Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/contrib/openzfs/man/man8/zpool-attach.8
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1 .\" 2 .\" CDDL HEADER START 3 .\" 4 .\" The contents of this file are subject to the terms of the 5 .\" Common Development and Distribution License (the "License"). 6 .\" You may not use this file except in compliance with the License. 7 .\" 8 .\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 .\" or https://opensource.org/licenses/CDDL-1.0. 10 .\" See the License for the specific language governing permissions 11 .\" and limitations under the License. 12 .\" 13 .\" When distributing Covered Code, include this CDDL HEADER in each 14 .\" file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 .\" If applicable, add the following below this CDDL HEADER, with the 16 .\" fields enclosed by brackets "[]" replaced with your own identifying 17 .\" information: Portions Copyright [yyyy] [name of copyright owner] 18 .\" 19 .\" CDDL HEADER END 20 .\" 21 .\" Copyright (c) 2007, Sun Microsystems, Inc. All Rights Reserved. 22 .\" Copyright (c) 2012, 2018 by Delphix. All rights reserved. 23 .\" Copyright (c) 2012 Cyril Plisko. All Rights Reserved. 24 .\" Copyright (c) 2017 Datto Inc. 25 .\" Copyright (c) 2018 George Melikov. All Rights Reserved. 26 .\" Copyright 2017 Nexenta Systems, Inc. 27 .\" Copyright (c) 2017 Open-E, Inc. All Rights Reserved. 28 .\" 29 .Dd May 15, 2020 30 .Dt ZPOOL-ATTACH 8 31 .Os 32 . 33 .Sh NAME 34 .Nm zpool-attach 35 .Nd attach new device to existing ZFS vdev 36 .Sh SYNOPSIS 37 .Nm zpool 38 .Cm attach 39 .Op Fl fsw 40 .Oo Fl o Ar property Ns = Ns Ar value Oc 41 .Ar pool device new_device 42 . 43 .Sh DESCRIPTION 44 Attaches 45 .Ar new_device 46 to the existing 47 .Ar device . 48 The existing device cannot be part of a raidz configuration. 49 If 50 .Ar device 51 is not currently part of a mirrored configuration, 52 .Ar device 53 automatically transforms into a two-way mirror of 54 .Ar device 55 and 56 .Ar new_device . 57 If 58 .Ar device 59 is part of a two-way mirror, attaching 60 .Ar new_device 61 creates a three-way mirror, and so on. 62 In either case, 63 .Ar new_device 64 begins to resilver immediately and any running scrub is cancelled. 65 .Bl -tag -width Ds 66 .It Fl f 67 Forces use of 68 .Ar new_device , 69 even if it appears to be in use. 70 Not all devices can be overridden in this manner. 71 .It Fl o Ar property Ns = Ns Ar value 72 Sets the given pool properties. 73 See the 74 .Xr zpoolprops 7 75 manual page for a list of valid properties that can be set. 76 The only property supported at the moment is 77 .Sy ashift . 78 .It Fl s 79 The 80 .Ar new_device 81 is reconstructed sequentially to restore redundancy as quickly as possible. 82 Checksums are not verified during sequential reconstruction so a scrub is 83 started when the resilver completes. 84 Sequential reconstruction is not supported for raidz configurations. 85 .It Fl w 86 Waits until 87 .Ar new_device 88 has finished resilvering before returning. 89 .El 90 . 91 .Sh SEE ALSO 92 .Xr zpool-add 8 , 93 .Xr zpool-detach 8 , 94 .Xr zpool-import 8 , 95 .Xr zpool-initialize 8 , 96 .Xr zpool-online 8 , 97 .Xr zpool-replace 8 , 98 .Xr zpool-resilver 8
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