8.1 - 9.0.1 apps timing

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8.1 - 9.0.1 apps timing
Topic Started: May 29 2009, 10:14 AM (254 Views)
georgegraham	May 29 2009, 10:14 AM Post #1
Super Member Posts: 122 Group: Members Member #529 Joined: March 29, 2006	Anyone have any feedback on the go live timing experienced with doing this upgrade "in place"? Seems like we are looking at 30+ hours for one large and 1 small product line by the time you do the 9.0.0 compiles, etc... then run the upgrade programs then do the 9.0.1 env/aps upgrade then recompile - then copy product line back to original name, recompile, etc.... And since the data has to be upgraded during the 8.1 to 9.0.0 step there does not seem to be any real advantage for looking to do this on a separate server. We are looking at trying to not do all of the compiles along the way and only compile enough programs to validate certain steps - and then do the final full compile at the end. Any words of wisdom? Doing this in two steps at two different times (8.1 to 9.0.0 and then 9.0.0 to 9.0.1) does not seem realistic since we would have to plan and do FULL testing for both versions.



3monkeys	Jun 2 2009, 11:31 AM Post #2
Super Member Posts: 168 Group: Members Member #240 Joined: January 13, 2006	I haven't looked into this upgrade yet in detail so somebody PLEASE tell me if I'm wrong. I had heard the 8.1 to 9.0 app upgrade (app only, not LSF9 at the same time) is very similar to previous application upgrades. You'll have your production 8.1 PL, a fresh copy of it as your 8.1 Source and then after the first upgrade a new 9.0 Target. Assuming that is still basically the case, then you'll only need to recompile your new 9.0 apps once (at a minimum) after they are installed the first time. The production upgrade should be just the migration of the 8.1 data into the 9.0 productline. I'd be interested in hearing why you might need to do the recompiling at go-live. The programs themselves were already installed once and compiled then. Unless they changed since then I wouldn't think you'd need to recompile them again just because you're going live. Keep us updated!



georgegraham	Jun 4 2009, 09:35 AM Post #3
Super Member Posts: 122 Group: Members Member #529 Joined: March 29, 2006	If you are going 8.1 to 9.0.0 apps then you are pretty much correct. Our difficulty lies in that we are going to 9.0.1 apps, which requires us to also go to 9.0.1 env - which can't be done ahead of time on production since 8.1 apps do not run on 9.0.1 env! So our go live timing is critical because it is going to involve converting data from 8.1 to 9.0, upgrade env, install and upgrade 9.0.1 apps which upgrades data from 9.0.0 to 9.0.1 - THEN rename product line because we have a LOT of extra stuff tied to the current product line name (and paths, etc...). We had some issued with some of the 8.1 to 9.0.0 jobs so plan to test, test, test.



3monkeys	Jun 5 2009, 06:37 AM Post #4
Super Member Posts: 168 Group: Members Member #240 Joined: January 13, 2006	Gotcha. But what about recompiling? Do you really need to re-do that at go live, or maybe you do because you're changing the PL name. You're going to compile everything once for testing, maybe you don't have to do that step again.



schroncd	Jun 8 2009, 05:40 AM Post #5
Lawson Technorati Posts: 689 Group: Members Member #13 Joined: January 11, 2006	George, I think you may have other options that will minimize your upgrade time. I'd love to discuss them with you. Drop me an email to david at schronce dot net describing where you are now, and where you need to be, and maybe I can give you some ideas to assist in making it an easier transition.


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