> -----Original Message----- > From: IBM Mainframe Discussion List > [mailto:ibm-m...@bama.ua.edu] On Behalf Of gsg > Sent: Tuesday, August 18, 2009 4:52 PM > To: IBM-MAIN@bama.ua.edu > Subject: LPAR strictly for CICS Onlines > > We've been having a bunch of problems CICS short on storage , > max task > etc... and I posed the question can we create a LPAR > specifically for our CICS > regions and another for our batch. I don't know if it is > even possible. Does > anyone currently do something like this? If so, how do you > open/close files via > your batch jobs.
I agree with the "why do that?" question. Back in MVS/370, we had two MVS systems. One was IMS, the other batch. But that was back when IMS need a LOT of CSA and our batch needed more private. In today's world, this should not be needed. For SOS, you need to either increase the DSAs or decrease the MAXTASKS. To me, this sounds like you might not have enough CPU power to process your transaction load. You might want to check your WLM settings for your CICS regions. Our CICSes run in a service class which is marked as CPU CRITICAL so that WLM won't steal CPU cycles for other work in a 100% CPU situation. Splitting the system in two would likely increase this problem due to increased z/OS overhead (two systems' worth of overhead vs. only one). If you are in a SYSPLEX, then your batch jobs on one LPAR can issue an operator ROUTE command similar to: RO cicslpar,F cics,CEMT SET FILE(ddname) CLOSED This can be via a program which issues SVC 34 or just submits the commands via the INTRDR, if the INTRDR is set up to allow that (most are not due to security). You also might be able to use an EXCI to talk via LU 6.2 from your batch job to your CICS region over VTAM, if you put up a cross domain to have the two VTAMs talk to each other. You might even be able to do it using TCPIP over Hipersockets between the TCPIP stacks on the two systems. That depends on your software levels. -- John McKown Systems Engineer IV IT Administrative Services Group HealthMarkets(r) 9151 Boulevard 26 * N. Richland Hills * TX 76010 (817) 255-3225 phone * (817)-961-6183 cell john.mck...@healthmarkets.com * www.HealthMarkets.com Confidentiality Notice: This e-mail message may contain confidential or proprietary information. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. HealthMarkets(r) is the brand name for products underwritten and issued by the insurance subsidiaries of HealthMarkets, Inc. -The Chesapeake Life Insurance Company(r), Mid-West National Life Insurance Company of TennesseeSM and The MEGA Life and Health Insurance Company.SM ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
