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 29, 2021 30.Dt ZPOOL-REPLACE 8 31.Os 32. 33.Sh NAME 34.Nm zpool-replace 35.Nd replace one device with another in ZFS storage pool 36.Sh SYNOPSIS 37.Nm zpool 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. 43.Sh DESCRIPTION 44Replaces 45.Ar device 46with 47.Ar new-device . 48This is equivalent to attaching 49.Ar new-device , 50waiting for it to resilver, and then detaching 51.Ar device . 52Any in progress scrub will be cancelled. 53.Pp 54The size of 55.Ar new-device 56must be greater than or equal to the minimum size of all the devices in a mirror 57or raidz configuration. 58.Pp 59.Ar new-device 60is required if the pool is not redundant. 61If 62.Ar new-device 63is not specified, it defaults to 64.Ar device . 65This form of replacement is useful after an existing disk has failed and has 66been physically replaced. 67In this case, the new disk may have the same 68.Pa /dev 69path as the old device, even though it is actually a different disk. 70ZFS recognizes this. 71.Bl -tag -width Ds 72.It Fl f 73Forces use of 74.Ar new-device , 75even if it appears to be in use. 76Not all devices can be overridden in this manner. 77.It Fl o Ar property Ns = Ns Ar value 78Sets the given pool properties. 79See the 80.Xr zpoolprops 7 81manual page for a list of valid properties that can be set. 82The only property supported at the moment is 83.Sy ashift . 84.It Fl s 85The 86.Ar new-device 87is reconstructed sequentially to restore redundancy as quickly as possible. 88Checksums are not verified during sequential reconstruction so a scrub is 89started when the resilver completes. 90Sequential reconstruction is not supported for raidz configurations. 91.It Fl w 92Waits until the replacement has completed before returning. 93.El 94. 95.Sh SEE ALSO 96.Xr zpool-detach 8 , 97.Xr zpool-initialize 8 , 98.Xr zpool-online 8 , 99.Xr zpool-resilver 8 100