It looked like - in some data I had last year and the year before - Master Scheduler Address Space REAL memory was growing. Maybe related. And "looked like" because there isn't an accurate REAL memory number in Type 30 SMF.
Cheers, Martin Martin Packer, zChampion, Principal Systems Investigator, Worldwide Banking Center of Excellence, IBM +44-7802-245-584 email: [email protected] Twitter / Facebook IDs: MartinPacker Blog: https://www.ibm.com/developerworks/mydeveloperworks/blogs/MartinPacker From: Rob Scott <[email protected]> To: [email protected] Date: 19/05/2014 10:36 Subject: Re: Master Address Space - High E-SQA Sent by: IBM Mainframe Assembler List <[email protected]> Jake, To diagnose this you need to ensure that you have SQA tracking enabled in your DIAGxx PARMLIB member. This tells z/OS to create "breadcrumb" control blocks that track all allocations of SQA. I believe that most z/OS sites run with both SQA and CSA tracking enabled. If CSA/SQA tracking is enabled, then the system creates a GQE control block that describes the allocated chunk of CSA/SQA and links it to a CAUB control block that describes the owner of the storage. To analyze the SQA usage, you need a program that processes the GQEs and CAUBs. Most (if not all) z/OS monitor software products have this feature, and I think you can also use IPCS VSMDATA to show the information if you are without a commercial tool. Note that if CSA/SQA tracking is dynamically activated it will only track new CSA/SQA allocations. Rob Scott Lead Developer Rocket Software 77 Fourth Avenue . Suite 100 . Waltham . MA 02451-1468 . USA Tel: +1.781.684.2305 Email: [email protected] Web: www.rocketsoftware.com -----Original Message----- From: IBM Mainframe Assembler List [mailto:[email protected] ] On Behalf Of Jake anderson Sent: 19 May 2014 09:52 To: [email protected] Subject: Master Address Space - High E-SQA Hello All, Recently in our shop we were seeing a spike in E-SQA. It showed that master address space were at 13.6mb which was considered little on higher side. We also found a users job was also eating more E-SQA. After cancelling user job we got a relief of 5 percentage. Are there any eye catchers or any other way to find the module or programs that influence master address space E-SQA consumption. Jake Unless stated otherwise above: IBM United Kingdom Limited - Registered in England and Wales with number 741598. Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU
