IBM System Storage DS5020

In Figure 57, the Fibre Channel switches are connected together via the inter-switch
link (ISL) to form a single SAN fabric.
In Figure 58 on page 89, the Fibre Channel switches are connected together via the
inter-switch link (ISL) to form a dual SAN fabric.
Host system
with two host
adapters
DS5020
Host system
with two host
adapters
Host system
with two host
adapters
DS5020
Figure 56. Examples of redundant host direct attached Fibre Channel SAN configurations
Host system
with two host
adapters
Host system
with two host
adapters
Switch
Switch
Interswitch link
DS5020
Figure 57. Example of a single SAN fabric configuration
88 IBM System Storage DS5020 Storage Subsystem: Installation, User’s, and Maintenance Guide