Method for writing data into storage equipment

Abstract

The invention discloses a method for writing data into storage equipment and belongs to the technical field of storage. The method comprises the step of when data to be written is written to the storage equipment, writing the data to be written into the storage equipment by the processing on a cache area, a fast change area, a first mapping table, a second mapping table and a mark area according to the data to be written, the length of the data to be written and the logic address of the data to be written. The erasing times of the storage equipment are reduced by adopting cache; the data loss during power off is prevented by adopting the mark area; the abrasion balance of the storage equipment in the use process is realized by adopting the fast change area, and the service life of the storage equipment is ensured; the space of the storage equipment is saved by adopting the mode of storing the mapping tables into the cache area.

Description

technical field [0001] The present invention relates to the technical field of storage, and in particular, to a method for writing data to a storage device. Background technique [0002] With the development of science and technology, the market of smart cards continues to expand, and in the process of using smart cards, the smart card cannot work normally due to power failure, power failure or the quality of the electricity does not meet the requirements under unknown circumstances. In the process of erasing and writing the storage device (ie, the non-volatile storage area, including EEPROM, FLASH, etc.), the original data in the storage device will be lost, which greatly reduces the security of the smart card. [0003] In addition, when writing data to the storage device, the data needs to be erased and written. During the actual erasing operation, a certain page in the storage device is frequently erased and written, so that the erasing and writing cannot reach a balance....

AI Technical Summary

Problems solved by technology

[0002] With the development of science and technology, the market for smart cards continues to expand. In the process of using smart cards, the smart card cannot work normally due to power failure, power loss or power quality not meeting the requirements under unknown circumstances. If the smart card is in During the erasing and writing operation of the storage device (that is, the non-volatile storage area, including EEPROM, FLASH, etc.), the original data in the storage device will be lost, which greatly reduces the security of the smart card

[0003] In addition, when writing data to a storage device, data needs to be erased and written. In the actual process of erasing and writing, a certain page in the storage device is often erased and written frequently, so that the erase and write cannot be balanced. , and the erasing and writing life cycle of the storage device is generally 100,000 times. Due to excessive erasing and writing of some pages, the storage device will be damaged early, which seriously affects the service life of the storage device.

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