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PRIMECLUSTER  Installation and Administration Guide 4.3

2.2.1 Virtual Machine Function

The virtual machine function is a function for the realization of virtual machine environment on the PRIMEQUEST. This function enables you to create multiple independent virtual machines on one physical machine by virtualizing resources such as the CPU, memory, network and disk that are installed on a physical machine.

The function is made up of one host OS and multiple guest OSes.
PRIMECLUSTER makes it possible to build a cluster system between guest OSes on one or two host OSes.

Note

When the virtual machine function is used with PRIMEQUEST 500/400 series, building a cluster system between guest OSes on multiple host OSes is not supported.

See

For details on the virtual machine function in a Xen environment, see "PRIMEQUEST Virtual Machine Function User's Manual."
For details on the virtual machine function in a VMware environment, see the documentation for VMware.

Virtual machine function configuration

Cluster system in the virtual machine function
When building a cluster system between guest OSes on one host OS

This configuration allows you to run a cluster system on a physical machine. This is effective when you verify that the userApplication runs on PRIMECLUSTER.

When building a cluster system between guest OSes on two host OSes

This configuration allows you to continue work processes by a failover even if hardware such as a network or a disk fails.

Note

If the host OS cannot run, the node enters the LEFTCLUSTER state and manual switching by an operator may be required. For details, see "7.4.2 Corrective Action in the event of the LEFTCLUSTER state when the virtual machine function is used" or "7.2 Operating the PRIMECLUSTER System."

Note

Assign more than two virtual CPUs to each guest OS which comprises the cluster system.

See

For information on how to assign virtual CPUs to guest OSes in a Xen environment, see "PRIMEQUEST Virtual Machine Function User's Manual."
When using the virtual machine function in a VMware environment, see "Appendix H Using PRIMECLUSTER in a VMware Environment."