Mainframe, MVS and zOS Discussion

Hi,

We are currently working on a MIPS optimization project. During the peak hours, jobs accessing IMS DB keep popping up among the list of high CPU consumers. We have put certain traces as well but are unable to identify the bottlenecks and recommend on the bottlenecks.

Can someone of you please help in understanding the typical IMS bottlenecks, tuning techniques and implementation ideas on the same.

That's a very broad question to have a specific answer. Suggest you've a look at IMS Performance and
Tuning Guide - this should get you started quite well.

Thanks that book helps very much. A great book.