If your system
fails, make a copy of the contents of the system dump file and contact
your HP support representative. You can use the Backup utility
(BACKUP) to create save sets containing system dump files on magnetic
tape or disk. However, when using BACKUP to copy system dump files,
you must specify the /IGNORE=(NOBACKUP,INTERLOCK) qualifier for
the following reasons:
By default, the system dump file has
the NOBACKUP attribute, so it is not copied unless you specify /IGNORE=NOBACKUP.
The system keeps an open channel to the system dump
file, so the file is not copied unless you specify /IGNORE=INTERLOCK.
For more information about using BACKUP, see the HP OpenVMS System Manager's Manual, Volume 1: Essentials.
For information about BACKUP commands, see the BACKUP section in
the HP OpenVMS System Management Utilities Reference Manual: A--L.
HP recommends that you use the following procedure
to copy your system dump file:
Use the SDA command
COPY to make a copy of the system dump file.
Use BACKUP to save that copy on tape or disk.
This procedure avoids issues with BACKUP qualifiers and reduces
the amount of data written to tape or disk because the SDA command
COPY copies only blocks in the system dump file that are actually
used.