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53245fe337
The error returned by `zpool remove` when the encryption keys aren't loaded isn't very helpful. Furthermore, the man pages make no mention that the keys need to be loaded. This change doesn't resolve the error message but it does update the man page to mention this requirement. Authored-by: grodik <pat@litke.dev> Reviewed-by: Matthew Ahrens <mahrens@delphix.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #10939 Closes #10948
112 lines
3.3 KiB
Groff
112 lines
3.3 KiB
Groff
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.\" Common Development and Distribution License (the "License").
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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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.\"
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.Dd August 9, 2019
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.Dt ZPOOL-REMOVE 8
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.Os
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.Sh NAME
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.Nm zpool Ns Pf - Cm remove
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.Nd Remove a device from a ZFS storage pool
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.Sh SYNOPSIS
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.Nm
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.Cm remove
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.Op Fl npw
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.Ar pool Ar device Ns ...
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.Nm
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.Cm remove
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.Fl s
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.Ar pool
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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
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.Cm remove
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.Op Fl npw
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.Ar pool Ar device Ns ...
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.Xc
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Removes the specified device from the pool.
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This command supports removing hot spare, cache, log, and both mirrored and
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non-redundant primary top-level vdevs, including dedup and special vdevs.
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When the primary pool storage includes a top-level raidz vdev only hot spare,
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cache, and log devices can be removed.
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Note that keys for all encrypted datasets must be loaded for top-level vdevs
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to be removed.
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.sp
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Removing a top-level vdev reduces the total amount of space in the storage pool.
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The specified device will be evacuated by copying all allocated space from it to
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the other devices in the pool.
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In this case, the
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.Nm zpool Cm remove
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command initiates the removal and returns, while the evacuation continues in
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the background.
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The removal progress can be monitored with
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.Nm zpool Cm status .
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If an IO error is encountered during the removal process it will be
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cancelled. The
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.Sy device_removal
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feature flag must be enabled to remove a top-level vdev, see
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.Xr zpool-features 5 .
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.Pp
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A mirrored top-level device (log or data) can be removed by specifying the top-level mirror for the
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same.
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Non-log devices or data devices that are part of a mirrored configuration can be removed using
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the
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.Nm zpool Cm detach
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command.
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.Bl -tag -width Ds
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.It Fl n
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Do not actually perform the removal ("no-op").
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Instead, print the estimated amount of memory that will be used by the
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mapping table after the removal completes.
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This is nonzero only for top-level vdevs.
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.El
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.Bl -tag -width Ds
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.It Fl p
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Used in conjunction with the
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.Fl n
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flag, displays numbers as parsable (exact) values.
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.It Fl w
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Waits until the removal has completed before returning.
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.El
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.It Xo
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.Nm
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.Cm remove
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.Fl s
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.Ar pool
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.Xc
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Stops and cancels an in-progress removal of a top-level vdev.
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.El
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.Sh SEE ALSO
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.Xr zpool-add 8 ,
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.Xr zpool-detach 8 ,
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.Xr zpool-offline 8 ,
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.Xr zpool-labelclear 8 ,
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.Xr zpool-replace 8 ,
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.Xr zpool-split 8
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