On Wed, 5 Dec 2007 17:13:00 -0800, Edward Jaffe wrote: > >Of course, you're right! CCHHR is five *bytes* long. We currently use >only four bits of the sixteen allocated for HH. So, that means we could >use an additional twelve bits to extend the disk size to 4K times the >current 54GB size! (Thanks for correcting me.) > I'd certainly not correct someone of your expertise without first RTFM, and even then with some trepidation that I might have misinterpreted.
Ummm. Imagine the effect on a "dusty JCL deck" which said, "DD SPACE=(CYL,100)". But perhaps not. ISTM that SMS or DYNALLOC (or maybe even ISPF) sometimes adjusts my requested SPACE to account for the difference between 3380 and 3390. There's a powerful argument here for requesting SPACE in blocks. -- gil ---------------------------------------------------------------------- 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