NAME

       amzfs-sendrecv - Amanda script to create zfs sendrecv

DESCRIPTION

       amzfs-sendrecv is an Amanda application implementing the Application API. It should not be
       run by users directly. It create a zfs snapshot of the filesystem and backup the snapshot
       with 'zfs send'. Snapshot are kept after the backup is done, this increase the disk space
       use on the client but it is neccesary to be able do to incremental backup. If you want
       only full backup, you can disable this feature by setting the KEEP-SNAPSHOT property to
       'NO'. Only the restoration of the complete backup is allowed, it is impossible to restore
       a single file.

       The application is run as the amanda user, it must have many zfs priviledge:

           zfs allow -ldu AMANDA_USER mount,create,rename,snapshot,destroy,send,receive FILESYSTEM

       Some system doesn't have "zfs allow", but you can give the Amanda backup user the rights
       to manipulate ZFS filesystems by using the following command:

       usermod -P "ZFS File System Management,ZFS Storage Management" AMANDA_USER
       This will require that your run zfs under pfexec, set the PFEXEC property to YES.

       The format of the diskdevice in the disklist (DLE) must be one of:

       Desciption              Example
       ----------              -------
       Mountpoint              /data
       ZFS pool name           datapool
       ZFS filesystem          datapool/database
       ZFS logical volume      datapool/dbvol

       The filesystem doesn't need to be mounted.

PROPERTIES

       This section lists the properties that control amzfs-sendrecv's functionality. See amanda-
       applications(7) for information on the Application API, application configuration.

       DF-PATH

           Path to the 'df' binary, search in $PATH by default.

       KEEP-SNAPSHOT

           If "YES" (the default), snapshot are kept after the backup, if set to "NO" then
           snapshot are no kept and incremental backup will fail.

       ZFS-PATH

           Path to the 'zfs' binary, search in $PATH by default.

       PFEXEC-PATH

           Path to the 'pfexec' binary, search in $PATH by default.

       PFEXEC

           If "NO" (the default), pfexec is not used, if set to "YES" then pfexec is used.

EXAMPLE

       In this example, a dumptype is defined to use amzfs-sendrecv application to backup a zfs
       filesystem.
        define application-tool amzfs_sendrecv {
          comment "amzfs-sendrecv"
          plugin "amzfs-sendrecv"
          #property "DF-PATH"  "/usr/sbin/df"
          #property "KEEP-SNAPSHOT" "YES"
          #property "ZFS-PATH" "/usr/sbin/zfs"
          #property "PFEXEC-PATH" "/usr/sbin/pfexec"
          #property "PFEXEC" "NO"
        }

        define dumptype user-zfs-sendrecv {
          program "APPLICATION"
          application "amzfs_sendrecv"
        }

SEE ALSO

       amanda(8), amanda.conf(5), amanda-client.conf(5), amanda-applications(7)

       The Amanda Wiki: : http://wiki.zmanda.com/

AUTHOR

       Jean-Louis Martineau <martineau@zmanda.com>
           Zmanda, Inc. (http://www.zmanda.com)