A PowerEdge 2400 has run for years with 3 SCSI drives in slots #0, 1, & 2. Today, 3 additional drives were added in slots #3, 4, & 5, all 18GB 10rpm drives, identical to one of the existing drives.
On boot-up it began experiencing problems
With a full complement of 6 SCSI drives, only 2 drives are being recognized: the drive in SCSI slot #0 and slot #5. Whats more, the drive in SCSI slot #0 shows up as SCSI ID #8, where in the past it has always been SCSI ID #0.
I have moved the drives around to verify that they are working, and it appears that the problem is NOT the drives. They all work and are recognized for what they are when placed in a functioning SCSI slot.
I have tried placing just 1 or 2 drives in at a time, in varying slots, with the same results.
Does this indicate that the backplane is fried?