| 摘要 |
Disclosed herein are a data update apparatus and method. The apparatus includes an update identification unit, a data storage unit, a block allocation unit, and a data update unit. The update identification unit determines whether the input/output request signal corresponds to an update signal. The data storage unit stores mapping information about the blocks of an arbitrary file in a metadata area. The block allocation unit stores addresses of one or more free blocks, which are selected from among blocks included in the data storage unit and in which data has not been stored. The data update unit acquires the addresses of the free blocks, writes the update data to the free blocks, and updates existing block addresses, which belong to information included in mapping information of the data storage unit and to which the update data has been mapped, with the addresses of the free blocks.
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