NAME

     zfs-rollback — roll ZFS dataset back to snapshot

SYNOPSIS

     zfs rollback [-Rfr] snapshot

DESCRIPTION

     When a dataset is rolled back, all data that has changed since the snapshot is discarded,
     and the dataset reverts to the state at the time of the snapshot.  By default, the command
     refuses to roll back to a snapshot other than the most recent one.  In order to do so, all
     intermediate snapshots and bookmarks must be destroyed by specifying the -r option.

     The -rR options do not recursively destroy the child snapshots of a recursive snapshot.
     Only direct snapshots of the specified filesystem are destroyed by either of these options.
     To completely roll back a recursive snapshot, you must roll back the individual child
     snapshots.

     -R  Destroy any more recent snapshots and bookmarks, as well as any clones of those
         snapshots.

     -f  Used with the -R option to force an unmount of any clone file systems that are to be
         destroyed.

     -r  Destroy any snapshots and bookmarks more recent than the one specified.

EXAMPLES

   Example 8: Rolling Back a ZFS File System
     The following command reverts the contents of pool/home/anne to the snapshot named
     yesterday, deleting all intermediate snapshots:
           # zfs rollback -r pool/home/anne@yesterday

SEE ALSO

     zfs-snapshot(8)