1. A computer implemented method performed by a disaster recovery validation computer in communication with a backup appliance adapted to back up a computer, the method comprising: transmitting a restore command to the backup appliance wherein the restore command includes information that identifies a backup for the computer and a virtual machine and causes the backup appliance to restore the backup to the virtual machine where the backup is maintained by the backup appliance; receiving information from the backup appliance used to measure a time required to boot and bring up the backup on a virtual machine; comparing the measured time to boot and bring up the backup on the virtual machine to a predetermined recovery time objective to determine if the measured time meets the recovery time objective; and transmitting results of the comparison to the backup appliance to be stored as an attribute of the backup wherein the results include information identifying the backup.