Remember, this was back in the very early 1980's when IBM still distributed source code. It was written before my time, but I had to support it. That's when I learned about how to debug Standalone dumps and how to follow control block chains. I was VERY glad when we finally got rid of it (but on the other hand, it was a great learning experience).
-----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@bama.ua.edu] On Behalf Of Elardus Engelbrecht Sent: Friday, January 13, 2012 7:56 AM To: IBM-MAIN@bama.ua.edu Subject: Re: Master Catalog query Veilleux, Jon L wrote: >In the 'bad old days' we used to manipulate the master catalog initialization >code in NIP to actually do what you are talking about. We had one master >catalog for 'production' jobs and one for 'test' jobs. We zapped the Operating >System code at crucial points (Open, Close, etc), looked at the category of >the job to determine which catalog to use, and then [pointed to the >appropriate master catalog. The confusion this brought on cannot be >overstated! Ouch. If I smell something like this zaps at my work, I will zap myself away... :-D To do you way via zapping is dangerous enough even if it is WAD... jagadishan perumal wrote: >As in general we are aware that we can have 1 master catalog and multiple user >catalogs in a system. It is also factual that we can have alternate Master >catalog with another Updated LOADxx member. Correct. This is to protect your system, by making it difficult to switch catalogs. But on the other side, this is also an easy recovery method in case your Master Catalog is broken or your volume where it resides is broken. This is of course you have a good backup copy residing somewhere. >My question is to know whether if we can have possible to have multiple >master-catalog with multiple user catalog running on a single image? No. [1] If that is possible, I don't know about it. AFAIK, there is only ONE standard catalog search order which ends up in Master Catalog. [2] Groete / Greetings Elardus Engelbrecht [1] - This is not the same concept where you can import a Master Catalog (used by another LPAR) into your system as an User Catalog. [2] - You can bypass standard catalog search order using non-recommended methods (RACF profile or JOBCAT/STEPCAT for example) ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: INFO IBM-MAIN This e-mail may contain confidential or privileged information. If you think you have received this e-mail in error, please advise the sender by reply e-mail and then delete this e-mail immediately. Thank you. Aetna ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: INFO IBM-MAIN
