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Property to allow sets of features to be specified; for compatibility with specific versions / releases / external systems. Influences the behavior of 'zpool upgrade' and 'zpool create'. Initial man page changes and test cases included. Brief synopsis: zpool create -o compatibility=off|legacy|file[,file...] pool vdev... compatibility = off : disable compatibility mode (enable all features) compatibility = legacy : request that no features be enabled compatibility = file[,file...] : read features from specified files. Only features present in *all* files will be enabled on the resulting pool. Filenames may be absolute, or relative to /etc/zfs/compatibility.d or /usr/share/zfs/compatibility.d (/etc checked first). Only affects zpool create, zpool upgrade and zpool status. ABI changes in libzfs: * New function "zpool_load_compat" to load and parse compat sets. * Add "zpool_compat_status_t" typedef for compatibility parse status. * Add ZPOOL_PROP_COMPATIBILITY to the pool properties enum * Add ZPOOL_STATUS_COMPATIBILITY_ERR to the pool status enum An initial set of base compatibility sets are included in cmd/zpool/compatibility.d, and the Makefile for cmd/zpool is modified to install these in $pkgdatadir/compatibility.d and to create symbolic links to a reasonable set of aliases. Reviewed-by: ericloewe Reviewed-by: Matthew Ahrens <mahrens@delphix.com> Reviewed-by: Richard Laager <rlaager@wiktel.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Colm Buckley <colm@tuatha.org> Closes #11468
107 lines
3.2 KiB
Groff
107 lines
3.2 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) 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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.\" Copyright (c) 2021, Colm Buckley <colm@tuatha.org>
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.\"
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.Dd August 9, 2019
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.Dt ZPOOL-UPGRADE 8
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.Os
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.Sh NAME
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.Nm zpool-upgrade
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.Nd Manage version and feature flags of ZFS storage pools
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.Sh SYNOPSIS
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.Nm zpool
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.Cm upgrade
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.Nm zpool
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.Cm upgrade
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.Fl v
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.Nm zpool
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.Cm upgrade
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.Op Fl V Ar version
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.Fl a Ns | Ns Ar pool Ns ...
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.Sh DESCRIPTION
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.Bl -tag -width Ds
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.It Xo
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.Nm zpool
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.Cm upgrade
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.Xc
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Displays pools which do not have all supported features enabled and pools
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formatted using a legacy ZFS version number.
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These pools can continue to be used, but some features may not be available.
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Use
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.Nm zpool Cm upgrade Fl a
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to enable all features on all pools. (If a pool has specified compatibility
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feature sets using the
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.Fl o Ar compatibility
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property, only the features present in all requested compatibility sets will
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be enabled on that pool.)
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.It Xo
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.Nm zpool
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.Cm upgrade
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.Fl v
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.Xc
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Displays legacy ZFS versions supported by the current software.
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See
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.Xr zpool-features 5
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for a description of feature flags features supported by the current software.
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.It Xo
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.Nm zpool
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.Cm upgrade
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.Op Fl V Ar version
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.Fl a Ns | Ns Ar pool Ns ...
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.Xc
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Enables all supported features on the given pool. (If the pool has specified
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compatibility feature sets using the
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.Fl o Ar compatibility
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property, only the features present in all requested compatibility sets will be
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enabled.)
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Once this is done, the pool will no longer be accessible on systems that do not
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support feature flags.
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See
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.Xr zpool-features 5
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for details on compatibility with systems that support feature flags, but do not
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support all features enabled on the pool.
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.Bl -tag -width Ds
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.It Fl a
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Enables all supported features (from specified compatibility sets, if any) on all
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pools.
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.It Fl V Ar version
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Upgrade to the specified legacy version.
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If the
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.Fl V
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flag is specified, no features will be enabled on the pool.
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This option can only be used to increase the version number up to the last
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supported legacy version number.
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.El
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.El
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.Sh SEE ALSO
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.Xr zpool-features 5 ,
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.Xr zpoolconcepts 8 ,
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.Xr zpoolprops 8 ,
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.Xr zpool-history 8
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