4.Connect the OUT port (2) on the right ESM in the second EXP100 (4) to port 2 of drive channel 2 on the DS4700 Express.
One DS4700 Express and three or more EXP100 storage expansion enclosures
To connect three or more storage expansion enclosures to a DS4700 Express Storage Subsystem, alternately connect a storage expansion enclosure to one of the drive ports of the
DS4700
1 | 2 | 1 | 2 |
1
ds470052
2
Figure 63. One DS4700 Express and three EXP100 storage expansion enclosures behind a pair of DS4700 drive ports
Perform the following steps to create the recommended cabling scheme shown in Figure 63:
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) to the 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) to port 2 of drive channel 1 on the DS4700 Express.
4.Connect port 1 of drive channel 2 on the DS4700 Express to the OUT port (2) on the right ESM in the third EXP100 (5).
5.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.
6.Connect the OUT port (2) on the right ESM in the second EXP100 (4) to port 2 of drive channel 2 on the DS4700 Express.
Figure 64 on page 83 shows the recommended cabling scheme for one DS4700 Express Storage Subsystem and four EXP100s behind both ports of a dual-ported drive channel.
82IBM System Storage DS4700 Express Storage Subsystem: Installation, User’s and Maintenance Guide
