Metadata processing method and device

A processing method and metadata technology, which are applied in the fields of electrical digital data processing, input/output process of data processing, instruments, etc., can solve the problem of reducing the performance of the all-flash storage system, increasing the power consumption of the all-flash storage system, and affecting the efficiency of processing data. And other issues
CN110532201AActive Publication Date: 2019-12-03北京浪潮数据技术有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
北京浪潮数据技术有限公司
Publication Date
2019-12-03

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Abstract

The invention provides a metadata processing method and device, and the method comprises the steps: querying a physical address corresponding to a logic address of to-be-read data in pre-constructed LP metadata when a full-flash storage system carries out the data reading, and reading the to-be-read data based on the physical address; and when the full-flash storage system performs data correction, querying a logic address corresponding to the physical address of the to-be-corrected data in the pre-constructed PL metadata, and correcting the logic address. Wherein the pre-constructed LP metadata is used for indicating a mapping relationship from a logical address of the data to a physical address of the data, the LP metadata and the PL metadata are both of a B + tree data structure, and the pre-constructed PL metadata is used for indicating the mapping relationship from the physical address of the data to the logical address of the data. Based on the LP metadata and the PL metadata, the physical address and the logic address of the corresponding data can be quickly and effectively found, so that the data processing efficiency and performance of the all-flash storage system are remarkably improved.
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Description

Technical field

[0001] This application relates to the field of all-flash storage technology, and in particular to a metadata processing method and device. Background technique

[0002] With the rapid advancement of solid state drive technology, the cost of solid state drives is gradually reduced, and all-flash storage systems based on solid state drives as storage media are becoming more and more popular among users. In the process of storing data in an all-flash storage system or based on the processing of stored data, based on the storage characteristics of the additional write of the solid state drive, in the process of processing data, it is necessary to perform corresponding operations on continuous large blocks of data. When only random small blocks of data need to be processed, the existing methods will affect the efficiency of processing data, increase the power consumption of the all-flash storage system, and reduce the performance of the all-flash storage system. [000...

Claims

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