(IBM Mainframe Discussion List) wrote:
They can also do I/O without any allocation, TIOT entry, DD statement, enqueue, open, etc. All they need is a UCB address, some CCWs somewhere, and about 150 bytes of ECSA.
Of course ... using the low-level STARTIO interface. But, dynamic data set allocation serves a useful purpose in MVS. And, OMVS uses it.
-- Edward E Jaffe Phoenix Software International, Inc 5200 W Century Blvd, Suite 800 Los Angeles, CA 90045 310-338-0400 x318 [EMAIL PROTECTED] http://www.phoenixsoftware.com/ ---------------------------------------------------------------------- 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
