IBM TotalStorage DS4300 Turbo, Инструкция по установке, использованию и обслуживанию

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Connecting the redundant EXP810 drive loop to the DS4300
After you configure the redundant drive loop using the EXP810 storage expansion
enclosures, use the following procedure to connect a redundant drive loop to the
DS4300 Storage Subsystem. You will need two fiber-optic cables to connect the
redundant drive loop pair (for example, loop A and loop B) to the DS4300 Storage
Subsystem.
1. Connect drive loop A to the DS4300 Storage Subsystem, as shown in Figure 54
on page 70.
Starting with the last (fourth) storage expansion enclosure in loop A, connect
port 1B on the ESM A board to the expansion port located in controller A
module/CRU on the DS4300 Storage Subsystem.
Leave port 1A on the ESM A board on the first EXP810 storage expansion
enclosure unoccupied.
EXP810
ESM B
ESM A
EXP810
ESM B
ESM A
EXP810
ESM B
ESM A
EXP810
ESM B
ESM A
Port 1B
Port 1B
Port 1A
Port 1B
Port 1A
Port 1A
Port 1B
Port 1A
Port 1B
Port 1B
ds4500_8104
Loop B
Loop A
First storage
expansion enclosure
Second storage
expansion enclosure
Third storage
expansion enclosure
Fourth storage
expansion enclosure
Port 1A Port 1B
Port 1A Port 1B
Figure 53. Connecting additional EXP810 storage expansion enclosures to drive loops A and
B
Chapter 3. Cabling the storage subsystem
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