True for ESCON, which is synchronous (send command, wait for response). Not true for FICON, which is asynchronous (send command, release, receive response, release).
On Mon, Apr 15, 2013 at 7:53 AM, Staller, Allan <[email protected]> wrote: > > IO is queued on the UCB. If the OS thinks the volume is busy, the IO is > queued without even being attempted, IIRC. > -- 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
