I was referring specifically to the thread's topic of "switching between", not to "using" SMT-2.
I fully agree that you might choose not to use. It would be less likely that you'd go through the hassle of "switching". Peter Relson z/OS Core Technology Design ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN