Hard disk formatting method, block data storage method based on hard disk and block data storage device based on hard disk

Abstract

The application provides a hard disk formatting method, a block data storage method based on a hard disk and a block data storage device based on a hard disk. According to the hard disk formatting method, a to-be-formatted disk surface is formatted according to the principle that sectors of each to-be-formatted disk surface are same in size, at least one to-be-formatted disk surface has different size with the sectors of residual to-be-formatted disk surfaces, and furthermore the sector size is not subjected to single restriction and can be approximate to or even equal to those of block data, so that block data different in size can be selectively stored in the sectors with sizes most approximate to those of the block data, the problem that multiple disk surfaces of the hard disk store one data block can be avoided, and the risk of whole data block invalidation caused by incapability of reading and writing the data of the disk surface if a magnetic head corresponding to one certain disk surface has a fault when multiple disk surfaces of the hard disk are used for storing data blocks in the prior art can be reduced.

Description

technical field [0001] The present application relates to the technical field of data storage, in particular to a hard disk formatting method and a hard disk-based data block storage method and device. Background technique [0002] A hard disk is an external storage device with magnetic media. Its most basic component is a platter coated with magnetic media. Hard disks with different capacities have different numbers of platters. Each platter has two disk surfaces. Each disk surface , taking the rotation axis as the axis, several concentric circles with a certain magnetic density as the interval are divided into tracks, and each track is divided into several sectors, and the data is stored on the hard disk according to the sectors. One head is used to read and write data. [0003] If a file is stored in the hard disk, the file needs to be divided into multiple data blocks with a fixed data size for storage. At present, in the prior art, all disk surfaces of all disks adopt...

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Problems solved by technology

[0004] However, in this case, for larger data blocks, multiple disk surfaces of the hard disk may be used for storage. Correspondingly, multiple magnetic heads will be used to read and write data. If the magnetic head corresponding to a disk surface fails, the As a result, the data on the disk cannot be read and written, and eventually the entire data block will fail

Moreover, the more disks are used to store a data block, the greater the risk that the data block will eventually fail

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