Reducing MVS™ common system area requirements

This can be the most productive area for tuning. CICS® installations that have not previously tuned their ESA system may be able to recover 1.5 to 2.0 megabytes of virtual storage. This topic is outside the scope of this book, but you should investigate it fully before tuning CICS. A manual that gives information about this is the z/OS MVS Initialization and Tuning Reference manual.

Related tasks
MVS and DASD: improving performance
Splitting online systems to improve availability
Making CICS nonswappable
Increasing the CICS region size
Using job initiators
Tuning the region exit interval (ICV)
Using LLA (MVS library lookaside)
DASD tuning
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