On Thu, 28 Feb 2019 at 06:27, Larre Shiller <[email protected]> wrote:
> A JES3-to-JES2 conversion effort is a high risk change that requires > essentially the same level of effort as a conversion from one platform to > another--but it has the disadvantage of a 100% "must-go-right" overnight IPL > switch. I'm not so sure... Is it not possible to run JES2 and JES3 at the same time on a z/OS image? Certainly you can run multiple JES2s. Yes, there are a few things that a secondary JES can't do, but I would think that would be the way to convert. Of course at some point you have to switch which is the primary JES, but is that really such a risk. Anyway, I'm not trying to minimize the effort or risk of a conversion; just not sure that it has to be Big Bang. > On the other hand, moving to a different platform allows a staged application > migration [...] And how's that been going for most shops? Tony H. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
