Dell PowerVault NX3500 Administrator's Manual page 34

All-in-One High-Availability Option
In an all-in-one high availability option, the redundant switches host both
SAN/internal and client network traffic. The SAN/internal and client cables
are split between the redundant switches. Peer connections are always back to
back.
Figure 2-3. All-in-One High-Availability Option
34
Setting Up Your PowerVault NX3500 Solution
Switches
Controller0
Controller1
MD32
Client Connections
Internal Network and SAN Connections
Peer Connections
xx
0i