Re: AS/400 V4R2-R1 "downgrade"

[therrin@xxxxxxxxx (Terry Herrin)]

>Has anybody tried de-upgrading an AS/400 OS release lately?  We have a 
>customer that wants to move a system from V4R2 back to 
>V4R1 so their secondary system matches that OS/400 release of their production 
>system which can't be upgraded right now. 
>(Their s/w vendor doesn't support V4R3, and they don't want to upgrade twice 
>in rapid succession).  

Besides the fact that down-grading OS/400 would be a nightmare, from
what I hear anyway, there's a few things I don't understand about your
post.  First, why not upgrade the production system to V4R2?  So the
vendor doesn't support V4R3, why does that matter?  Upgrade the
production system to V4R2 and be happy.  Later, when the software
vendor supports V4R3, you can upgrade both machines at that time.  
As for upgrading twice in rapid succession, you could wait a while
before upgrading again.  You could even wait until the next release
and skip a release.  We upgraded from V3R7 to V4R2 on both of our
machines a couple of weeks ago and we had no problems at all.  While
we were at it, we also replaced the 530 hardware with 640's.  With our
HSA software, our end users experienced a grand total of 1 hour and 40
minutes of downtime for the entire project.

Terry Herrin
Sr. Programmer/Analyst
New Hanover Regional Medical Center
Wilmington, NC
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