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09644 - Moving 4.0B systems

09644 - Moving 4.0B systems

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Moving 4.0B systems


We are running SAP 4.0B, kernel patch 958 on iSeries V5R1. We have our
production (PRD) instance on one machine and our development (TST) and test
(QAS) instance on another.

When we first implemented SAP, we had all three instances on the PRD machine.
DASD usage was an issue at the time and a decision was made to move TST and QAS
to the other machine. We had consultants that performed this move.

We are preparing for an upgrade to the latest version of SAP. We only use FI
and CO.

Now, the time has come for the TST and QAS instances to move back to the PRD
machine. I feel certain that I can do this but I want to have an action plan
before I start.

My question concerns whether to treat the movement of the TST and QAS instances
as if they were copies or as if they were new installs (and yes, I remember the
license keys issue). Since we are at 4.0B, the installation CD and the
Installation guide are very dated. In fact, we are now using the 40B_COM kernel
and I do not know how that will impact the process.

Basically, I could either use the LODRUN command and cancel at the appropriate
point and restore the saved R3TSTDATA library from there, just like a refresh,

***OR***

I could use the CREATE COLLECTION R3<sid>DATA command and just restore the data
library and the kernel library and treat it as a restore, handling the IFS
connectivity and TMS rebuild manually.

Since PRD is already on the machine, couldn't I simply use ADDR3SYS command and
avoid all the drama associated wth the ancient CD and LODRUN?

If anyone has been through a similar situation, any advice and/or insight would
be greatly appreciated.

Robert Clay


Opinions expressed are my own and not necessarily those of my employer.


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