>IT professionals with "80-column minds" are our platform's own worst enemy!
I remember, in the early 1980's (in a chargeback shop), one developer was complaining about his huge storage charges. It turned out that nobody had explained to him the value of blocking files. So, his disk (and tape) files were all blocked at one record. Performance and capacity were major factors for his applications. That's when I wrote my first tech paper, explaining what/why blocking files. It was a mixed 3330/3350 shop, so 6160 (or close to it) was the recommendation (long before SDB). The bills went down, and the jobs sped up. Of course, there were some region size issues, but it was a goodness all around. First letter of commendation I ever got on my file. My point is, that today's application programmers still don't know the simple things, such as: o extents are not a bad thing any more o CA/CI splits (especially CI splits) don't have as big an impact as they used to. o allocating on Cylinder vs Track boundaries don't have a major impact anymore, due to define extent o they still don't understand block sizes It may be an 80-column mind, but I think it's more that nobody spends money on education, these days. - Too busy driving to stop for gas! ---------------------------------------------------------------------- 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
