104 lines
2.9 KiB
Groff
104 lines
2.9 KiB
Groff
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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 May 15, 2020
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.Dt ZPOOL-ATTACH 8
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.Os
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.Sh NAME
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.Nm zpool-attach
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.Nd Attach a new device to an existing ZFS virtual device (vdev).
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.Sh SYNOPSIS
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.Nm zpool
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.Cm attach
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.Op Fl fsw
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.Oo Fl o Ar property Ns = Ns Ar value Oc
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.Ar pool device new_device
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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 attach
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.Op Fl fsw
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.Oo Fl o Ar property Ns = Ns Ar value Oc
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.Ar pool device new_device
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.Xc
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Attaches
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.Ar new_device
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to the existing
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.Ar device .
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The existing device cannot be part of a raidz configuration.
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If
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.Ar device
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is not currently part of a mirrored configuration,
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.Ar device
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automatically transforms into a two-way mirror of
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.Ar device
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and
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.Ar new_device .
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If
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.Ar device
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is part of a two-way mirror, attaching
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.Ar new_device
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creates a three-way mirror, and so on.
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In either case,
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.Ar new_device
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begins to resilver immediately and any running scrub is cancelled.
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.Bl -tag -width Ds
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.It Fl f
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Forces use of
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.Ar new_device ,
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even if it appears to be in use.
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Not all devices can be overridden in this manner.
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.It Fl o Ar property Ns = Ns Ar value
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Sets the given pool properties. See the
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.Xr zpoolprops 8
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manual page for a list of valid properties that can be set. The only property
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supported at the moment is ashift.
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.It Fl s
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The
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.Ar new_device
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is reconstructed sequentially to restore redundancy as quickly as possible.
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Checksums are not verfied during sequential reconstruction so a scrub is
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started when the resilver completes.
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Sequential reconstruction is not supported for raidz configurations.
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.It Fl w
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Waits until
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.Ar new_device
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has finished resilvering before returning.
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.El
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.El
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.Sh SEE ALSO
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.Xr zpool-detach 8 ,
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.Xr zpool-add 8 ,
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.Xr zpool-import 8 ,
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.Xr zpool-initialize 8 ,
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.Xr zpool-online 8 ,
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.Xr zpool-replace 8 ,
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.Xr zpool-resilver 8
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