US Patent 9038068 Capacity reclamation and resource adjustment

Embodiments of the invention are directed to a system, method, or computer program product for providing capacity reclamation of resources allocated to one or more virtual machines. The invention monitors resource usage of the one or more virtual machines over a predetermined period of time, compares resource usage to resource allocation; and, based on the comparison of the resource usage to the resource allocation, adjusts resource allocation based on the monitored resource usage. Comparing the resource usage may include comparing resource usage to a target upper threshold percentage of allocated resources, and if the resource usage exceeds the target upper threshold, increasing the allocated resources by a predetermined amount and comparing resource usage to a target lower threshold percentage of allocated resources, and if the resource usage is less than the target lower threshold, decreasing the allocated resources by a predetermined amount.