Actually, take the size of the maximum allocation on a volume (64K tracks (non extended) or largest volume(extended)) and divide by 16 and use that for Primary / Secondary. Storage class can even extend onto 59 volumes.
On Fri, Apr 21, 2017 at 12:52 PM, Paul Gilmartin <[email protected]> wrote: > On Thu, 20 Apr 2017 18:11:33 +0000, Nims,Alva John (Al) wrote: > >>The closest you can get even in 2.02 is to use; BLKsize=### and BLocks . >> > Which goes against IBM's current recommendation to specify BLKSIZE=0 > and to allow SDB to operate. > > JCL has similar archaic restrictions. Why not code > BLKSIZE=0,SPACE=(10000000000,5000000000) -- (10 GB primary, > 5 GB secondary), amounts very reasonable with modern DASD, and > let the OS make the determination of blocks, tracks, or cylinders? > > Programmers focused on foreign systems such as the OP shouldn't be > burdened with knowing details of IBM DASD geometry. > > And why does the ridiculous limit, "Syntax allows for values of 0-16777215" > persist in an OS running on 64-bit hardware? > > --gil > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN -- Mike A Schwab, Springfield IL USA Where do Forest Rangers go to get away from it all? ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
