Thanks for posting!  Have you checked the firmware and driver versions for the PERC 3/Di to make sure they are up to date?  Older firmwares and drivers tend not to work well with recent versions of OMSA.
My PE2650 server has 3 storage adapters: AHA-39160,  PERC 3/Di and PERC 4/DC.   When installing Server Administrator version OM_5.5.0_ManNode_A00, the PreReqChecker show information: "If you are installing Storage Management on your system for the first time, installation may not be able to detect the firmware or device drivers for any PERC 3/Di controllers on the system. See the "Storage" tab in the Server Administrator graphical user interface (GUI) after installation, for more information." I just go ahead and complete the installation. Then I login the OpenManager Server Administrator Website. On the "Storage" tab, I can only find AHA-39160 and PERC 4/DC but no PERC 3/Di.   How to make PERC 3/Di accessable to the Server Administrator, so I can manage the SCSI HDs attathed to it? I appreciate for any suggestion.
Server Administrator can't find PERC 3/Di