3.1.1 Configuring PFM - RM for Virtual Machine in an HA cluster system

When you operate PFM - RM for Virtual Machine in an HA cluster system, you can execute a failover when an error occurs, thereby improving system availability. To operate a PFM environment in an HA cluster system, you normally create an environment in which a PFM instance environment can be executed on both the executing node and a standby node, and use a configuration in which a set of data (e.g., data files, configuration files, and log files) are stored on a shared disk.

To operate a PFM - RM for Virtual Machine environment in an HA cluster system, use the configuration shown in the following figure.

Figure 3‒1: Example of a PFM - RM for Virtual Machine configuration in an HA cluster system

As shown in Figure 3-1, PFM - RM for Virtual Machine runs in a logical host environment, and monitors a virtual environment that is running on a different host. Therefore, each host must be set up to be able to connect to the virtual environment under the same host name.

Definition information and performance information are stored on a shared disk, and are inherited during a failover. If multiple Performance Management programs are installed on a single logical host, they use the same shared folder.

Multiple instances of PFM - RM for Virtual Machine can be executed on a single node. If a configuration is being used that contains multiple cluster configurations (an active-active configuration), execute PFM - RM for Virtual Machine in each logical host environment. Each instance of PFM - RM for Virtual Machine runs independently and can execute a failover separately.

When using PFM - RM for Virtual Machine in a cluster environment, the support for the cluster environment depends on the virtual product being monitored. The following table shows the failover processing for each monitored virtualized product.

Monitoring target	Support for failover
VMware	active-active configuration
logical partitioning feature	active-active configuration
Hyper-V	active-standby configuration
KVM	active-standby configuration
Docker environment	active-standby configuration
Podman environment	active-standby configuration

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