I guess I am curious. I have asked our folks to start a project to convert to MSGBASED. I think all the APARs have closed. I'm primarily interested in improving the failover processing that MSGBASED is supposed to address, and the reduced I/O that is promised. Keep us posted on your success and the issues it took to get there.
-----Original Message----- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Knutson, Sam Sent: Tuesday, July 08, 2008 SYSN 12:31 PM To: [email protected] Subject: Using SETXCF START,MSGBASED exploit MSGBASED processing for CFRM? Hi, I had followed a number of APARs including OA24563. We are now at a point where we are considering exploiting MSGBASED processing for CFRM. I am almost ready to issue SETXCF START,MSGBASED and do this in our test Sysplex (2 LPARs). Before we jump in I wanted to know who else has tried this and have you seen any reduction in I/O to the couple data sets? Any problems? How many systems in your Sysplex? We have 7 LPARs currently in our production Sysplex down from 9 after we managed to push a couple sandbox systems into a test only Sysplex. We have had issues with backups of the volumes that contain the CDS (ancient history but still remembered here. The problems predated conversion of all RESERVEs and several generations of DASD upgrades but an all systems outage resulted from a DFDSS backup being attempted. These volumes are backed up every day along with everything else but use FDR. I doubt today with Flashcopy II on 2107, z/OS 1.8, all RESERVE converted that a DFSMSdss flashcopy backup would cause any problems but want to see if we can lower the I/O to the volumes. For the morbidly curious the CDS volumes here are laid out as below ranked from most I/O to least I/O by volume. Data Sets on volume OSYS01 SYS1.CFRM.CDS01 SYS1.LOGR.CDSP2 SYS1.WLM.CDS02 SYS1.XCF.CDS02 Data Sets on volume OSYS00 SYS1.ARM.CDS01 SYS1.SFM.CDS01 SYS1.WLM.CDS01 SYS1.XCF.CDS01 Data Sets on volume OSYS02 SYS1.ARM.CDS02 SYS1.CFRM.CDS02 SYS1.LOGR.CDSP1 SYS1.SFM.CDS02 Best Regards, Sam Knutson, GEICO Performance and Availability Management mailto:[EMAIL PROTECTED] (office) 301.986.3574 "Think big, act bold, start simple, grow fast..." ==================== This email/fax message is for the sole use of the intended recipient(s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution of this email/fax is prohibited. If you are not the intended recipient, please destroy all paper and electronic copies of the original message. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
