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                                            2021-04-01                                        VOS_SIZE(1)