System and method for backing up data stored in multiple mirrors on a mass storage subsystem under control of a backup server

摘要: A backup server controls the backing up of data stored on a mass storage subsystem in response to request from host identifying be backed during operation, storing plurality mirrored copies. The comprises discovery module, preparation an execution module and clean-up module. receives identifies, phase, at least one location which operation is stored. phase following enables sever said copies make it available for operation. In addition, prior enabling copies, will notify host, stop operating connection with subsystem, after copy has been severed, so that can resume other retrieve transfer retrieved facilitate storage. verifies enable re-synchronize also performs restore host.