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

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.

OpenAFS                                            2025-03-21                                      VOS_BACKUP(1)

Description

       The vosbackup 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 voscreate command. If a
       backup version already exists, the new clone replaces it.

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

Examples

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

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

Name

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

Options

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

-cell <cellname>
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.

-encrypt
Encrypts the command so that the operation's results are not transmitted across the network in clear
text. This option is available in OpenAFS versions 1.4.11 or later and 1.5.60 or later.

-noresolve
Shows all servers as IP addresses instead of the DNS name. This is very useful when the server
address is registered as 127.0.0.1 or when dealing with multi-homed servers. This option is available
in OpenAFS versions 1.4.8 or later and 1.5.35 or later.

-config <configurationdirectory>
Set the location of the configuration directory to be used. This defaults to /etc/openafs, except if
-localauth is specified, in which case the default is /etc/openafs/server. This option allows the use
of alternative configuration locations for testing purposes.

-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>

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".

Synopsis

vosbackup-id <volumenameorID>
           [-cell <cellname>]
           [-noauth] [-localauth] [-verbose]
           [-encrypt] [-noresolve]
           [-config <configdirectory>]
           [-help]

       vosbackup-i <volumenameorID> [-c <cellname>]
           [-noa] [-l] [-v] [-e] [-nor]
           [-co <configdirectory>]
           [-h]