Method for realizing data verification test of high-capacity SSD on small-memory machine

Abstract

The invention discloses a method for realizing a data verification test of a large-capacity SSD on a small memory machine, which comprises two parts of random data writing and data verification, during random data writing, the storage mode of an LBA sequence is determined according to a mode parameter in command parameters, when the mode is equal to 1, a low-configuration test machine is encountered, the LBA sequence is not recorded, when the mode is equal to 2, the LBA sequence is stored in a local file, and when the mode is equal to 3, the LBA sequence is stored in a memory through a bitmap; in the data verification process, an LBA sequence is generated, and different verification modes are adopted according to the mode of storing the LBA sequence in the data writing process. The SSD equipment data consistency testing method effectively meets the requirement for SSD equipment data consistency testing with the industry content increasing continuously, the requirement for a testing machine is low, the testing efficiency and quality are improved, and the testing cost is effectively reduced.

Description

technical field [0001] The invention relates to the field of hard disk testing, in particular to a method for implementing a data verification test for a large-capacity SSD on a small-memory machine. Background technique [0002] In the data consistency verification test for SSD storage devices, it is necessary to read and verify the data written to the SSD device to verify the data storage function of the SSD device. In this test scenario, fio, the mainstream test tool currently used in the industry, has flaws when dealing with SSD devices with ever-increasing capacity and performing full-disk data verification on ordinary PC machines with small memory. [0003] In view of the above scenarios, the implementation plan and defects of the mainstream testing tool fio in the industry are as follows: [0004] Through the verify_backlog parameter, fio realizes writing a certain amount of io, and then performs verification, and then writes the next batch of io, so that cyclic writ...

AI Technical Summary

Problems solved by technology

[0005] If fio does not set the verify_backlog parameter, it needs to be fully written first, and then completely read and verified. However, this solution cannot meet the test requirements for test machines with small memory and low configuration.

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