One Ds4700 Express And Three Exp810 Storage Expansion Enclosures Behind A Pair Of Ds4700 Drive Ports - IBM DS4700 Installation, User's, And Maintenance Manual

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Figure 73. One DS4700 Express and three EXP810 storage expansion enclosures behind a
pair of DS4700 drive ports
Perform the following steps to create the recommended cabling scheme shown in
Figure 73:
1. Connect port 1A on the left ESM in the first EXP810 ( 2 ) to port 1B ( 1 ) on
the left ESM in the third EXP810 ( 4 ).
2. Connect port 1A on the right ESM in the third EXP810 ( 4 ) to port 1B ( 1 ) on
the right ESM in the first EXP810 ( 2 ).
3. Connect port 1B ( 1 ) on the left ESM in the first EXP810 ( 2 ) to port 2 of
drive channel 1 on the DS4700 Express.
4. Connect port 1 of drive channel 2 on the DS4700 Express to port 1B ( 1 ) on
the right ESM in the third EXP810 ( 4 ).
5. Connect port 1B ( 1 ) on the left ESM in the second EXP810 ( 3 ) to port 1 of
drive channel 1 on the DS4700 Express.
6. Connect port 1B ( 1 ) on the right ESM in the second EXP810 ( 3 ) to port 2 of
drive channel 2 on the DS4700 Express.
Figure 74 on page 92 shows the recommended cabling scheme for one DS4700
Express Storage Subsystem and four EXP810 storage expansion enclosures
behind both ports of a dual-ported drive channel.
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Chapter 3. Cabling the storage subsystem
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