Patent ID: 9575688
Date: 2017-02-21
CPC Classifications: G06F

Claim:
1. In a virtualized computer system including a plurality of host computers, a first storage device accessible by the host computers, and a second storage device accessible by the host computers that has lower input/output latency and higher input/output throughput than the first storage device, a method of managing physical resources of the virtualized computer system including the first storage device and the second storage device, said method comprising: responsive to a request to power on a VM, selecting one of the host computers in which the VM is to be powered on and reserving space in the second storage device in an amount equal to an expected size of a suspended image of the VM; upon suspending the VM and receiving acknowledgement that the suspended image of the VM has been saved in the second storage device, decreasing an available capacity of the second storage device by the size of the suspended image of the VM; and upon resuming the VM, increasing the available capacity of the second storage device by the size of the suspended image of the VM and reserving space in the second storage device in an amount equal to the size of the suspended image of the VM.