> The more CSA/ECSA/SQA/ESQA that is defined, the greater is the > amount of storage that must be permanently fixed. As more storage > is permanently fixed, there is less total real storage available to > support dynamic paging among all the work (jobs, address spaces, > OLTPs, etc.). The less total real storage to support paging, the > paging rate of lower priority work may increase with a corresponding > increase in transaction time. The worst case is to define almost > all of real storage as ECSA, then the system thrashes (does next to > nothing except paging operations).
This is not true. The only real storage cost to defining CSA/ECSA/SQA/ESQA in IEASYSxx is one page (4K bytes) per megabyte defined (for the page table representing that megabyte). Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY ---------------------------------------------------------------------- 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
