Ds470056

Figure 74. One DS4700 Express and four EXP810 storage expansion enclosures behind a pair of DS4700 drive ports

Perform the following steps to create the recommended cabling scheme shown in Figure 74:

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 1A on the left ESM in the second EXP810 (3) to port 1B (1) on the left ESM in the fourth EXP810 (5).

6.Connect port 1A on the right ESM in the fourth EXP810 (5) to port 1B (1) on the right ESM in the second EXP810 (3).

7.Connect port 1B (1) on the left ESM in the second EXP810 (3) to port 1 of drive channel 1 on the DS4700 Express.

8.Connect port 2 of drive channel 2 on the DS4700 Express to port 1B (1) on the right ESM in the fourth EXP810 (5).

92IBM System Storage DS4700 Express Storage Subsystem: Installation, User’s and Maintenance Guide