HP ProLiant ML350 G4 Server - Manual (Page 85)

Server Cabling 85
Array Controller Duplex SCSI Cabling
In the array controller duplex SCSI cabling configuration, the optional PCI array
controller controls up to four hard drives on one SCSI channel and two hard
drives on the other SCSI channel.
Item Component description SCSI IDs managed
1 SCSI cable 4, 5
2 SCSI cable * 0, 1, 2, 3
* One SCSI cable is provided with the server, and one SCSI cable is
provided with the Duplex SCSI Backplane Option Kit.