08-11-2008
put the possibility of bad media aside for a moment
Well, I tried another set of backup tapes with the same results, the "unable to read volume header. . ." Is there a way I can verify what type of backup was used to create these tapes. My manager, whom inherited this server, doesn't remember much about the backup and restoration processes, except that he used the backup.script listed on at least one occasion.
Putting the possibility of bad media aside, how would I go about finding out what's on the tapes. It appears from they are neither tar'd, nor frecover backups. Could they be cpio's or something else? Please pass on the commands that would help me narrow this down.
Thanks
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LEARN ABOUT REDHAT
backup_volinfo
BACKUP_VOLINFO(8) AFS Command Reference BACKUP_VOLINFO(8)
NAME
backup_volinfo - Displays a volume's dump history from the Backup Database
SYNOPSIS
backup volinfo -volume <volume name> [-localauth]
[-cell <cell name>] [-help]
backup voli -v <volume name>
[-l] [-c <cell name>] [-h]
DESCRIPTION
The backup volinfo command displays a dump history of the specified volume, reporting information such as the date on which the volume was
dumped and the tapes that contain it. Include the ".backup" extension on the volume name if the backup version of the volume was dumped.
OPTIONS
-volume <volume name>
Names the volume for which to display the dump history. Include the ".backup" or ".readonly" extension if the backup or read-only
version of the volume was dumped.
-localauth
Constructs a server ticket using a key from the local /etc/openafs/server/KeyFile file. The backup command interpreter presents it to
the Backup Server, Volume Server and VL Server during mutual authentication. Do not combine this flag with the -cell argument. For more
details, see backup(8).
-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 backup(8).
-help
Prints the online help for this command. All other valid options are ignored.
OUTPUT
The output includes a line for each Backup Database dump record that mentions the specified volume, order from most to least recent. The
output for each record appears in a table with six columns:
dumpID
The dump ID of the dump that includes the volume.
lvl The depth in the dump hierarchy of the dump level at which the volume was dumped. A value of 0 indicates a full dump. A value of 1 or
greater indicates an incremental dump made at the specified depth in the dump hierarchy.
parentid
The dump ID of the dump's parent dump. A value of 0 indicates a full dump, which has no parent; in this case, the value in the "lvl"
column is also 0.
creation date
The date and time at which the Backup System started the dump operation that created the dump.
clone date
For a backup or read-only volume, the time at which it was cloned from its read/write source. For a read/write volume, the same as the
value in the "creation date" field.
tape name
The name of the tape containing the dump: either the permanent tape name, or an AFS tape name in the format
volume_set_name.dump_level_name.tape_index where volume_set_name is the name of the volume set associated with the initial dump in the
dump set of which this tape is a part; dump_level_name is the name of the dump level at which the initial dump was backed up;
tape_index is the ordinal of the tape in the dump set. Either type of name can be followed by a dump ID in parentheses; if it appears,
it is the dump ID of the initial dump in the dump set to which this appended dump belongs.
EXAMPLES
The following example shows part of the dump history of the Backup volume "user.smith.backup":
% backup volinfo -volume user.smith.backup
DumpID lvl parentID creation date clone date tape name
924600000 1 924427600 04/20/1999 05:20 04/20/1999 05:01 user_incr_2 (924514392)
924514392 1 924427600 04/19/1999 05:33 04/19/1999 05:08 user_incr_2
924427600 0 0 04/18/1999 05:26 04/18/1999 04:58 user_full_6
. . . . . . . .
. . . . . . . .
PRIVILEGE REQUIRED
None
SEE ALSO
backup(8), backup_dumpinfo(8), backup_volrestore(8)
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.
OpenAFS 2012-03-26 BACKUP_VOLINFO(8)