Selective restoration of data from non-volatile storage to volatile memory

A method of controlling data transfers between a volatile memory and a non-volatile storage, the volatile memory being on a memory device operatively coupled to a computer system, the data transfers comprising: storing data from the volatile memory to the non-volatile storage when a power source of the computer system fails, the method comprising following re-establishment of the previously failed power source, the step of: selectively restoring data from the non-volatile storage to the volatile memory by a controller software after restart operations.