Data access method and data access device

Abstract

The invention discloses a data access method and device. The method is applied to electronic equipment, the electronic equipment comprises a storage device, the storage device at least comprises a first storage area and a second storage area, the first storage area has the first access performance, the second storage area has the second access performance, the first access performance is superior to the second access performance, and the first storage area and the second storage area respectively comprise a plurality of storage units. The method comprises the following steps: receiving a data movement command; judging whether the first storage units exist in the first storage area or not, wherein the first storage units are used for storing first data; if the first storage units are judged to be existent, moving the fist data from the first storage units to the second storage units in the second storage area. Therefore, the high-speed data access performance can be realized, and the user experience when the storage device is used is fully improved.

Description

technical field [0001] The present invention relates to the field of computer technology, and more specifically, the present invention relates to a data access method and a data access device. Background technique [0002] In recent years, with the development of computer technology, various electronic devices such as smart phones, multimedia players, personal digital assistants (PDAs), portable computers, tablet computers, and personal computers have been widely used. In such electronic devices, the processing capability of the processing unit is continuously enhanced, and at the same time, the storage capacity and storage speed of the storage device are also correspondingly improved. [0003] As people's demand for data access increases, storage devices using a single storage medium cannot meet the requirements. Instead, hybrid storage devices employing various storage media have been proposed. At present, a hybrid storage device using two storage media is the most commo...

AI Technical Summary

Problems solved by technology

[0007] However, this solution does not make any improvements over the currently popular hybrid storage devices, that is, it does not take into account the unique problems that may arise in hybrid media

Specifically, since snapshot data is often a kind of "cold data" that is not frequently accessed (eg, modified or read), if it occupies an area in the primary storage medium for a long time, it will cause the primary access medium to Unable to take full advantage of higher access speed

Conversely, because the snapshot data occupies the area in the first storage medium for a long time, the "hot data" that is frequently accessed has to be stored in the area in the second storage medium, thus causing the second storage medium to be damaged due to excessive access. Premature wear and tear

This undoubtedly affects the overall performance and lifespan of the hybrid storage device

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