Method for storing solid state hard disc and data

Abstract

The embodiment of the invention discloses a solid state hard disc. The hard disc comprises a control module, a ferroelectric memory FRAM buffer module, an interface module and a storage module, wherein, the control module is used for controlling work of the whole solid state hard disc, and transmitting a management information data storage command of the solid state hard disc; the ferroelectric memory FRAM buffer module is used for receiving the management information data storage command, and storing the management information data of the solid state hard disc; the interface module is used for analyzing user data with a specific protocol format transmitted by an external computer to obtain user storage data for storage; and the storage module is used for storing the user storage data acquired by analyzing the interface module. Embodiment of the invention also discloses a method for storing data correspondingly. Through the technical proposal, the reliability of the solid state hard disc is improved, and the reading speed of data is improved.

Description

technical field [0001] The invention relates to the field of data storage, in particular to a solid-state hard disk and a data storage method. Background technique [0002] In SSD (Solid State Disk, solid state disk) hard disk, Flash is mostly used as its storage medium. Since the read and write speed of Flash is much slower than the interface speed, a CACHE (buffer storage module) is generally designed in the disk in order to improve the performance of the hard disk. ), and also save some key data in the CACHE. CACHE is generally composed of high-speed storage media such as SDRAM (Synchronous Dynamic Random Access Memory, Synchronous Dynamic Random Access Memory) or DDRAM (Double Data Rate Random Access Memory, double-rate Synchronous Dynamic Random Access Memory). Since high-speed storage media such as SDRAM and DDRAM are volatile storage media, data on the storage media will be lost after power failure. If the data in CACHE has not been written back to Flash during abno...

AI Technical Summary

Problems solved by technology

In addition, there are still some solid-state hard drives that do not have a power-failure protection circuit. After each update of the hard disk management information, the management information data of the hard disk are directly saved in the reserved area of ​​the hard disk, that is, the management information data is written back regularly.

[0005] However, the above two methods have the following defects: the reliability of the power-down protection circuit based on the farad capacitor is limited, which may cause some key data of management information to be lost in time or correctly, so that it takes a long time to power on the hard disk again. Takes a long time to rebuild information or doesn't work properly

[0006] Write back the management information data to the reserved area of ​​the hard disk regularly. The read and write speed of Flash is slow, and because there is no power-off protection circuit, the hard disk management information in the CACHE will be lost when the power is abnormally turned off.

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