>Don't put the primary and backup on the same dasd. The whole point of the >backup is to have a good database in case you get a >h/w failure on the >primary volume.
Seems that with modern DASD, one never gets a volume failure anymore. You either lose nothing or you lose the whole darn subsystem or big chunk of it. Put it on a different box :) Or use PPRC to a different box if it really is that critical. If not, take regular, frequent backups to tape. Marcy "This message may contain confidential and/or privileged information. If you are not the addressee or authorized to receive this for the addressee, you must not use, copy, disclose, or take any action based on this message or any information herein. If you have received this message in error, please advise the sender immediately by reply e-mail and delete this message. Thank you for your cooperation." Don't put the primary and backup on the same dasd. The whole point of the backup is to have a good database in case you get a h/w failure on the primary volume. If your storage controller allows it you can carve out smaller volumes (e.g. 200 cyls). While it might be wasteful, database integrity is more important than unused cylinders. Alan Altmark z/VM Development IBM Endicott
