Abstract: A holographic storage system records digital data to a holographic recording medium at recording locations that are strategically left open. A controller determines whether or not a predetermined event has occurred or a predetermined condition is present. If either the event occurs or the condition is present, the opened recording locations are closed. Subsequent data may be holographically recorded in open recorded locations as data appended to previously recorded data. The holographic storage system optionally includes an interim storage device. Controller may comprise a virtual storage controller.