A preferred data storage system includes a memory storage device that
incorporates a storage medium and electron beam emitters which are
configured to electrically communicate with the storage medium. The
storage medium and the emitters are configured to move relative to each
other so that each emitter may provide a beam of electrons within a
respective coverage area of the storage medium. Each coverage area
includes at least one storage area which is configurable in at least two
structural states, which represent information stored in the storage
areas. A data recovery system also is provided which is communicatively
coupled with the memory storage device. The data recovery system is
configured to determine whether a first emitter of the memory storage
device has failed and to recover information stored in at least one of the
storage areas of the first emitter with a second emitter of the memory
storage device. Computer readable media and methods also are provided.