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admbackup(1M)

admdumpcycle(1M)

dump2(1M)

fstab(4)



dumpcycle(4M)                    DG/UX R4.11                   dumpcycle(4M)


NAME
       dumpcycle - dump cycle file for backups

DESCRIPTION
       The file /etc/sysadm/dumpcycle describes the cycle used by
       admbackup(1M) for creating backups of file systems.

       Each line of the file describes the backup to be performed for a
       given day (excluding weekends).  Each line contains four fields like
       this:

           pattern  dump-level  multi-dump-flag  description

       By default, the first line of the file is as follows:

           [dwm]        0        n        Monthly Set


       admbackup(1M) compares the pattern field against the string in the
       fifth field of the fstab(4) entry for each file system mounted on the
       local machine.  Each file system whose entry matches the pattern for
       the current day will be backed up.

       The dump-level field indicates the level of the backup to be
       performed.  If dump-level is 0, all files in the file system are
       backed up.  If dump-level is greater than 0, all files which have
       changed since a previous, lower-level dump was performed will be
       backed up (see dump2(1M)).

       The multi-dump-flag field exists for compatibility with previous
       releases, and will be removed in a future release.

       The description field is a text string which is presented to the
       operator as a suggested label for this day's backup.  Typically, this
       field is used on the paper labels applied to backup tapes.

       One and only one line of the dumpcycle file must contain the
       character "@" at the beginning of the line.  This character indicates
       the current position in the cycle.  This position may be modified by
       using the admdumpcycle -o position command.

EXAMPLES
       If a machine has a large-capacity tape drive attached to it, the
       administrator may choose to alter the cycle of backups so that more
       information is backed up every day.  This may allow files to be
       restored more quickly.

       The entries needed to perform a full backup once a week and a backup
       of all changed files each day of the week would look similar to this:

           @[dwm]     0        n        Monthly Set
           [d]        1        n        Week 1 - Monday Set
           [d]        1        n        Week 1 - Tuesday Set
           [d]        1        n        Week 1 - Wednesday Set
           [d]        1        n        Week 1 - Thursday Set
           [dw]       0        n        Week 1 - Weekly Set
           [d]        1        n        Week 2 - Monday Set
           [d]        1        n        Week 2 - Tuesday Set
           [d]        1        n        Week 2 - Wednesday Set
           [d]        1        n        Week 2 - Thursday Set

       and so on.

FILES
       /etc/sysadm/dumpcycle

SEE ALSO
       admbackup(1M), admdumpcycle(1M), dump2(1M), fstab(4).


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Typewritten Software • bear@typewritten.org • Edmonds, WA 98026