An IPLable version of the Standalone DDR program is present as part of File 1 on Tape Volume 1 of the VM/ESA Starter System. The first physical file of Tape Volume 1 contains an IPLable image of the ICKDSF program, immediately followed by an IPLable version of the DDR program. Though this may not be the most current release of DDR, you should use it for this process.
To run the Standalone DDR program, mount the VM/ESA Starter System Tape Volume 1 on an available tape drive and IPL the system twice from that device. The first IPL starts the Standalone ICKDSF program; the second IPL starts the Standalone DDR program.
Standalone DDR interprets the first interrupt it receives as the console device. Therefore, you must disconnect or disable any device other than the console that can generate an interrupt before IPLing DDR.
The procedure for starting DDR is as follows:
VM/ENTERPRISE SYSTEMS ARCHITECTURE DASD DUMP/RESTORE PROGRAM ENTER CARD READER ADDRESS OR CONTROL STATEMENTS ENTER:
The process for restoring a disk volume from a DDR DUMP tape is described here. The procedure specific for restoring the VM/ESA Starter System varies slightly from this procedure. Please see the VM/ESA Installation Guide (see reference below) for complete instructions on restoring the VM/ESA Starter System.
For general DASD restores, use the following DDR commands:
sysprint cons ENTER: input tapeaddr tape ENTER: output diskaddr dasd volumeserial ENTER: restore all HCPDDR717D DATA DUMPED FROM volumeserial TO BE RESTORED TO volumeserial DO YOU WISH TO CONTINUE? RESPOND YES, OR OR REREAD: yes RESTORING volumeserial DATA DUMPED mm/dd/uu AT hh.mm.ss GMT FROM volumeserial RESTORED TO volumeserial INPUT CYLINDER EXTENTS OUTPUT CYLINDER EXTENTS START STOP START STOP
If the original DDR DUMP used multiple tapes, DDR will call for successive tapes with the following messages:
END OF VOLUME CYL nnnnnnnn HD nn, MOUNT NEXT TAPE hh:mm:ss HCPERP2233I TAPE tapeaddress NOT READY, CP-OPERATOR NOTIFIED
When the DDR RESTORE is completed, the tape is rewound and the following message is displayed:
00000000 00001769 00000000 00001769 END OF RESTORE BYTES RESTORED nnnnnnnnnn
Documentation for the DDR program is available in the IBM manual CP Command and Utility Reference (SC24-5773). This manual is available on CD-ROM in the Disaster Recovery Lock Box (IBM Online Library: VM Collection).
Additional details on the use of DDR for restoring the VM/ESA Starter System are in the VM/ESA Installation Guide (SC24-5748) in section PART 2 (VM/ESA System DDR Installation). This manual is also on the same VM Collection CD-ROM.