60 Sun StorageTek 2500 Series Array Hardware Installation Guide • September 2009
FIGURE 4-1 Ethernet Host Ports on the Controllers
The most common topologies to connect from the host to the controllers are:
■ Direct topology – Connecting directly from the hosts to the controllers.
■ Network topology – Connecting from the hosts to the controllers through a
switch or other network components. Also called a fabric or switched topology.
Alternate topologies such as single-controller configurations and mixed
configurations are described in Appendix D.
FIGURE 4-2 Direct Topology – Two Hosts Connected to Each Controller
1. Hosts
2. NIC 1
3. NIC 2
4. Host Port 1
5. Host Port 2
6. Controller A
7. Controller B
1. Not used
2. Ethernet Host Port
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