We have both a consulting and a software side, on the consulting side the oldest machines we have are:
4 z/800's running os/390 2.10, z/os 1.4, 1.7 and 1.13 2 9672's both running OS/390 1 4381 running MVS/XA All of these are production systems, and for some very special reasons they are at the hardware level specified. In the past 2 years I personally have converted 8 sites from 3 9672's and 5 z/800's to z/114 or newer boxes running z/OS V2.1. All of them were straight jumps to z/OS 2.1 and they were all completely successful. The oldest jump was OS/390 2.7 to z/OS 2.1. Brian ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN