IBM DS4700 Service Manual

Overview of steps to connect storage expansion enclosures to a
storage subsystem
To connect storage expansion enclosures to the storage subsystem, perform the
following steps:
Note: The following procedures are for "cold-case" procedures (in which the
DS4700 Express is powered down when storage expansion enclosures are
connected, as in the case of initial installation). For "hot-case" procedures (in
which the DS4700 Express is powered on when storage expansion
enclosures are connected), refer to the IBM System Storage DS4000 Hard
Drive and Storage Expansion Enclosure Installation and Migration Guide.
Drive
Channel 1, port 2
Drive
Channel 2, port 1
Redundant
Drive Channel
pair
Left ESM
Left ESM
Left ESM
Right ESM
Right ESM
Right ESM
Drive
Channel 1, port 1
Drive
Channel 2, port 2
Left ESM
Left ESM
Left ESM
Right ESM
Right ESM
Right ESM
DS4700
ds470017
Figure 48. Example of a redundant drive channel pair
Chapter 3. Cabling the storage subsystem 69

IBM DS4700 Specifications

General

Brand	IBM
Model	DS4700
Category	Storage
Language	English