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NAME

       vos_lock - Locks a VLDB volume entry

SYNOPSIS

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

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

DESCRIPTION

       The vos lock command locks the Volume Location Database (VLDB) entry
       for the indicated volume, blocking any operation that requires a write
       to that entry. The lock applies to all of the volume versions
       associated with the entry, not just the one specified with the -id
       argument.

       To unlock a single VLDB entry, use the vos unlock command. To unlock
       several entries, or all locked entries in the VLDB, use the vos
       unlockvldb command.

CAUTIONS

       Do not use this command in normal circumstances. It is useful for
       guaranteeing that the volume stays unchanged when there is reason to
       believe that volume operations cannot properly lock VLDB volume entries
       as they normally do to synchronize with one another.

OPTIONS

       -id <volume name or ID>
           Specifies either the complete name or volume ID number of a volume
           of the any of the three types.

       -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.

EXAMPLES

       The following command locks the VLDB entry for "user.terry".

          % vos lock user.terry

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_unlock(1), vos_unlockvldb(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.