Connecting Switch Attach Configurations; Dual-Controller Configuration; Connecting Hosts: S3200 Switch Attach-Two Servers/Two Switches; Connecting Hosts: S2200 Switch Attach-Two Servers/Two Switches - Lenovo S3200 Setup Manual

Connecting switch attach configurations

A switch attach solution—or SAN—places a switch between the servers and the controller enclosures.
Using switches, a SAN shares a storage system among multiple servers, reducing the number of storage
systems required for a particular environment. Using switches increases the number of servers that can be
connected to the storage system. A S3200/S2200 controller enclosure supports 64 hosts.

Dual-controller configuration

Two servers/two switches
S3200 CNC
S2200 CNC
38 Connecting hosts
Server 1
Switch A
Figure 27 Connecting hosts: S3200 switch attach—two servers/two switches
Server 1
Switch A
Figure 28 Connecting hosts: S2200 switch attach—two servers/two switches
Server 2
0A
S
A
6Gb/s
S
0B
S
6Gb/s A
S
Server 2
0A
6Gb/s
0B
6Gb/s
Switch B
Switch B