How do I get individual SCSI drives to show up as primary/secondary drives?

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http://serverfault.com – I am working on decommissioning an old server for a client. The server is an older Dell PowerEdge 1600sc with four SCSI drives. Two are stand-alone, and the other two are in RAIDx (not sure the actual RAID id). It does not have an integrated RAID controller (nothing under integrated devices in the BIOS related to RAID), the client has a PowerEdge Expandable RAID controller PCI card for that. I can get into the RAID configuration by hitting <Ctrl><M> during the boot cycle, but this doesn't help me out too much since none of the drives are showing up (logical or physical). I just wan (HowTos)