Method and system for supporting a change in state within a cluster of host computers that run virtual machines

A non-transitory computer-readable storage medium comprising instructions that, when executed in a computing device, causes the computing device to carry out the steps of:

• identifying a change in state within a cluster of host computers that run virtual machines;
• determining if predefined criteria for resources to be available within the cluster of host computers can be met by resources available in the cluster of host computers after the change in state;
• and
• determining if predefined criteria for resources to be available within the cluster of host computers can be maintained after at least one different predefined change in state

A computer system comprising:

• at least one host computing device, the host computing device including a processor and memory for running instantiated virtual machines;
• and
• a virtual machine management system configured to manage the virtual machines and virtual switches;
• wherein, the at least one host computing device and the virtual machine management system are configured to:
• identify a change in state within a cluster of host computers that run virtual machines;
• determine if predefined criteria for resources to be available within the cluster of host computers can be met by resources available in the cluster of host computers after the change in state;
• and
• determine if predefined criteria for resources to be available within the cluster of host computers can be maintained after at least one different predefined change in state.