=head1 NAME vos_size - Computes the size of a volume dump =head1 SYNOPSIS =for html
B S<<< [B<-id>] > >>> S<<< [B<-partition> >] >>> S<<< [B<-server> >] >>> [B<-dump>] S<<< [B<-time> >] >>> S<<< [B<-cell> >] >>> [B<-noauth>] [B<-localauth>] [B<-verbose>] [B<-encrypt>] [B<-noresolve>] [B<-help>] B S<<< [B<-i>] > >>> S<<< [B<-p> >] >>> S<<< [B<-s> >] >>> [B<-d>] S<<< [B<-t> >] >>> S<<< [B<-c> >] >>> [B<-no>] [B<-l>] [B<-v>] [B<-e>] [B<-nor>] [B<-h>] =for html
=head1 DESCRIPTION The B 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 B or B. 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). =head1 OPTIONS =over 4 =item B<-id> > Specifies either the complete name or volume ID number of the read/write, read-only, or backup volume to size. =item B<-partition> > Specifies the partition on which the volume resides. Provide the B<-server> argument along with this one. =item B<-server> > Specifies the file server machine on which the volume resides. Provide the B<-partition> argument along with this one. =item B<-dump> Show the size of the volume dump for the specified volume. Currently, this flag should always be given for B to give useful information. It is present to allow this command to provide other size estimates in the future. =item B<-time> > Specifies whether the dump is full or incremental. Omit this argument to size a full dump. See L for the valid values for this option. =item B<-cell> > The cell in which the volume resides, if it's not in the current cell. =item B<-noauth> Assigns the unprivileged identity anonymous to the issuer. Do not combine this flag with the B<-localauth> flag. For more details, see L. =item B<-localauth> Constructs a server ticket using a key from the local F file. The B command interpreter presents it to the Volume Server and Volume Location Server during mutual authentication. Do not combine this flag with the B<-cell> argument or B<-noauth> flag. For more details, see L. =item B<-verbose> Show more output about what's going on. =item B<-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. =item B<-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. =item B<-help> Prints the online help for this command. All other valid options are ignored. =back =head1 OUTPUT When run without B<-verbose>, the output will be: Volume: dump_size: where is the name of the volume and is the size of the dump in bytes. With B<-verbose>, additional status messages will be printed between those two lines. =head1 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 =head1 PRIVILEGE REQUIRED The issuer must be listed in the F file on the machine specified with the B<-server> argument or the machine on which the volume is located if B<-server> was not given. If the B<-localauth> flag is included, the issuer must instead be logged on to a server machine as the local superuser C. =head1 SEE ALSO L, L, L =head1 COPYRIGHT Copyright 2007 Jason Edgecombe 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.