CP speaks in 4K blocks... CMS mostly too, but if you insist you can format CMS minidisks with 512, 1K or 2K blocksizes too.
2008/5/19 Gentry, Stephen <[EMAIL PROTECTED]>: > How does zVM store data in it's spool file? More specifically, > in VSE/Power, a decision had to be made as to the block size of the > Power data file (spool file). If you made the block size small, you > utilized space better for small entries but you'd get an increase in > I/O. If you used large block sizes, you reduced I/O but lost space. > For example, if you submitted JCL, say 3 or 4 cards, they would occupy a > whole block. A small report or items in the punch queue worked the same > way. (I haven't worked with VSE in a loonnngg time so this may have > changed.) > I was wondering how zVM stored data in it's spool file. I don't recall > specifying a block size specifically for the spool size. > Thanks, > Steve > -- Kris Buelens, IBM Belgium, VM customer support
