I have a Hp Storage Works Modular Smart Array 30 (might be the earlier 4400 family) with a dual port SCSI module. I attached it to one port of a Smart Array 6400 controller in a Proliant ML 370. Seven of the 14 drives were available so I assumed I needed to attach the second port to get all drives. I installed a second 6400 controller in the server and attached both SCSI ports from it to the enclosure. Now the storage enclosure is not responding at all. The controller shows up, but it sees no drives and during boot up says :Storage enclosure not responding.
I know controller is good, and I have updated controllers and drives with latest firmware. What might I do to troubleshoot this?