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2 Cabling Storage Devices and Setting SCSI Addresses
21
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Duplex Configuration
C20
C20
C11
External terminator
built into cable
SCSI Device
Shelf
SCSI Device
Shelf
Hot Swap
Subsystem
Internal
terminator
SCSI B
SCSI C SCSI D
SCSI A
Figure 2-5. Duplex Configuration
In this example, the SCSI device shelves are connected to the upper hot-swap
cage. Make sure the addresses in the SCSI device shelves are unique to each
device, including the hot-swap disk modules. SCSI A cannot be connected to a
DAC card. SCSI B can be connected to a DAC card.
For internal cable part numbers, see the “Cabling Diagram Legend.” To change
the SCSI addresses, see the “Setting SCSI Addresses” section.