IBM DU3 2104 Hardware Technical Information page 19

Expandable storage plus
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Host bus adapter (HBA)
ID:5 or 6
Terminator
SCSI
interface
card
0 1 2 3 4 X X
Terminator
12 disk drive modules
Figure 5. Single Bus, Two Initiators, 12 Disk Drive Modules
Notes:
1. The two Host Bus Adapters cannot have the same SCSI address.
2. Disk drive slots 6 and 7 (SCSI IDs 5 and 6) have dummy disk drive modules
installed in them.
Note: In this configuration, SCSI addresses 5 and 6 cannot be used for disk drive
modules.
Terminator
Repeater
Enclosure
service
processor
Terminators
Repeater
Host bus adapter (HBA)
ID:6 or 5
Repeater
Enclosure
service
processor
8 9 10 11 12 13 14
Terminator
Backplane
SCSI bus
bridge card
Chapter 1. Introduction
SCSI
interface
card
11

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