mirror of https://github.com/openzfs/zfs.git
117 lines
3.3 KiB
Groff
117 lines
3.3 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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.\" 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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.\" information: Portions Copyright [yyyy] [name of copyright owner]
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.\" CDDL HEADER END
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.\"
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.\" Copyright (c) 2007, Sun Microsystems, Inc. All Rights Reserved.
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.\" Copyright (c) 2012, 2018 by Delphix. All rights reserved.
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.\" Copyright (c) 2012 Cyril Plisko. All Rights Reserved.
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.\" Copyright (c) 2017 Datto Inc.
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.\" Copyright (c) 2018 George Melikov. All Rights Reserved.
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.\" Copyright 2017 Nexenta Systems, Inc.
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.\" Copyright (c) 2017 Open-E, Inc. All Rights Reserved.
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.\"
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.Dd June 2, 2021
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.Dt ZPOOL-SPLIT 8
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.Os
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.
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.Sh NAME
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.Nm zpool-split
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.Nd split devices off ZFS storage pool, creating new pool
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.Sh SYNOPSIS
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.Nm zpool
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.Cm split
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.Op Fl gLlnP
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.Oo Fl o Ar property Ns = Ns Ar value Oc Ns …
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.Op Fl R Ar root
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.Ar pool newpool
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.Oo Ar device Oc Ns …
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.
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.Sh DESCRIPTION
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Splits devices off
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.Ar pool
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creating
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.Ar newpool .
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All vdevs in
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.Ar pool
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must be mirrors and the pool must not be in the process of resilvering.
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At the time of the split,
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.Ar newpool
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will be a replica of
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.Ar pool .
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By default, the
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last device in each mirror is split from
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.Ar pool
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to create
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.Ar newpool .
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.Pp
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The optional device specification causes the specified device(s) to be
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included in the new
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.Ar pool
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and, should any devices remain unspecified,
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the last device in each mirror is used as would be by default.
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.Bl -tag -width Ds
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.It Fl g
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Display vdev GUIDs instead of the normal device names.
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These GUIDs can be used in place of device names for the zpool
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detach/offline/remove/replace commands.
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.It Fl L
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Display real paths for vdevs resolving all symbolic links.
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This can be used to look up the current block device name regardless of the
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.Pa /dev/disk/
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path used to open it.
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.It Fl l
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Indicates that this command will request encryption keys for all encrypted
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datasets it attempts to mount as it is bringing the new pool online.
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Note that if any datasets have
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.Sy keylocation Ns = Ns Sy prompt ,
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this command will block waiting for the keys to be entered.
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Without this flag, encrypted datasets will be left unavailable until the keys are loaded.
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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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split: do not actually perform it.
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Print out the expected configuration of
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.Ar newpool .
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.It Fl P
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Display full paths for vdevs instead of only the last component of
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the path.
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This can be used in conjunction with the
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.Fl L
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flag.
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.It Fl o Ar property Ns = Ns Ar value
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Sets the specified property for
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.Ar newpool .
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See the
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.Xr zpoolprops 7
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manual page for more information on the available pool properties.
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.It Fl R Ar root
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Set
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.Sy altroot
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for
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.Ar newpool
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to
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.Ar root
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and automatically import it.
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.El
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.
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.Sh SEE ALSO
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.Xr zpool-import 8 ,
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.Xr zpool-list 8 ,
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.Xr zpool-remove 8
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