Ds3500 Storage Subsystem Drive Cabling Topologies; One Single-Controller Ds3500 And Multiple Single-Esm Storage Enclosures - IBM DS3500 Installation, User's, And Maintenance Manual

The DS3500 storage subsystem locates the drives in the storage enclosures after you power-on the
configuration. Always turn on the storage enclosures first and then turn on the DS3500. After you have
powered-on the configuration, use the Storage Manager software to check the status of the new drives,
correct any errors, and configure the new drives.

DS3500 storage subsystem drive cabling topologies

This section describes the following preferred cabling topologies for cabling storage enclosures to the
DS3500 storage subsystem:
v "One single-controller DS3500 and one or more storage enclosures"
v "One dual-controller DS3500 and one storage enclosure" on page 3-22
v "One dual-controller DS3500 and two storage enclosures" on page 3-22
v "One dual-controller DS3500 and up to eight storage enclosures" on page 3-22
If one of these examples is suitable for your hardware and application, complete the cabling connections
as shown in the illustrations. If you have hardware other than what is shown in these examples to
include in your topology, use these examples as a starting point for creating your specific topology.
Note: In storage enclosures that are connected to a dual-controller storage subsystem, you must install
the optional second ESM to support dual redundant drive paths.
One single-controller DS3500 and one or more storage enclosures:
To cable one single-controller DS3500 to one or more single-ESM storage enclosures, connect them as
shown in Figure 3-24.
Figure 3-24. One single-controller DS3500 and multiple single-ESM storage enclosures
3-21
Chapter 3. Cabling the storage subsystem and storage enclosure