9405-520 DIsk Location Resource Questions and SRC Code

Hello,

Over the last 25 years I have been a system administrator for several IBM AS400 and IBM i systems through my employment. Much was self-taught as I received little to no training. Of course I would never do anything physical or risky to those machines. I still love the platform today and have recently started refurbishing a used (unwarrantied) tower Type 9405 Model 520 system for maintaining and advancing my skills.

In the process of wiping my used system and preparing to clean install, I think I created a resource location problem. All 8 drives were physically moved into different bays and then the disks initialized by DST. Perhaps these physical location changes confused the "service processor" because I now get an SRC code at IPL.

Upon reinstalling V7R1 base LIC, but without yet installing OS or PTFs, a manual "A" IPL always generates an SRC B155B017 in the service action log. In packaging resources, I found 4 of my drives (type 4326) correctly show up under the "System Unit" (SECOND branch of the tree, sitting below "System" branch) for Backplane P3 (the higher mounted 28D2 array in the tower).

However my 4 remaining drives (type 4327) do NOT show up under the tree for expected Backplane P2 (the lower mounted 28D2 array in the tower). Backplane P2 only shows 4 instances of "Empty Position" when I review it. All 4 of these Disks Units are operational and can be initialized, but they are showing up under "System" (the FIRST branch of the tree) and appear with a location designated (Planar) P1-T11- etc.

Am I correct that I created this problem by physically moving the disks without knowing how to update the resource location mapping? Are all of these issues related to my SRC code? How do I resolve it, step by step would REALLY help please!

MANY THANKS in advance,

Shawn