Virtual machine placement determination device, virtual machine placement determination method, and virtual machine placement determination program

A virtual machine placement determination method comprising:

• searching for a virtual machine placement proposal satisfying a resource limitation to enumerate;
• generating an availability model for each virtual machine placement proposal, the availability model being described by at least one of a block diagram showing a configuration of an application, a logical expression indicating a combination of failure events of the application, and a probability process indicating a state transition of the application, and being used in a calculation of availability indicating a probability that the application is in an activation state;
• analyzing the availability model to calculate an availability evaluation value indicating the availability of an application system constructed by the virtual machine placement proposal;
• and
• ranking each virtual machine placement proposal based on the availability evaluation value to determine a virtual machine placement proposal applied to the application.

A non-transitory computer readable information recording medium storing a virtual machine placement determination program, when executed by a processor, that performs a method for:

• searching for a virtual machine placement proposal satisfying a resource limitation to enumerate;
• generating an availability model for each virtual machine placement proposal, the availability model being described by at least one of a block diagram showing a configuration of an application, a logical expression indicating a combination of failure events of the application, and a probability process indicating a state transition of the application, and being used in a calculation of availability indicating a probability that the application is in an activation state;
• analyzing the availability model to calculate an availability evaluation value indicating the availability of an application system constructed by the virtual machine placement proposal;
• and
• ranking each virtual machine placement proposal based on the availability evaluation value to determine a virtual machine placement proposal applied to the application.