Using large quantities of storage can, in the right situation dramatically improve performance. But (there's always a But...) you need to be VERY careful, make sure that the storage you are going to use is not only available right now but that it will be available for the duration of your job. You also need the ability to back off when the system gets busy for an unexpected reason. The consequences of over committing storage can be catastrophic. If there is a system outage related to storage and you are holding a big chunk, it will be your fault. It doesn't matter what else happened, it's your fault and this time it is not just one person or group, it effects everyone running on the system.
Picture those old movies where there is a line of people. They are asked a question and the guilty party is supposed to step forward. Everyone but one person takes a step back leaving just one person. That person is left with a bewildered look on his face and is instantly guilty. John Reda Syncsort, Inc. 201-930-8260 -----Original Message----- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Knutson, Sam Sent: Friday, November 09, 2007 1:36 PM To: IBM-MAIN@BAMA.UA.EDU Subject: Re: Real storage usage - a quick question <snip> SyncSort or DFSORT will both exploit more memory to improve performance easily. Some adjustments may help things run the way you want. Both SyncSort and IBM provide good advice as well as good software. <snip> Best Regards, Sam Knutson, GEICO System z Performance and Availability Management mailto:[EMAIL PROTECTED] (office) 301.986.3574 ((((DO SOMETHING!) SMALL) USEFUL) NOW!) - computer pioneer Bob Bemer ---------------------------------------------------------------------- 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
