In this configuration, the cluster system can be operated in one Availability Zone. By applying PRIMECLUSTER to the instance, in the event of an error, an application can be switched from the operational instance to the standby instance in a short time to provide a highly reliable instance environment.
Note
In the cluster system in a single Availability Zone, in the event of an error in the AZ where the cluster is built, all cluster nodes stop and the business stops.
Figure 19.2 Cluster system in a single Availability Zone (Single-AZ)
