Sheldon 

The straightforward answer is "it depends". 

You really shouldn't group all the DB components into a single service class
as some must have priority and the TP should remain separate from the DBMS. 

For example, your IRLM address space must have higher priority than the
other DBMS address spaces. 

Within CICS you will have to decide whether you're going to manage CICS
towards a REGION goal or a transaction response time goal and set up you
service classes accordingly. 

Don't make things too complicated, since above a certain limit, your
manageability costs will outweigh the benefits. 

For more info: http://www.redbooks.ibm.com/abstracts/sg246472.html?Open
    

Meir Zohar
CISSP, IBM Certified DBA for DB2 for z/OS
 
email: [EMAIL PROTECTED]
 
-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf
Of Sheldon Davis
Sent: Tuesday, July 03, 2007 11:02 AM
To: [email protected]
Subject: WLM Question

Hi

We work with CICS DB2 and IMS DBCTL
At the moment we use region mode for CICS.
Should I have one service class for CICS DB2 and IMS
Or one for CICS and one for DBMS's

Thanks in advance

Sheldon Davis

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