Brian Westerman wrote: >I'm not even sure that IFL's were supported then.
IBM discontinued program services for OS/390 Version 1 Release 3 on March 31, 2001. I haven't been able to find the exact date IBM introduced IFLs, but it was no later than September, 2000, and they were available on machines as old as the System/390 G5 models introduced in 1998. So, OS/390 1.3 and IFLs were IBM supported contemporaries of one another for at least several months. However, that shouldn't matter. The IBM z890 does not support z/VM Mode LPARs, so it's not possible to mix CPs (with or without specialty engines) and IFLs in the same LPAR. z/VM Mode LPARs were introduced on the z10 models (2008). ICFs were not alien to OS/390 1.3, but zAAPs (available on z890/z990 through zBC12/zEC12) were/are. The z890 predates zIIPs (z9 and newer), so zIIPs won't be a factor on a z890. As a reminder to the original poster, just make sure you have a license from IBM to run OS/390 Version 1 and whatever else you're running. "Contact your friendly IBM representative." -------------------------------------------------------------------------------------------------------- Timothy Sipples IT Architect Executive, Industry Solutions, IBM z Systems, AP/GCG/MEA E-Mail: [email protected] ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
