Mike, I really appreciate your response. I am someone that was asked to oversee RMM and am not completely familiar with the workings of RMM and with that said I would like to see an example supplied and discussed in the I & C manual under the chapter titled Monitoring the Space Used by the Control Data Set to run jcl like the one supplied in the Moving the Control Data Set that uses the Backup(DSS) example to copy the cds to a new cds. Your example could include a Backup(DSS) step and a then a step to RENAMEU the old cds to a new cds name then discuss the HURBA/HARBA * 100 calculation to show the programmer the percentage of free space actually inside the working cds. We do not regularly reorganize our CDS but we are I the process of moving it and found out that we are only using 25% of 41000 tracks (in 5 extents) in our working CDS. That is a lot of wasted space that I did not find out about until I HAD to move our CDS. This will all be a moot point once we turn on CA RECLAIM. Sorry for the rant.
Thank you, Wayne Schroeder MAINFRAME STORAGE ADMINISTRATOR T 254.399.5070 M 254.644.8534 E [email protected] 7420 Fish Pond Rd. Waco, TX 76710 -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of Mike Wood Sent: Wednesday, July 17, 2013 4:17 AM To: [email protected] Subject: Re: RMM CDS utilization vs 3.4 utilization Wayne, It is best to follow the recommendations in the DFSMSrmm Implementation & Customization Guide. They were written based on lots of experience with many different installation. The CDS utilization is simply HURBA/HARBA * 100 It makes no account for empty space in CIs or CAs, nor for the potential to grow the CDS into multiple extents. To determine really what space is actually used, you could define a VSAM KSDS like the CDS and repro the records from the CDS to the new KSDS and see what the HURBA/HARBA is then. VSAM is now very good at reusing empty space within already used CAs and CIs (CAs with R12+). Mike Wood rmm expert ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN [http://infonet.txfb-ins.com//images//email-signature-image.jpg] WWW.TXFB-INS.COM<http://www.txfb-ins.com> CONFIDENTIALITY STATEMENT: The foregoing message (including attachments) is covered by the Electronic Communication Privacy Act, 18 U.S.C. sections 2510-2521, and is CONFIDENTIAL. If you believe that it has been sent to you in error, do not read it. If you are not the intended recipient, you are hereby notified that any retention, dissemination, distribution, or copying of this communication is strictly prohibited. Please reply to the sender that you have received the message in error, then delete it. Thank you. Texas Farm Bureau Insurance Companies received the highest numerical score among auto insurance providers in Texas in the proprietary J.D. Power 2013 U.S. Auto Insurance Study(SM). Study based on 45,521 total responses measuring 8 providers in Texas and measures opinions of consumers with their auto insurance provider. Proprietary study results are based on experiences and perceptions of consumers surveyed March –April 2013. Your experiences may vary. Visit jdpower.com. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
