> Long prior to the advent of SDB, I had formed the habit of omitting > BLKSIZE in my Rexx EXECs. The Rexx function library was smart: > it chose good BLKSIZEs and/or I didn't much care about fractional > deviations from absolute optimality. And, for all I knew (and didn't > care) it adapted well to different device types.
If I may quibble a bit with the reference to "Long prior to the advent of SDB": REXX on MVS was introduced in TSO/E Version 2.1 for MVS/XA and MVS/ESA. I don't remember exactly when that was shipped, but I think it would have been in the 1987-1988 timeframe. I don't remember exactly when SDB was introduced, but I found an APAR OY19694 which was opened on January 5, 1989 for an SDB-related issue. Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
