| 摘要 |
<p>A system for executing an updating or restoring method for stored data groups in a nonvolatile storage device comprises a data storage portion having a first data domain and a second data domain which comprise one pair and are an object to be updated, an information management table for managing a pointer and a current pointer corresponding to each of the data domains, a pointer updating log management table for temporarily storing the current pointer when the data domain is updated, a data updating processor for updating data by temporarily storing the current pointer, updating the first or the second data domain, and transferring the current pointer, when data is updated, and a data restoring processor for restoring information in the data domain before updating by restoring the contents of the current pointer, when data is restored after interruption of the updating operation. Thus, high speed data updating and restoring can be carried out.</p> |
