On Sat, 8 Feb 2014 10:32:59 -0800, Skip Robinson <jo.skip.robin...@sce.com> wrote:
>As for location, in a distant galaxy long ago, SLED DASD liked VTOC and >VVDS (did that exist then?) located in the middle of the volume to >minimize head movement. (Nod if you agree.) Yes, of course the VVDS existed. Been there since ICF (MVS/SP 1.3 ?). I don't agree or disagree. I will say that I always put them up front as contiguous space was more import to me back then and the majority of the shops I was at did the same thing. But there were also a large number that did it exactly like you. BTW, your point about "one size does not fit all" is a good one. The default size I set is for 3390-9, but because we have a large number of 3390-27 and 3390-54 is probably why the storage team defines the VVDS at the time they provision the volume for use. I have no EAV experience yet. Mark -- Mark Zelden - Zelden Consulting Services - z/OS, OS/390 and MVS ITIL v3 Foundation Certified mailto:m...@mzelden.com Mark's MVS Utilities: http://www.mzelden.com/mvsutil.html Systems Programming expert at http://search390.techtarget.com/ateExperts/ ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
