-O
file-system-property=value]…
[-R
root]
[-t
tname]
pool
vdev… |
Creates a new storage pool containing the virtual devices specified on the
command line. The pool name must begin with a letter, and can only contain
alphanumeric characters as well as the underscore
(“
_”), dash
(“
-”), colon
(“
:”), space
(“
”), and period
(“
.”). The pool names
mirror,
raidz,
draid,
spare and
log are reserved, as are names beginning with
mirror,
raidz,
draid, and
spare.
The
vdev specification is described in the
Virtual Devices section
of
zpoolconcepts(7).
The command attempts to verify that each device specified is accessible and not
currently in use by another subsystem. However this check is not robust enough
to detect simultaneous attempts to use a new device in different pools, even
if
multihost=
enabled. The administrator must ensure, that
simultaneous invocations of any combination of
zpool replace,
zpool create,
zpool add, or
zpool labelclear, do
not refer to the same device. Using the same device in two pools will result
in pool corruption.
There are some uses, such as being currently mounted, or specified as the
dedicated dump device, that prevents a device from ever being used by ZFS.
Other uses, such as having a preexisting UFS file system, can be overridden
with
-f.
The command also checks that the replication strategy for the pool is
consistent. An attempt to combine redundant and non-redundant storage in a
single pool, or to mix disks and files, results in an error unless
-f is specified. The use of differently-sized
devices within a single raidz or mirror group is also flagged as an error
unless
-f is specified.
Unless the
-R option is specified, the default
mount point is
/pool. The mount
point must not exist or must be empty, or else the root dataset will not be
able to be be mounted. This can be overridden with the
-m option.
By default all supported features are enabled on the new pool. The
-d option and the
-o
compatibility property (e.g
-o
compatibility=
2020)
can be used to restrict the features that are enabled, so that the pool can be
imported on other releases of ZFS.
- -d
- Do not enable any features on the new pool. Individual
features can be enabled by setting their corresponding properties to
enabled with -o.
See zpool-features(7) for details about
feature properties.
- -f
- 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.
-
-m
mountpoint
- Sets the mount point for the root dataset. The default
mount point is /pool or
altroot/pool if
altroot is specified. The mount point must be
an absolute path, legacy, or
none. For more information on dataset mount
points, see zfsprops(7).
- -n
- Displays the configuration that would be used without
actually creating the pool. The actual pool creation can still fail due to
insufficient privileges or device sharing.
-
-o
property=value
- Sets the given pool properties. See
zpoolprops(7) for a list of valid properties
that can be set.
-
-o
compatibility=off|legacy|file[,file]…
- Specifies compatibility feature sets. See
zpool-features(7) for more information about
compatibility feature sets.
-
-o
feature@feature=value
- Sets the given pool feature. See the
zpool-features(7) section for a list of valid
features that can be set. Value can be either disabled or enabled.
-
-O
file-system-property=value
- Sets the given file system properties in the root file
system of the pool. See zfsprops(7) for a
list of valid properties that can be set.
-
-R
root
- Equivalent to -o
cachefile=none
-o
altroot=root
-
-t
tname
- Sets the in-core pool name to
tname while the on-disk name will be the
name specified as pool. This will set the
default of the cachefile property to
none. This is intended to handle name space
collisions when creating pools for other systems, such as virtual machines
or physical machines whose pools live on network block devices.
zpool-destroy(8),
zpool-export(8),
zpool-import(8)