Sun Open Telecommunications Platform 1.1 Installation and Administration Guide

Pair+N

The pair+N topology includes a pair of OTP hosts directly connected to shared storage and an additional set of OTP hosts that use the cluster interconnect to access shared storage. The additional OTP hosts have no direct connection to the shared storage.

The following figure illustrates a pair+N topology where two of the four OTP hosts (Node 3 and Node 4) use the cluster interconnect to access the storage. This configuration can be expanded to include additional OTP hosts that do not have direct access to the shared storage.

Figure 9–2 Pair+N Topology

Diagram: Pair+N clustered OTP system topology

The following procedures are supported in pair+N topology.

For further information about clustered OTP system topology, see Sun Cluster Concepts Guide for Solaris OS.