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NAME

       backup_dumpinfo - Displays a dump record from the Backup Database

SYNOPSIS

       backup dumpinfo [-ndumps <number of dumps>]
           [-id <dump id>] [-verbose] [-localauth]
           [-cell <cell name>] [-help]

       backup dumpi [-n <no. of dumps>] [-i <dump id>] [-v]
           [-l] [-c <cell name>] [-h]

DESCRIPTION

       The backup dumpinfo command formats and displays the Backup Database record for the
       specified dumps. To specify how many of the most recent dumps to display, starting with
       the newest one and going back in time, use the -ndumps argument. To display more detailed
       information about a single dump, use the -id argument. To display the records for the 10
       most recent dumps, omit both the -ndumps and -id arguments.

       The -verbose flag produces very detailed information that is useful mostly for debugging
       purposes. It can be combined only with the -id argument.

OPTIONS

       -ndumps <number of dumps>
           Displays the Backup Database record for each of the specified number of dumps that
           were most recently performed. If the database contains fewer dumps than are requested,
           the output includes the records for all existing dumps. Do not combine this argument
           with the -id or -verbose options; omit all options to display the records for the last
           10 dumps.

       -id <dump id>
           Specifies the dump ID number of a single dump for which to display the Backup Database
           record. Precede the dump id value with the -id switch; otherwise, the command
           interpreter interprets it as the value of the -ndumps argument. Combine this argument
           with the -verbose flag, but not with the -ndumps argument; omit all options to display
           the records for the last 10 dumps.

       -verbose
           Provides more detailed information about the dump specified with the -id argument,
           which must be provided along with it. Do not combine this flag with the -ndumps
           argument.

       -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

       If the -ndumps argument is provided, the output presents the following information in
       table form, with a separate line for each dump:

       dumpid
           The dump ID number.

       parentid
           The dump ID number of the dump's parent dump. A value of 0 (zero) identifies a full
           dump.

       lv  The depth in the dump hierarchy of the dump level used to create the dump. A value of
           0 (zero) identifies a full dump, in which case the value in the "parentid" field is
           also 0. A value of 1 or greater indicates an incremental dump made at the
           corresponding level in the dump hierarchy.

       created
           The date and time at which the Backup System started the dump operation that created
           the dump.

       nt  The number of tapes that contain the data in the dump. A value of 0 (zero) indicates
           that the dump operation was terminated or failed. Use the backup deletedump command to
           remove such entries.

       nvols
           The number of volumes from which the dump includes data. If a volume spans tapes, it
           is counted twice. A value of 0 (zero) indicates that the dump operation was terminated
           or failed; the value in the "nt" field is also 0 in this case.

       dump name
           The dump name in the form

              <volume_set_name>.<dump_level_name> (<initial_dump_ID>)

           where <volume_set_name> is the name of the volume set, and <dump_level_name> is the
           last element in the dump level pathname at which the volume set was dumped.

           The <initial_dump_ID>, if displayed, is the dump ID of the initial dump in the dump
           set to which this dump belongs. If there is no value in parentheses, the dump is the
           initial dump in a dump set that has no appended dumps.

       If the -id argument is provided alone, the first line of output begins with the string
       "Dump" and reports information for the entire dump in the following fields:

       id  The dump ID number.

       level
           The depth in the dump hierarchy of the dump level used to create the dump. A value of
           0 (zero) identifies a full dump. A value of 1 (one) or greater indicates an
           incremental dump made at the specified level in the dump hierarchy.

       volumes
           The number of volumes for which the dump includes data.

       created
           The date and time at which the dump operation began.

       If an XBSA server was the backup medium for the dump (rather than a tape device or backup
       data file), the following line appears next:

          Backup Service: <XBSA_program>: Server: <hostname>

       where <XBSA_program> is the name of the XBSA-compliant program and <hostname> is the name
       of the machine on which the program runs.

       Next the output includes an entry for each tape that houses volume data from the dump.
       Following the string "Tape", the first two lines of each entry report information about
       that tape in the following fields:

       name
           The tape's permanent name if it has one, or its AFS tape name otherwise, and its tape
           ID number in parentheses.

       nVolumes
           The number of volumes for which this tape includes dump data.

       created
           The date and time at which the Tape Coordinator began writing data to this tape.

       Following another blank line, the tape-specific information concludes with a table that
       includes a line for each volume dump on the tape. The information appears in columns with
       the following headings:

       Pos The relative position of each volume in this tape or file. On a tape, the counter
           begins at position 2 (the tape label occupies position 1), and increments by one for
           each volume. For volumes in a backup data file, the position numbers start with 1 and
           do not usually increment only by one, because each is the ordinal of the 16 KB offset
           in the file at which the volume's data begins. The difference between the position
           numbers therefore indicates how many 16 KB blocks each volume's data occupies. For
           example, if the second volume is at position 5 and the third volume in the list is at
           position 9, that means that the dump of the second volume occupies 64 KB (four 16-KB
           blocks) of space in the file.

       Clone time
           For a backup or read-only volume, the time at which it was cloned from its read/write
           source. For a Read/Write volume, it is the same as the dump creation date reported on
           the first line of the output.

       Nbytes
           The number of bytes of data in the dump of the volume.

       Volume
           The volume name, complete with ".backup" or ".readonly" extension if appropriate.

       If both the -id and -verbose options are provided, the output is divided into several
       sections:

       ·   The first section, headed by the underlined string "Dump", includes information about
           the entire dump. The fields labeled "id", "level", "created", and "nVolumes" report
           the same values (though in a different order) as appear on the first line of output
           when the -id argument is provided by itself.  Other fields of potential interest to
           the backup operator are:

           Group id
               The dump's group ID number, which is recorded in the dump's Backup Database record
               if the "GROUPID" instruction appears in the Tape Coordinator's
               /var/lib/openafs/backup/CFG_tcid file when the dump is created.

           maxTapes
               The number of tapes that contain the dump set to which this dump belongs.

           Start Tape Seq
               The ordinal of the tape on which this dump begins in the set of tapes that contain
               the dump set.

       ·   For each tape that contains data from this dump, there follows a section headed by the
           underlined string "Tape". The fields labeled "name", "written", and "nVolumes" report
           the same values (though in a different order) as appear on the second and third lines
           of output when the -id argument is provided by itself. Other fields of potential
           interest to the backup operator are:

           expires
               The date and time when this tape can be recycled, because all dumps it contains
               have expired.

           nMBytes Data and nBytes Data
               Summed together, these fields represent the total amount of dumped data actually
               from volumes (as opposed to labels, filemarks, and other markers).

           KBytes Tape Used
               The number of kilobytes of tape (or disk space, for a backup data file) used to
               store the dump data. It is generally larger than the sum of the values in the
               "nMBytes Data" and "nBytes Data" fields, because it includes the space required
               for the label, file marks and other markers, and because the Backup System writes
               data at 16 KB offsets, even if the data in a given block doesn't fill the entire
               16 KB.

       ·   For each volume on a given tape, there follows a section headed by the underlined
           string "Volume". The fields labeled "name", "position", "clone", and "nBytes" report
           the same values (though in a different order) as appear in the table that lists the
           volumes in each tape when the -id argument is provided by itself. Other fields of
           potential interest to the backup operator are:

           id  The volume ID.

           tape
               The name of the tape containing this volume data.

EXAMPLES

       The following example displays information about the last five dumps:

          % backup dumpinfo -ndumps 5
             dumpid   parentid lv created          nt nvols dump name
          924424000          0 0  04/18/1999 04:26  1    22 usr.sun (924424000)
          924685000  924424000 1  04/21/1999 04:56  1    62 usr.wed (924424000)
          924773000  924424000 1  04/22/1999 05:23  1    46 usr.thu (924424000)
          924860000  924424000 1  04/23/1999 05:33  1    58 usr.fri (924424000)
          925033000          0 0  04/25/1999 05:36  2    73 sys.week

       The following example displays a more detailed record for a single dump.

          % backup dumpinfo -id 922097346
          Dump: id 922097346, level 0, volumes 1, created Mon Mar 22 05:09:06 1999
          Tape: name monday.user.backup (922097346)
          nVolumes 1, created 03/22/1999 05:09
           Pos       Clone time   Nbytes Volume
             1 03/22/1999 04:43 27787914 user.pat.backup

       The following example displays even more detailed information about the dump displayed in
       the previous example (dump ID 922097346). This example includes only one exemplar of each
       type of section ("Dump", "Tape", and "Volume"):

          % backup dumpinfo -id 922097346 -verbose
          Dump
          ----
          id = 922097346
          Initial id = 0
          Appended id = 922099568
          parent = 0
          level = 0
          flags = 0x0
          volumeSet = user
          dump path = /monday1
          name = user.monday1
          created = Mon Mar 22 05:09:06 1999
          nVolumes = 1
          id  = 0
          tapeServer =
          format= user.monday1.%d
          maxTapes = 1
          Start Tape Seq = 1
          name = pat
          instance =
          cell =
          Tape
          ----
          tape name = monday.user.backup
          AFS tape name = user.monday1.1
          flags = 0x20
          written = Mon Mar 22 05:09:06 1999
          expires = NEVER
          kBytes Tape Used = 121
          nMBytes Data = 0
          nBytes  Data = 19092
          nFiles = 0
          nVolumes = 1
          seq = 1
          tapeid = 0
          useCount = 1
          dump = 922097346
          Volume
          ------
          name = user.pat.backup
          flags = 0x18
          id = 536871640
          server =
          partition = 0
          nFrags = 1
          position = 2
          clone = Mon Mar 22 04:43:06 1999
          startByte = 0
          nBytes = 19092
          seq = 0
          dump = 922097346
          tape = user.monday1.1

PRIVILEGE REQUIRED

       The issuer must be listed in the /etc/openafs/server/UserList file on every machine where
       the Backup Server is running, or must be logged onto a server machine as the local
       superuser "root" if the -localauth flag is included.

SEE ALSO

       butc(5), backup(8), backup_deletedump(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.