This section describes typical system configuration examples of standby-less system switchover (1:1).
In this configuration, two back-end servers become each other's alternate BESs. Figure 25-22 shows a system configuration example of a mutual alternating configuration.
Figure 25-22 System configuration example of a mutual alternating configuration
* When the cluster software being used is HA monitor, Hitachi HA Toolkit Extension is not required.
This configuration alternates only in a single direction in 1:1 standby-less system switchover. Figure 25-23 shows a system configuration example of a one-way alternating configuration (2-node configuration).
Figure 25-23 System configuration example of a one-way alternating configuration (2-node configuration)
* When the cluster software being used is HA monitor, Hitachi HA Toolkit Extension is not required.
Figure 25-24 shows a system configuration example combining standby-less (1:1) and standby system switchover. For example HiRDB system definitions for this system configuration, see the manual HiRDB Version 8 System Definition.
Figure 25-24 System configuration example combining standby-less (1:1) and standby system switchover
* When the cluster software being used is HA monitor, Hitachi HA Toolkit Extension is not required.