San Fabric Dual-Controller, Redundent Connections; Example Of A Single Fibre Channel San Fabric - IBM System Storage DCS3700 Installation, User's, And Maintenance Manual

SAN fabric dual-controller, redundent connections

The following illustrations show a redundant SAN fabric, fibre channel connection from each controller to
multiple HBAs in the same host (redundant host connection).
The Fibre Channel switches are connected together through the Inter-Switch Link (ISL) to form a single
SAN fabric.
Figure 43. Example of a single Fibre Channel SAN fabric configuration
In the following illustration, the Fibre Channel switches are not connected together through an ISL. Each
switch forms its own SAN fabric. This configuration is also the configuration to use for a dual-node
cluster configuration.
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Chapter 3. Cabling the DCS3700