Jacky, With response time goals in CICS, the CICS STC service class is only used at start up. After that WLM builds its own own groups to put CICS address spaces in. Depending on the CICS transactions within an address space and how they are achieveing their goals, the CICS address space as a whole is put in the appropriate group. WLM can only manage CICS at the address space level. What you find is that all your CICS address spaces move together if you distribute the same transactions across all your CICS. You can see this in RMF II where all the AORs may have the same dispatching priority and maybe your TORs have another priority.
There is a presentation on the IBM WLM web site describing this. http://www-03.ibm.com/servers/resources/servers_eserver_zseries_zos_wlm_pdf_cidwlm_pdf_cidwlm.pdf Terry Draper zSeries Performance Consultant [email protected] mobile: +966 556730876 ________________________________ From: Jacky Bright <[email protected]> To: [email protected] Sent: Thursday, 4 June, 2009 2:04:14 PM Subject: WLM Service Class assignment Order Can anyone tell me how WLM decides which service class to assign to CICS Subsystem ? I have following Classification Rules defined in system. For the type CICS following are the entries : Qualifier Qualifier Starting Service Report # type name position Class Class - ---------- -------------- --------- -------- -------- 1 SI RTGCICS CICS1TP RTG3T 2 . TN . M* CICS1TP IASP 2 . TN . V* CICS1TP NDSAP 1 SI R1%CICS CICSSLA and For the type STCS following are the entries : Qualifier Qualifier Starting Service Report # type name position Class Class - ---------- -------------- --------- -------- -------- 1 SYG ABCRL SYSSTC 2 . TN . R1%CICS CICSSTC RCICS 2 . TN . E%CICS CICSSTC ECICS 2 . TN . R%CICS CICSSTC FCICS In my SDSF for DA panel I can see that for R*CICS region the Service Class is CICSSTC. But confused whether there is any significance for the entry defined for type CICS. i.e. CICSSLA service Class. JAcky ---------------------------------------------------------------------- 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
