1. A method comprising: executing, by a processor of a backup cloud management system computing device, one or more virtual machines for limited durations for users of backup cloud systems managed by the backup cloud management system computing device, wherein resources of the backup cloud systems are managed separately from other resources of an operating cloud, the resources comprising at least processing power of processors of computing devices and memory of storage devices of the computing devices used to execute the one or more virtual machines under direction of the backup cloud management system computing device; managing, by the processor of the backup cloud management system computing device, the resources of the backup cloud systems to provide backup support for the operating cloud; receiving, by the processor of the backup cloud management system computing device, an augmentation request from an operating cloud management system computing device of the operating cloud, wherein the augmentation request comprises an indication of resources to upgrade service above a service level reflected in a set of service level agreements (SLAs) for users of the operating cloud, and wherein the operating cloud does not comprise the resources to upgrade the service above the service level reflected in the set of SLAs; identifying, by the processor of the backup cloud management system computing device, supplemental resources of the resources of the backup cloud systems to upgrade the service above the service level reflected in the set of SLAs as indicated in the augmentation request, wherein the identifying comprises selecting at least one of the supplemental resources in view of a match between a time period to complete the upgrade as specified by the augmentation request and a set of determined time periods for which each of the supplemental resources is offered to be available; activating, by the processor of the backup cloud management system computing device, the identified supplemental resources of the backup cloud systems in view of the augmentation request, wherein each of the backup cloud systems activate successive levels of the resources in the operating cloud to upgrade the service above the service level reflected in the set of SLAs; communicating, by the processor of the backup cloud management system computing device to the operating cloud management system computing device, with each of the backup cloud systems to determine an availability of the activated supplemental resources; responsive to receiving confirmation of which operating clouds indicate the availability of the activated supplemental resources, identifying information of the activated supplemental resources that allows the operating cloud to access and utilize the activated supplemental resources, wherein the identifying comprises updating resource configurations of one or more instantiated virtual machines in view of configuration parameters defined in the augmentation request, wherein the one or more instantiated virtual machines are associated with at least one operating cloud that confirmed availability of the activated supplemental resources; causing, by the processor of the backup cloud management system computing device, the operating cloud management system computing device to instruct the operating cloud to augment resources provided by the instantiated virtual machines of the at least one operating cloud to upgrade the service above the service level reflected in the set of SLAs; monitoring a virtual machine executing in the operating cloud to determine when the operating cloud can upgrade the service above the service level reflected in the set of SLAs without the supplemental resources of the backup cloud systems; and in response to a determination that the operating cloud can upgrade the service above the service level reflected in the set of SLAs without the supplemental resources of the backup cloud systems, discontinuing an activation of the supplemental resources of the backup cloud systems.