I never even envisioned automated tools looking at VSAM stats. My ASSumption when reading Mark's posts was that he was referring to individual programmers looking at individual VSAM file stats for guidance. My experience is obviously severely limited in this regard, as in my varied positions over the years the usual case was that all of the applications' datasets (including VSAM) were our (the application programmers') responsibility to feed and care for, and we never had thousands to contend with.
As for my ASSumption on criticality, the normal performance variations (once a good initial design and shakeout was done) for an individual (set of) application file(s) were never that critical unless severe volume increases occurred. A parochial point of view, I must freely admit. I stand humbly corrected. My vision is obviously way too narrow. Peter -----Original Message----- From: Richards.Bob [mailto:[EMAIL PROTECTED] Sent: Tuesday, July 05, 2005 6:32 PM To: IBM-MAIN@BAMA.UA.EDU Subject: Re: IBM VSAM Statistics are often Bogus <Snipped> Your paragraph: "Just because they are not written when something BAD happens is NOT a reason to see them as invalid or useless. Like anything else in this business (or life, for that matter), you need to know what you are talking about when you use statistics to justify a decision." If these statistics were being inspected one-by-one, I might concede that last half of the second sentence. In my experience though, decisions of this sort are being made in an automated fashion without consideration for "knowing what you are talking about". They are being made under *the assumption that the statistics are accurate*, a point that has clearly been demonstrated as wrong! Urgent or critical? Without empirical evidence to the contrary, how can *you assume* that it is neither/nor? I raise your two cents and make it my $.04 cents. <grin> Bob _ This message and any attachments are intended only for the use of the addressee and may contain information that is privileged and confidential. If the reader of the message is not the intended recipient or an authorized representative of the intended recipient, you are hereby notified that any dissemination of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by e-mail and delete the message and any attachments from your system. ---------------------------------------------------------------------- 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
