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Backing Up (STORE) the System [ System Administrator's Quick Reference Guide ] MPE/iX 5.0 Documentation


System Administrator's Quick Reference Guide

Backing Up (STORE) the System 

A system backup consists of storing system and user files, and the system
directory.

Preparing the Tapes 

To store system and user directories and files mount a write-enabled,
labeled, backup tape on the drive and define as many backup device files
as needed.

The syntax for defining a backup device file is:

     FILE T;DEV=TAPE

Performing a Full System Backup 

To back up all system, user, and directory files, enter:

     STORE @.@.@;*T;SHOW=OFFLINE;PROGRESS;DIRECTORY

where *T is a backreference to the file equation,

     FILE T;DEV=TAPE

This backs up system, user, and directory files, sends the file list to
the printer, and displays progress messages about the backup.  When the
backup is completed, remove the tape and keep it in the library.
Completion of the backup is indicated by the message:

     END OF SUBSYSTEM

Performing an Incremental Backup 

The syntax for backing up only those files modified since the last backup
is:

     STORE @.@.@;*T;SHOW=OFFLINE;DATE>=mm/dd/yy;PROGRESS;DIRECTORY

where the date is the date of the last backup.

This backs up system, user, and directory files, sends the file list to
the printer, and displays progress messages about the backup.  When the
backup is completed, remove the tape and keep it in the library.
Completion of the backup is indicated by the message:

     END OF SUBSYSTEM

Backing Up the Configuration 

If you have changed your system configuration, use the SYSGEN utility to
back up the system configuration.  The syntax is:

     SYSGEN
     sysgen>TAPE

Mount a tape on the drive and put it online.  The procedure produces a
system load tape.  When the message END OF SUBSYSTEM is displayed, remove
the tape.  The syntax for returning to the command interpreter prompt (:)
is:

     sysgen>EXIT

This is not necessary unless you have changed your configuration.

Letting Users Back On the System 

After you have completed an incremental or full system backup, let users
back on the system.  The syntax is:

     LIMIT nn,nn 
     JOBFENCE nn 

The LIMIT command first defines the number of jobs and then the number of
sessions that may run concurrently on the system.  The JOBFENCE command
defines the minimum input priority that a job or session must have in
order to execute.



MPE/iX 5.0 Documentation