5.2 Evaluation of hot-standby configuration

Installation of HA Monitor enables you to choose from among several hot-standby configurations. This section explains the differences in the hot-standby configurations and the considerations to be evaluated in selecting and designing a configuration.

Evaluation of a hot-standby configuration involves determining the following:

• Hot-standby configuration to be used

• Number of machines

• Number of hosts (when using HA Monitor Extension)

• Whether LPARs are used

• Whether virtual machines are used

Organization of this section

• 5.2.1 Differences in hot-standby configurations

• 5.2.2 Considerations for designing a configuration

• 5.2.3 Considerations for changing the maximum number of hosts (when using HA Monitor Extension)

• 5.2.4 Considerations for using a hot-standby configuration in a virtualization environment (when using Hitachi server virtualization (Virtage))

• 5.2.5 Considerations for using a hot-standby configuration in a virtualization environment (when using VMware ESXi)

• 5.2.6 Considerations for using a hot-standby configuration in a virtualization environment (when using KVM)

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