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A storage data consistency verification method

A technology for storing data and verifying methods, applied in database update, structured data retrieval, etc., can solve problems affecting system development progress, system stability, reliability impact, and difficulty in positioning R&D personnel, to ensure integrity, The process is clear and the effect is verified

Inactive Publication Date: 2019-04-09
BEIJING CERESDATA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the development process of storage technology, data consistency is extremely important. Once data consistency errors and problems occur, it will have a serious impact on system stability and reliability. At the same time, it is difficult to locate R&D personnel, which will also affect the development progress of this system.

Method used

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  • A storage data consistency verification method

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Embodiment Construction

[0015] The technical solutions of the present invention will be further elaborated below in conjunction with the embodiments and the accompanying drawings.

[0016] This embodiment provides a method for verifying the consistency of stored data, and verifies a volume based on RAID striping, which specifically includes the following steps:

[0017] Create striped storage pools and volumes, with or without mapping each client.

[0018] Use the data test tool to write specific test data, such as: AAaa13, after writing into the program of the verification method, execute the executable program, and write parameter 1 when executing.

[0019] Generate a list of LBA addresses, which correspond to the written data one by one; during the writing process, write the written data into each corresponding LBA address in turn, and return the written address; when the data writing stops, output the last A written LBA address, just record the generated address.

[0020] The data here can be n...

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Abstract

The invention discloses a storage data consistency verification method. The verification method comprises the steps of writing data by using a data test tool, generating an LBA address, reading the written data, generating a list for the read LBA address, checking whether the LBA address is consistent with the generation list or not by comparing the generation list, and finding out abnormal data.Compared with a traditional verification method, the method is wide in adaptability, easy to operate and clear in process; During application, there is no need to prepare structured data, and additional requirements for data such as check bits and logic addresses are avoided. According to the method, the stored data is verified, so that the abnormal LBA can be directly found, and great help is provided for problem positioning; According to the method, the integrity of data in an actual LBA address is ensured, and the problem of partial data loss under abnormal conditions is solved.

Description

technical field [0001] The invention relates to storage data maintenance technology, in particular to a method for checking consistency of stored data. Background technique [0002] With the development of data storage today, the requirements for data integrity are becoming increasingly strict, and new requirements are put forward for data testing methods. The traditional data consistency inspection method obviously cannot meet the current requirements for data integrity. The data verification method in practical applications is to verify the actual data through the upper-layer application software or a dedicated data verification tool after the data is written, but often part of the data is not actually sent to the disk during the verification process. Instead, it is read and verified in memory. In the event of abnormal power failure, system crash, device hardware failure, etc., some of the data will be lost, and the next time you read it, there will be an exception. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/23
Inventor 杨刚
Owner BEIJING CERESDATA TECH CO LTD
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