Hi, This isn't risky at all. I have performed 3 conversions just in 2006 from OS/390 2.9 and 2.10 to z/OS 1.7 and last year I performed 11 upgrades from various levels of OS/390 (2.7 to 2.10) to Z/OS 1.5 & 1.6.
There are some things to look out for, and some things that you shouldn't do. You can share catalogs, but you should be careful not to cache them in VLF during the conversion. RACF will also not be an issue as you can copy the database over to 1.7 with no problems. I was able to share the RACF database between OS/390 and z/OS 1.5 but I have not tried to share between OS/390 and 1.7, but I don't think that most conversion scenierios would require you do that anyway. You do not need to offload the JES2 data either, just set up an NJE connection between the systems and you can deal with output with much less work, plus it will make you conversion less of a either/or operation and much less hassle for everyone. Your operators will be happy because they can keep the printers where they are. Don't let people tell you that you have to follow IBM's "recommended" upgrade path, it's really not going to help you at all, since the path that is offerred isn't really supported in any way, so you don't gain anything and you loose a lot of time, plus your users will get very frustrated with having to go through upgrade testing twice in a short period of time. If you have any specific questions, I would be happy to answer them for you, just send me a note offline. Brian Westerman Email = [EMAIL PROTECTED] ---------------------------------------------------------------------- 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

