NAME

       rsbackup-snapshot-hook - rsync-based backup utility

SYNOPSIS

       rsbackup-snapshot-hook [OPTIONS]

DESCRIPTION

       rsbackup-snapshot-hook  creates  and  removes LVM snapshots when configured as a pre- or post-backup-hook
       for rsbackup(1).

       Snapshots will only be created for volumes that have a corresponding directory in the snapshot directory.
       For  instance, a snapshot will be created for the volume root if /var/lib/rsbackup/snapshots/root exists.
       (Use the --snaps option to change the snapshot directory.)  Such volumes must  be  stored  in  a  logical
       volume.

       Leftover snapshots are always unmounted and removed before creation.

       Snapshots  are  given  only  a  fraction of the size of the original volume.  Use the --divisor to change
       this.

       After creation snapshots are fsck'd and mounted.  If an error occurs in any part of the creation process,
       the  partially snapshot created snapshot may be left in place (and ultimately be torn down when the post-
       backup-hook is run).

OPTIONS

       --snaps, -s PATH
              Set the path to the snapshot directory.  The default is /var/lib/rsbackup/snapshots.

       --divisor, -d DIVISOR
              Set the snapshot size ratio.  The default is 5.

       --help, -h
              Display usage message.

       --version, -V
              Display version string.

SEE ALSO

       rsbackup(1), lvm(8)

AUTHOR

       Richard Kettlewell <rjk@greenend.org.uk>

                                                                                                     rsbackup(1)