Data Storage Device And Method Of Managing A Cache In A Data Storage Device

摘要

A data storage device includes a data storage medium having a plurality of data blocks. A cache includes a plurality of cache blocks. Each cache block includes a corresponding cache block address. A metadata table includes a plurality of table entries for the data blocks, respectively. Each of the table entries is configured to store the cache block address of one of the cache blocks in which data of a corresponding one of the data blocks is written. A bitmap is configured to store statuses of all of the cache blocks, respectively.