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ZFS-UPGRADE(8)		    System Manager's Manual		ZFS-UPGRADE(8)

NAME
       zfs-upgrade -- manage on-disk version of	ZFS filesystems

SYNOPSIS
       zfs upgrade
       zfs upgrade -v
       zfs upgrade [-r]	[-V version] -a|filesystem

DESCRIPTION
       zfs upgrade
	 Displays a list of file systems that are not the most recent version.

       zfs upgrade -v
	 Displays a list of currently supported	file system versions.

       zfs upgrade [-r]	[-V version] -a|filesystem
	 Upgrades  file	 systems to a new on-disk version.  Once this is done,
	 the file systems will no longer  be  accessible  on  systems  running
	 older versions	of ZFS.	 zfs send streams generated from new snapshots
	 of  these  file  systems  cannot be accessed on systems running older
	 versions of ZFS.

	 In general, the file system version is	independent of the  pool  ver-
	 sion.	See zpool-features(7) for information on features of ZFS stor-
	 age pools.

	 In  some  cases, the file system version and the pool version are in-
	 terrelated and	the pool version must be upgraded before the file sys-
	 tem version can be upgraded.

	 -V version  Upgrade to	version.  If not  specified,  upgrade  to  the
		     most recent version.  This	option can only	be used	to in-
		     crease the	version	number,	and only up to the most	recent
		     version supported by this version of ZFS.

	 -a	     Upgrade all file systems on all imported pools.

	 filesystem  Upgrade the specified file	system.

	 -r	     Upgrade the specified file	system and all descendent file
		     systems.

SEE ALSO
       zpool-upgrade(8)

FreeBSD	Ports 14.quarterly	 June 30, 2019			ZFS-UPGRADE(8)

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<https://man.freebsd.org/cgi/man.cgi?query=zfs-upgrade&sektion=8&manpath=FreeBSD+Ports+14.3.quarterly>

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