Using the 8th character can be very useful for test environments. It lets you select which nucleus module duo to use, so that, for example, if you want to try a change that is normally in IEANUC01/IEANUC21, you can build into an alternate nucleus (e.g., IEANUC02/IEANUC22) and ask that the system use that pair instead.
Peter Relson z/OS Core Technology Design ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
