NAME

       vos_lock - Locks a VLDB volume entry

SYNOPSIS

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

       vos lo -i <volume name or ID>
           [-c <cell name>]
           [-noa] [-l] [-v] [-e] [-nor] [-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.

       -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.

       -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.