VOS_SIZE(1)						       AFS Command Reference						       VOS_SIZE(1)

NAME

       vos_size - Computes the size of a volume dump

SYNOPSIS

       vos size [-id] <volume name or id>
	   [-partition <partition name>]
	   [-server <machine name>]
	   [-dump] [-time <dump from time>]
	   [-cell <cell name>]
	   [-noauth] [-localauth]
	   [-verbose] [-encrypt] [-noresolve] [-help]

       vos si [-i] <volume name or id>
	   [-p <partition name>]
	   [-s <machine name>]
	   [-d] [-t <dump from time>]
	   [-c <cell name>]
	   [-no] [-l]
	   [-v] [-e] [-nor] [-h]

DESCRIPTION

       The vos size command shows the size of a volume's dump for backup purposes. The size of the dump may differ from the volume size as
       reported by vos examine or fs listquota. The size is shown in bytes.

       This command is intended for use with backup systems that want to size volume dumps before performing them (to optimize use of tape
       resources, for example).

OPTIONS

       -id <volume name or id>
	   Specifies either the complete name or volume ID number of the read/write, read-only, or backup volume to size.

       -partition <partition name>
	   Specifies the partition on which the volume resides. Provide the -server argument along with this one.

       -server <machine name>
	   Specifies the file server machine on which the volume resides.  Provide the -partition argument along with this one.

       -dump
	   Show the size of the volume dump for the specified volume. Currently, this flag should always be given for vos size to give useful
	   information.  It is present to allow this command to provide other size estimates in the future.

       -time <dump from time>
	   Specifies whether the dump is full or incremental. Omit this argument to size a full dump. See vos_dump(1) for the valid values for
	   this option.

       -cell <cell name>
	   The cell in which the volume resides, if it's not in the current cell.

       -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
	   Show more output about what's going on.

       -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.

OUTPUT

       When run without -verbose, the output will be:

	  Volume: <volume>
	  dump_size: <size>

       where <volume> is the name of the volume and <size> is the size of the dump in bytes. With -verbose, additional status messages will be
       printed between those two lines.

EXAMPLES

       Sizing a single user volume:

	  % vos size user.thoron -dump
	  Volume: user.thoron
	  dump_size: 36430

       or, more verbosely:

	  % vos size user.thoron -dump -verbose
	  Volume: user.thoron
	  Starting transaction on volume 2003434023... done
	  Getting size of volume on volume 2003434023... done
	  Ending transaction on volume 2003434023... done
	  dump_size: 36430

       Sizing an incremental dump for the same volume:

	  % vos size -id user.thoron -time '05/04/2007 00:00:00' -dump
	  Volume: user.thoron
	  dump_size: 21095

PRIVILEGE REQUIRED

       The issuer must be listed in the /etc/openafs/server/UserList file on the machine specified with the -server argument or the machine on
       which the volume is located if -server was not given.  If the -localauth flag is included, the issuer must instead be logged on to a server
       machine as the local superuser "root".

SEE ALSO

       fs_listquota(1), vos_dump(1), vos_examine(1)

COPYRIGHT

       Copyright 2007 Jason Edgecombe <jason@rampaginggeek.com>

       This documentation is covered by the BSD License as written in the doc/LICENSE file. This man page was written by Jason Edgecombe for
       OpenAFS.

OpenAFS 							    2012-03-26							       VOS_SIZE(1)