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Perform the following steps to create the recommended cabling scheme shown in
Figure 65:
1. Connect the OUT port (2) on the left ESM in the first EXP100 (3) to the IN
port (1) on the left ESM in the third EXP100 (5).
2. Connect the IN port (1) on the right ESM in the third EXP100 (5)tothe
OUT port (2) on the right ESM in the first EXP100 (3).
3. Connect the IN port (1) on the left ESM in the first EXP100 (3)toport2of
drive channel 1 on the DS4700 Express.
4. Connect the OUT port (2) on the left ESM in the third EXP100 (5)tothe
IN port (1) on the left ESM in the fifth EXP100 (7).
5. Connect the IN port (1) on the right ESM in the fifth EXP100 (7)tothe
OUT port (2) on the right ESM in the third EXP100 (5).
6. Connect port 1 of drive channel 2 on the DS4700 Express to the OUT port
(2) on the right ESM in the fifth EXP100 (7).
7. Connect the OUT port (2) on the left ESM in the second EXP100 (4)tothe
IN port (1) on the left ESM in the fourth EXP100 (6).
8. Connect the IN port (1) on the right ESM in the fourth EXP100 (6)tothe
OUT port (2) on the right ESM in the second EXP100 (4).
9. Connect the OUT port (2) on the left ESM in the fourth EXP100 (6)tothe
IN port (1) on the left ESM in the sixth EXP100 (8).
10. Connect the IN port (1) on the right ESM in the sixth EXP100 (8)tothe
OUT port (2) on the right ESM in the fourth EXP100 (6).
11. Connect the IN port (1) on the left ESM in the second EXP100 (4) to port
1 of drive channel 1 on the DS4700 Express.
12. Connect port 2 of drive channel 2 on the DS4700 Express to the OUT port
(2) on the right ESM in the sixth EXP100 (8).
ds470054
2
1
2
1
2
1
3
4
5
2
1
6
2
1
2
1
8
7
DS4700
Figure 65. One DS4700 Express and a maximum of six EXP100 storage expansion
enclosures behind a pair of DS4700 drive ports
84 IBM System Storage DS4700 Express Storage Subsystem: Installation, User’s and Maintenance Guide