1.\" SPDX-License-Identifier: CDDL-1.0 2.\" 3.\" CDDL HEADER START 4.\" 5.\" The contents of this file are subject to the terms of the 6.\" Common Development and Distribution License (the "License"). 7.\" You may not use this file except in compliance with the License. 8.\" 9.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10.\" or https://opensource.org/licenses/CDDL-1.0. 11.\" See the License for the specific language governing permissions 12.\" and limitations under the License. 13.\" 14.\" When distributing Covered Code, include this CDDL HEADER in each 15.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16.\" If applicable, add the following below this CDDL HEADER, with the 17.\" fields enclosed by brackets "[]" replaced with your own identifying 18.\" information: Portions Copyright [yyyy] [name of copyright owner] 19.\" 20.\" CDDL HEADER END 21.\" 22.\" Copyright (c) 2009 Sun Microsystems, Inc. All Rights Reserved. 23.\" Copyright 2011 Joshua M. Clulow <josh@sysmgr.org> 24.\" Copyright (c) 2011, 2019 by Delphix. All rights reserved. 25.\" Copyright (c) 2013 by Saso Kiselkov. All rights reserved. 26.\" Copyright (c) 2014, Joyent, Inc. All rights reserved. 27.\" Copyright (c) 2014 by Adam Stevko. All rights reserved. 28.\" Copyright (c) 2014 Integros [integros.com] 29.\" Copyright 2019 Richard Laager. All rights reserved. 30.\" Copyright 2018 Nexenta Systems, Inc. 31.\" Copyright 2019 Joyent, Inc. 32.\" 33.Dd June 30, 2019 34.Dt ZFS-UPGRADE 8 35.Os 36. 37.Sh NAME 38.Nm zfs-upgrade 39.Nd manage on-disk version of ZFS filesystems 40.Sh SYNOPSIS 41.Nm zfs 42.Cm upgrade 43.Nm zfs 44.Cm upgrade 45.Fl v 46.Nm zfs 47.Cm upgrade 48.Op Fl r 49.Op Fl V Ar version 50.Fl a Ns | Ns Ar filesystem 51. 52.Sh DESCRIPTION 53.Bl -tag -width "" 54.It Xo 55.Nm zfs 56.Cm upgrade 57.Xc 58Displays a list of file systems that are not the most recent version. 59.It Xo 60.Nm zfs 61.Cm upgrade 62.Fl v 63.Xc 64Displays a list of currently supported file system versions. 65.It Xo 66.Nm zfs 67.Cm upgrade 68.Op Fl r 69.Op Fl V Ar version 70.Fl a Ns | Ns Ar filesystem 71.Xc 72Upgrades file systems to a new on-disk version. 73Once this is done, the file systems will no longer be accessible on systems 74running older versions of ZFS. 75.Nm zfs Cm send 76streams generated from new snapshots of these file systems cannot be accessed on 77systems running older versions of ZFS. 78.Pp 79In general, the file system version is independent of the pool version. 80See 81.Xr zpool-features 7 82for information on features of ZFS storage pools. 83.Pp 84In some cases, the file system version and the pool version are interrelated and 85the pool version must be upgraded before the file system version can be 86upgraded. 87.Bl -tag -width "filesystem" 88.It Fl V Ar version 89Upgrade to 90.Ar version . 91If not specified, upgrade to the most recent version. 92This 93option can only be used to increase the version number, and only up to the most 94recent version supported by this version of ZFS. 95.It Fl a 96Upgrade all file systems on all imported pools. 97.It Ar filesystem 98Upgrade the specified file system. 99.It Fl r 100Upgrade the specified file system and all descendent file systems. 101.El 102.El 103.Sh SEE ALSO 104.Xr zpool-upgrade 8 105