Patent attributes
A virtual machine is suspended as a result of receiving a request for suspending a plurality of virtual machines, and, for each virtual machine of the plurality, obtaining a first snapshot of an exemplary virtual machine, obtaining a second snapshot of the virtual machine, determining a set of changes based on the second snapshot and the first snapshot, storing the set of changes in persistent storage in association with the virtual machine, and terminating the virtual machine. The system and method further including receiving a request for restoring the plurality of virtual machines to corresponding previous states, and, for each virtual machine of the plurality, obtaining the first snapshot of the exemplary virtual machine, obtaining the second snapshot of the virtual machine, and restoring the virtual machine to a previous state based on the second snapshot.
