> -----Original Message----- > From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On > Behalf Of Timothy Sipples > Sent: Wednesday, June 27, 2007 10:28 PM > To: IBM-MAIN@BAMA.UA.EDU > Subject: Re: Finally get to go from os390 2.10 to zOS 1.8 > > Tom Kelman asks: > >Boy, those going from OS/390 V2R10 to z/OS V1R8 are making a pretty big > >leap. We went from z/OS 1.4 to 1.7 and we're told we couldn't go > >directly to 1.8. How are you able to skip so many releases? > > A pattern that's very common in Japan, for example, is a "new footprint" > build. That is, some shops will buy a new mainframe, load it up with > current OS and software, copy the applications over and create test data, > test thoroughly (and test again), then cutover when ready, sometimes in > stages (if they have application "silos" that are separable). It's not my > favorite way to get the job done, and many organizations are discovering > that rolling online upgrades really do offer numerous benefits, notably > continuous business service delivery, but the classic method still works. > > Also, I don't think I'm revealing any secrets in saying that it's not just > third parties that'll assist with giant OS version leaps. There's an IBM > service offering in Japan (for a fee) to leap from OS/390 V2R10 straight > to > z/OS 1.6 in one shot. There are some odd government rules that pretty > much > force banks to do this sort of thing. > > All that said, it's way easier to migrate from OS/390 V2R10 to z/OS 1.8 > than it is to migrate to another operating system. Way, way, way easier. > And, once you do get current, please don't let this happen again. Stick > to > the N-minus migration steps. You'll be way, way, way happier. So will > your wallet. > > - - - - - > Timothy Sipples
Wow, that is WAY WAY WAY WAY good to know! /J ---------------------------------------------------------------------- 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
