IBM TotalStorage DS4200, Инструкция по установке, использованию и обслуживанию, Страница: 91 / 222

Perform the following steps to create the recommended cabling scheme shown in
Figure 47:
1. Connect port 2 of drive channel 1 on the DS4200 Express to port 1B (
1
) on
the left ESM in the first EXP420 (
2
).
2. Connect port 1B (
1
) on the right ESM in the first EXP420 (
2
) to port 1 of
drive channel 2 on the DS4200 Express.
3. Connect port 1 of drive channel 1 on the DS4200 Express to port 1B (
1
) on
the left ESM in the second EXP420 (
3
).
4. Connect port 1B (
1
) on the right ESM in the second EXP420 (
3
) to port 2 of
drive channel 2 on the DS4200 Express.
One DS4200 Express and three or more EXP420 storage
expansion enclosures
To connect three or more storage expansion enclosures to a DS4200 Express
Storage Subsystem, alternately connect a storage expansion enclosure to one of
the drive ports of the dual-ported drive channel then connect to the other port until
all of the storage expansion enclosures are attached. Figure 48 on page 66 shows
the cabling scheme for one DS4200 Express Storage Subsystem and three
EXP420 storage expansion enclosures behind both ports of a dual-ported drive
channel.
ds470038
1
1
1
1
2
3
Figure 47. One DS4200 Express and two EXP420 storage expansion enclosures behind a
pair of DS4200 Express drive ports
Chapter 3. Cabling the storage subsystem
65