High Availability—Failover Architecture

One of the easiest and simplest ways of architecting a high-availability configuration is to cluster, using the Sun™ Cluster 3.0 software for example (FIGURE 3-5).

Figure 3-5. Simple Failover Configuration

This architecture provides a highly available yet simple configuration. As you would expect, the benefits and drawbacks of this architecture closely mirror those of the simple configuration, with the exception being it is now highly available.

The clustering software not only handles hardware failures but in may cases, software issues as well, trying to restart failed daemons or processes first, then triggering ...

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