HP Netserver L Server series - Manual (Page 31)

Chapter 3 Installing Mass Storage Devices
25
BACKPLANE A
BACKPLANE B
SCSI Channel A
SC
SI
Ch
a
n
nel
B
Cable B
(Cable A Removed)
Ca
bl
e C
External
SCSI
SCSI 3
SCSI 4
SCSI 5
SCSI 0
SCSI 1
SCSI 2
SCSI Terminator
Cable A = External SCSI Cable
Cable B and C = Short Internal SCSI Cable
Rear Front
Top Connector
Top Connector
Bottom Connector
Bottom Connector
Figure 3-8. Duplexing Using Internal SCSI Cables
Duplexing with a SCSI Host Bus Adapter Card
Follow these steps to duplex the SCSI hard drives using a SCSI Host Bus Adapter
card (see Figure 3-9).
1. Remove Cable C connecting Backplanes A and B. Store the cable for
future use.
2. Disconnect Cable B from SCSI Channel A (on the system board), and
connect it to Channel 0 on the SCSI host bus adapter card.
Ensure the cable is not looped at the Channel 0 connection. The cable
should appear as shown in Figure 3-10.
3. Connect Cable D (the optional SCSI accessory cable) to the top connector
on Backplane B, and to Channel 1 on the SCSI Host Bus Adapter Card.
Ensure the cable is not looped at the Channel 1 connection. The cable
should appear as shown in Figure 3-10.