Abstract: An example method of reserving a resource of virtualized infrastructure in a data center on behalf of a client includes: obtaining, by a resource lock manager from a topology manager, a sub-topology for the resource from a resource topology of the virtualized infrastructure; setting, by the resource lock manager, an exclusive lock on the resource and on each of at least one descendant in the sub-topology for the resource, each exclusive lock disallowing any other lock on its respective resource; setting, by the resource lock manager, a limited lock on each ancestor in the sub-topology for the resource, each limited lock allowing any other limited lock on its respective resource; and notifying the client that a reservation of the resource is granted.