A l2p table verification method, device, equipment and readable storage medium

Abstract

The application discloses an L2P table verification method, device, equipment and readable storage medium. The method disclosed in the present application includes: if the solid-state hard disk is powered on, then calculate the first checksum of the current L2P table in the solid-state hard disk; read the second checksum from the flash memory in the solid-state hard disk, and the second checksum is The checksum of the L2P table when the solid state disk was powered off last time; if the first checksum is consistent with the second checksum, it is determined that the current L2P table has passed the checksum. This application determines whether the two L2P tables are the same by comparing the checksums of the two L2P tables, which reduces the amount of data processing in the inspection process and improves the verification efficiency of the L2P table; at the same time, this application is applicable to various power-off Scenarios, there is no need to pay attention to the data size of the L2P table itself, which improves the versatility of the L2P table verification scheme. Correspondingly, the L2P table verification device, equipment and readable storage medium provided by the present application also have the above-mentioned technical effects.

Description

technical field [0001] The present application relates to the field of computer technologies, and in particular, to an L2P table verification method, apparatus, device, and readable storage medium. Background technique [0002] At present, the scheme of verifying the L2P (Logical To Physical Table) table is as follows: when the solid-state drive is powered off, the L2P table is exported from the solid-state drive, and when the solid-state drive is powered on, the L2P table is exported again, and the L2P tables exported twice are compared. Whether the tables are the same; if they are the same, it is determined that the L2P table verification is passed; otherwise, it is determined that there is a problem with the L2P table. However, the above solution is only applicable to scenarios where the L2P table content is small and the solid-state drive is normally powered off. When there is a lot of content in the L2P table or the solid-state hard disk is abnormally powered down, it ...

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Problems solved by technology

However, the above solution is only applicable to scenarios where the content of the L2P table is small and the solid-state hard disk is powered off normally.

When there are many contents in the L2P table or the solid-state hard disk is abnormally powered off, the abnormal power-off time of the solid-state hard disk is short, so it is too late to export the L2P table, which brings difficulties to the verification of the L2P table

Moreover, when there are many contents in the L2P table, it takes a long time to compare two L2P tables, so the verification efficiency needs to be improved

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