One Dual-Controller Ds3500 And One; One Dual-Controller Ds3500 And Two Storage Enclosures - IBM DS3500 Installation, User's, And Maintenance Manual

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, and must use one of the dual-controller
topologies that are described in this section.
One dual-controller DS3500 and one storage enclosure:
To cable one dual-controller DS3500 to one storage enclosure, connect them as shown in Figure 3-25.
Figure 3-25. One dual-controller DS3500 and one storage enclosure

One dual-controller DS3500 and two storage enclosures:

To cable one dual-controller DS3500 and two storage enclosures, connect them as shown in Figure 3-26.
Figure 3-26. One dual-controller DS3500 and two storage enclosures
One dual-controller DS3500 and up to eight storage enclosures:
To cable one dual-controller DS3500 and up to eight storage enclosures, connect them as shown in
Figure 3-27 on page 3-23.
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System Storage DS3500 and EXP3500: Installation, User's, and Maintenance Guide