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 http://www.opensolaris.org/os/licensing. 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.\" 22.\" Copyright (c) 2007, Sun Microsystems, Inc. All Rights Reserved. 23.\" Copyright (c) 2012, 2018 by Delphix. All rights reserved. 24.\" Copyright (c) 2012 Cyril Plisko. All Rights Reserved. 25.\" Copyright (c) 2017 Datto Inc. 26.\" Copyright (c) 2018 George Melikov. All Rights Reserved. 27.\" Copyright 2017 Nexenta Systems, Inc. 28.\" Copyright (c) 2017 Open-E, Inc. All Rights Reserved. 29.\" 30.Dd May 15, 2020 31.Dt ZPOOL-REPLACE 8 32.Os 33.Sh NAME 34.Nm zpool Ns Pf - Cm replace 35.Nd Replace one device with another in a ZFS storage pool 36.Sh SYNOPSIS 37.Nm 38.Cm replace 39.Op Fl fsw 40.Oo Fl o Ar property Ns = Ns Ar value Oc 41.Ar pool Ar device Op Ar new_device 42.Sh DESCRIPTION 43.Bl -tag -width Ds 44.It Xo 45.Nm 46.Cm replace 47.Op Fl fsw 48.Op Fl o Ar property Ns = Ns Ar value 49.Ar pool Ar device Op Ar new_device 50.Xc 51Replaces 52.Ar old_device 53with 54.Ar new_device . 55This is equivalent to attaching 56.Ar new_device , 57waiting for it to resilver, and then detaching 58.Ar old_device . 59Any in progress scrub will be cancelled. 60.Pp 61The size of 62.Ar new_device 63must be greater than or equal to the minimum size of all the devices in a mirror 64or raidz configuration. 65.Pp 66.Ar new_device 67is required if the pool is not redundant. 68If 69.Ar new_device 70is not specified, it defaults to 71.Ar old_device . 72This form of replacement is useful after an existing disk has failed and has 73been physically replaced. 74In this case, the new disk may have the same 75.Pa /dev 76path as the old device, even though it is actually a different disk. 77ZFS recognizes this. 78.Bl -tag -width Ds 79.It Fl f 80Forces use of 81.Ar new_device , 82even if it appears to be in use. 83Not all devices can be overridden in this manner. 84.It Fl o Ar property Ns = Ns Ar value 85Sets the given pool properties. See the 86.Xr zpoolprops 87manual page for a list of valid properties that can be set. 88The only property supported at the moment is 89.Sy ashift . 90.It Fl s 91The 92.Ar new_device 93is reconstructed sequentially to restore redundancy as quickly as possible. 94Checksums are not verfied during sequential reconstruction so a scrub is 95started when the resilver completes. 96Sequential reconstruction is not supported for raidz configurations. 97.It Fl w 98Waits until the replacement has completed before returning. 99.El 100.El 101.Sh SEE ALSO 102.Xr zpool-detach 8 , 103.Xr zpool-initialize 8 , 104.Xr zpool-online 8 , 105.Xr zpool-resilver 8 106