IBM Partner Pavilion DS4100 - Manual (Page 70)

In Figure 26 on page 39, the fibre channel switches are connected together via the
inter-switch link (ISL) to form a single SAN fabric.
Host system
with two host
adapters
Host system
with two host
adapters
Host system
with two host
adapters
DS4100
Switch Switch
Note: Node level
redundancy with
cluster software.
Host system
with two host
adapters
Host system
with two host
adapters
f10ug028
DS4100
DS4100
Figure 25. Examples of redundant host and drive fibre channel loop configurations (base
storage server)
38 IBM TotalStorage DS4100 Storage Server: Installation, User’s, and Maintenance Guide