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1e36af8c7b
Use proper names (i.e. zfs-allow and zpool-add) in NAME subsections of zfs/zpool subcommands instead of current "pretty-printed" ones as makewhatis utilities (or some implementations of it, namely the one from mandoc suite used in FreeBSD) look not only at the document title but also in NAME subsection, adding zfs(8)/zpool(8) to search results which is not correct. (Common sense and other utilities splitting subcommands in multiple man pages, e.g. git, do the same.) Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: xtouqh <xtouqh@hotmail.com> Closes #11086
245 lines
6.5 KiB
Groff
245 lines
6.5 KiB
Groff
.\"
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.\" CDDL HEADER START
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.\"
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.\" The contents of this file are subject to the terms of the
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.\" Common Development and Distribution License (the "License").
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.\" You may not use this file except in compliance with the License.
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.\"
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.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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.\" or http://www.opensolaris.org/os/licensing.
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.\" See the License for the specific language governing permissions
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.\" and limitations under the License.
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.\"
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.\" When distributing Covered Code, include this CDDL HEADER in each
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.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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.\" If applicable, add the following below this CDDL HEADER, with the
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.\" fields enclosed by brackets "[]" replaced with your own identifying
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.\" information: Portions Copyright [yyyy] [name of copyright owner]
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.\"
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.\" CDDL HEADER END
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.\"
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.\"
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.\" Copyright (c) 2009 Sun Microsystems, Inc. All Rights Reserved.
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.\" Copyright 2011 Joshua M. Clulow <josh@sysmgr.org>
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.\" Copyright (c) 2011, 2019 by Delphix. All rights reserved.
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.\" Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
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.\" Copyright (c) 2014, Joyent, Inc. All rights reserved.
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.\" Copyright (c) 2014 by Adam Stevko. All rights reserved.
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.\" Copyright (c) 2014 Integros [integros.com]
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.\" Copyright 2019 Richard Laager. All rights reserved.
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.\" Copyright 2018 Nexenta Systems, Inc.
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.\" Copyright 2019 Joyent, Inc.
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.\"
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.Dd June 30, 2019
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.Dt ZFS-CREATE 8
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.Os
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.Sh NAME
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.Nm zfs-create
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.Nd Creates a new ZFS file system.
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.Sh SYNOPSIS
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.Nm zfs
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.Cm create
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.Op Fl Pnpv
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.Oo Fl o Ar property Ns = Ns Ar value Oc Ns ...
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.Ar filesystem
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.Nm zfs
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.Cm create
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.Op Fl ps
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.Op Fl b Ar blocksize
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.Oo Fl o Ar property Ns = Ns Ar value Oc Ns ...
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.Fl V Ar size Ar volume
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.Sh DESCRIPTION
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.Bl -tag -width ""
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.It Xo
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.Nm zfs
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.Cm create
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.Op Fl Pnpv
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.Oo Fl o Ar property Ns = Ns Ar value Oc Ns ...
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.Ar filesystem
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.Xc
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Creates a new ZFS file system.
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The file system is automatically mounted according to the
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.Sy mountpoint
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property inherited from the parent.
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.Bl -tag -width "-o"
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.It Fl o Ar property Ns = Ns Ar value
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Sets the specified property as if the command
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.Nm zfs Cm set Ar property Ns = Ns Ar value
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was invoked at the same time the dataset was created.
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Any editable ZFS property can also be set at creation time.
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Multiple
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.Fl o
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options can be specified.
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An error results if the same property is specified in multiple
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.Fl o
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options.
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.It Fl p
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Creates all the non-existing parent datasets.
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Datasets created in this manner are automatically mounted according to the
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.Sy mountpoint
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property inherited from their parent.
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Any property specified on the command line using the
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.Fl o
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option is ignored.
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If the target filesystem already exists, the operation completes successfully.
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.It Fl n
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Do a dry-run
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.Pq Qq No-op
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creation.
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No datasets will be created.
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This is useful in conjunction with the
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.Fl v
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or
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.Fl P
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flags to validate properties that are passed via
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.Fl o
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options and those implied by other options.
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The actual dataset creation can still fail due to insufficient privileges or
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available capacity.
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.It Fl P
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Print machine-parsable verbose information about the created dataset.
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Each line of output contains a key and one or two values, all separated by tabs.
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The
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.Sy create_ancestors
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and
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.Sy create
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keys have
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.Em filesystem
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as their only value.
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The
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.Sy create_ancestors
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key only appears if the
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.Fl p
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option is used.
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The
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.Sy property
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key has two values, a property name that property's value.
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The
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.Sy property
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key may appear zero or more times, once for each property that will be set local
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to
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.Em filesystem
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due to the use of the
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.Fl o
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option.
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.It Fl v
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Print verbose information about the created dataset.
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.El
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.It Xo
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.Nm zfs
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.Cm create
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.Op Fl ps
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.Op Fl b Ar blocksize
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.Oo Fl o Ar property Ns = Ns Ar value Oc Ns ...
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.Fl V Ar size Ar volume
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.Xc
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Creates a volume of the given size.
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The volume is exported as a block device in
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.Pa /dev/zvol/path ,
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where
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.Em path
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is the name of the volume in the ZFS namespace.
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The size represents the logical size as exported by the device.
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By default, a reservation of equal size is created.
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.Pp
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.Ar size
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is automatically rounded up to the nearest multiple of the
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.Sy blocksize .
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.Bl -tag -width "-b"
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.It Fl b Ar blocksize
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Equivalent to
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.Fl o Sy volblocksize Ns = Ns Ar blocksize .
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If this option is specified in conjunction with
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.Fl o Sy volblocksize ,
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the resulting behavior is undefined.
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.It Fl o Ar property Ns = Ns Ar value
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Sets the specified property as if the
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.Nm zfs Cm set Ar property Ns = Ns Ar value
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command was invoked at the same time the dataset was created.
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Any editable ZFS property can also be set at creation time.
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Multiple
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.Fl o
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options can be specified.
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An error results if the same property is specified in multiple
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.Fl o
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options.
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.It Fl p
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Creates all the non-existing parent datasets.
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Datasets created in this manner are automatically mounted according to the
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.Sy mountpoint
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property inherited from their parent.
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Any property specified on the command line using the
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.Fl o
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option is ignored.
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If the target filesystem already exists, the operation completes successfully.
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.It Fl s
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Creates a sparse volume with no reservation.
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See
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.Sy volsize
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in the
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.Em Native Properties
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section of
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.Xr zfsprops 8
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for more information about sparse volumes.
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.It Fl n
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Do a dry-run
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.Pq Qq No-op
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creation.
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No datasets will be created.
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This is useful in conjunction with the
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.Fl v
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or
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.Fl P
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flags to validate properties that are passed via
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.Fl o
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options and those implied by other options.
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The actual dataset creation can still fail due to insufficient privileges or
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available capacity.
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.It Fl P
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Print machine-parsable verbose information about the created dataset.
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Each line of output contains a key and one or two values, all separated by tabs.
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The
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.Sy create_ancestors
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and
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.Sy create
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keys have
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.Em volume
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as their only value.
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The
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.Sy create_ancestors
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key only appears if the
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.Fl p
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option is used.
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The
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.Sy property
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key has two values, a property name that property's value.
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The
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.Sy property
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key may appear zero or more times, once for each property that will be set local
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to
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.Em volume
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due to the use of the
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.Fl b
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or
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.Fl o
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options, as well as
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.Sy refreservation
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if the volume is not sparse.
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.It Fl v
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Print verbose information about the created dataset.
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.El
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.El
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.Ss ZFS Volumes as Swap
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ZFS volumes may be used as swap devices. After creating the volume with the
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.Nm zfs Cm create Fl V
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command set up and enable the swap area using the
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.Xr mkswap 8
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and
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.Xr swapon 8
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commands. Do not swap to a file on a ZFS file system. A ZFS swap file
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configuration is not supported.
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.Sh SEE ALSO
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.Xr zfs-destroy 8 ,
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.Xr zfs-list 8 ,
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.Xr zpool-create 8
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