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NAME

       vos_backup - Creates a backup volume for a single read/write volume

SYNOPSIS

       vos backup -id <volume name or ID> [-cell <cell name>]
           [-noauth] [-localauth] [-verbose] [-help]

       vos backup -i <volume name or ID> [-c<cell name>]
           [-n] [-l] [-v] [-h]

DESCRIPTION

       The vos backup command clones the indicated read/write volume to create
       a backup version, placing it at the same site as the read/write
       version. The backup volume’s name is the same as the read/write
       source’s with the addition of the ".backup" extension. Its volume ID
       number is the one allocated for it in the Volume Location Database
       (VLDB) when the read/write source was created with the vos create
       command. If a backup version already exists, the new clone replaces it.

       To create a backup version of multiple volumes, use the vos backupsys
       command.

OPTIONS

       -id <volume name or ID>
           Specifies either the complete name or volume ID number of the
           read/write source volume.

       -cell <cell name>
           Names the cell in which to run the command. Do not combine this
           argument with the -localauth flag. For more details, see vos(1).

       -noauth
           Assigns the unprivileged identity anonymous to the issuer. Do not
           combine this flag with the -localauth flag. For more details, see
           vos(1).

       -localauth
           Constructs a server ticket using a key from the local
           /etc/openafs/server/KeyFile file. The vos command interpreter
           presents it to the Volume Server and Volume Location Server during
           mutual authentication. Do not combine this flag with the -cell
           argument or -noauth flag. For more details, see vos(1).

       -verbose
           Produces on the standard output stream a detailed trace of the
           command’s execution. If this argument is omitted, only warnings and
           error messages appear.

       -help
           Prints the online help for this command. All other valid options
           are ignored.

OUTPUT

       The following message confirms that the command succeeded:

          Created backup volume for I<volume name>

EXAMPLES

       The following example creates a backup version of the volume
       "user.smith".

          % vos backup user.smith
          Created backup volume for user.smith

PRIVILEGE REQUIRED

       The issuer must be listed in the /etc/openafs/server/UserList file on
       the machine specified with the -server argument and on each database
       server machine. If the -localauth flag is included, the issuer must
       instead be logged on to a server machine as the local superuser "root".

SEE ALSO

       vos(1), vos_backupsys(1)

COPYRIGHT

       IBM Corporation 2000. <http://www.ibm.com/> All Rights Reserved.

       This documentation is covered by the IBM Public License Version 1.0.
       It was converted from HTML to POD by software written by Chas Williams
       and Russ Allbery, based on work by Alf Wachsmann and Elizabeth Cassell.