IT Answers » z/OS optimization http://itknowledgeexchange.techtarget.com/itanswers Fri, 24 May 2013 09:10:02 +0000 en-US hourly 1 Reducing DISK I/O z/OS 1.4 http://itknowledgeexchange.techtarget.com/itanswers/reducing-disk-io-zos-14/ http://itknowledgeexchange.techtarget.com/itanswers/reducing-disk-io-zos-14/#comments Wed, 23 Mar 2005 15:44:11 +0000 Abbacabba I have a C loadmodule that is called 1000′s of times a day.
The first action it takes is to open a PDS with 41 members and read them. This PDS’s members are only “text”, no load modules.

I would like to know in what way I could cache them in memory and totally bypass DASD disk I/O.

Thank you,
John Fly

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