Sun Cluster Concepts Guide for Solaris OS

SPARC: N*N (Scalable) Topology

An N*N topology enables every shared storage device in the cluster to connect to every Solaris host in the cluster. This topology enables highly available applications to fail over from one host to another without service degradation. When failover occurs, the new host can access the storage device by using a local path instead of the private interconnect.

The following figure illustrates an N*N configuration.

Figure 2–5 SPARC: N*N Topology

Illustration: The preceding context describes the graphic.