Cloud authentication hard disk recovery method

Abstract

The invention discloses a cloud authentication hard disk recovery method, being applied to a computer hard disk. The method includes that when an error is found during the data reading from a computer hard disk, an external processor and a computer are in wired or wireless connection, the external processor reads the wrong data in the computer hard disk and the corresponding physical block address, and sends the authentication information to a cloud server, after the authentication of the cloud server succeeds, the external processor further sends a command for restoring the corresponding data and the IP address of the external processor to the cloud server, the cloud server sends the corresponding data to the cache region of the external processor, and the external processor sends the corresponding data to the corresponding physical block address of the computer hard disk for data coverage. The cloud authentication hard disk recovery method realizes faulty hard disk data recovery by cloud technology and the data recovery capability is greatly improved.

Description

technical field [0001] The invention relates to the technical field of hard disk failure. More specifically, the present invention relates to a method for recovering hard disk data in the cloud. Background technique [0002] At present, commonly used hard disks include mechanical hard disks and solid-state hard disks. Because mechanical hard disks are easily affected by temperature and vibration, read and write errors occur, and the inherent erasure and write times limit and bad block rate of solid-state hard disks can also cause read and write errors. Although the hard disk has error correction capability, it can only correct erroneous data with a small number of error bits through its own error correction algorithm, and its error correction capability is limited. [0003] In the prior art, when there are too many error bits in the error data and the hard disk cannot correct the error through its own error correction algorithm, the storage controller usually uses the RAID ...

AI Technical Summary

Problems solved by technology

If errors occur in other hard disks in the hard disk array during the reconstruction operation, the data in the hard disk will not be recovered; and the formatting operation requires data reading of the entire track, formatting and two data writing operations, the first time In order to write the data of the entire track (including the recovery data obtained by the RAID algorithm and other data on the track where the error data is located) to the reserved area, the second time is to write the data of the entire track to the track after the formatting is completed. Frequent, time-consuming, and the reserved area is used to save hard disk parameters and configuration information, which will bring greater risks when performing the first data write operation

In the prior art, in order to improve the repair efficiency of hard disk error sectors or hard disk bad blocks, the method of mapping logical block addresses is used to replace the old logical block addresses to achieve repair, but this method will take up hard disk space, and for large-scale failure of the hard disk. Processing is still time-consuming