Disk bad track scanning method, system and device and computer storage device

Abstract

The invention discloses a disk bad track scanning method which comprises the following steps: firstly, scanning a block of a first layer in a disk, entering a second layer when the block of the firstlayer is a first fault block, scanning a target block with finer granularity corresponding to the first fault block, determining a second fault block in the target block, and otherwise, continuing toscan the block of the first layer. Therefore, according to the scheme, coarse-grained scanning is firstly carried out on the disk, that is, blocks of the first layer are scanned, if the blocks of thefirst layer break down, fine-grained scanning is carried out on the blocks of the first layer, that is, the second layer is skipped into, the target blocks corresponding to the broken blocks of the first layer are determined in the second layer, and the target blocks are scanned to determine the broken blocks in the target blocks. Coarse-grained scanning can save the scanning time of faultless blocks, and fine-grained scanning can increase the accuracy of faulty blocks, so that the full-disk scanning rate is increased, and the accuracy of a scanning result is ensured.

Description

technical field [0001] The invention relates to disk detection technology, more specifically, to a disk bad track scanning method, system, device and computer-readable storage medium. Background technique [0002] Various problems may occur when the disk is used for a long time, and bad sectors of the disk are the most common problems. After the disk has bad sectors, it will increase the risk that the business system cannot run well. Therefore, a mechanism for scanning and detecting disk bad sectors is required in the business system. [0003] At present, in order not to affect the normal use of the business system, the disk bad sectors are usually detected offline. Scan the disk when the business system is shut down or the disk is separated from the business system. Scanning usually scans the disk from the beginning to the end according to a certain scan block size, and the scan block is the granularity of the scan. When the scanning block is small, it is fine-grained sc...

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a disk bad track scanning method, system, device and computer-readable storage medium to solve the problem that the disk scanning result and the full disk scanning speed cannot be guaranteed at the same time in the prior art

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