A kind of abnormal branch testing method and system of solid state hard disk

Abstract

The present invention provides a method and system for testing abnormal branches of solid state hard disks. The method adds a function for setting abnormal parameters and a function for injecting abnormality in firmware, and then writes the firmware into the solid state hard disk. Before testing, access is made through a debugging interface. The function that sets the exception parameter, and the function that sets the exception parameter enables the function corresponding to the injection exception; after starting the test, execute the injection exception operation in the NCM module through the function injection exception, according to the result returned by the FCC for the data operation of the SSD, and To determine whether the conditions for injecting exceptions are met, the firmware enters different branch processes. The test flow after normal read failure is also given. Based on this method, an abnormal branch test system for solid-state hard disks is also proposed. By executing the injection exception operation in the NCM module, according to the returned result, it is easier for the firmware to enter the processing of the exception branch, and the test and development cycle is shortened.

Description

technical field [0001] The invention belongs to the technical field of solid-state hard disk testing, and particularly relates to a method and system for abnormal branch testing of solid-state hard disks. Background technique [0002] During the firmware development process of solid-state drives, it is inevitable to deal with various exceptions. These exceptions come from multiple levels, including but not limited to the interaction between the solid-state drive and the host, the algorithm of the solid-state drive, and the solid-state drive. Levels directly related to read, write and erase. After writing the abnormal branch processing flow, these processes need to be tested and verified. However, the probability that the solid-state drive will be abnormal under the daily fio and other test conditions and cause the firmware to enter the abnormal branch processing flow is extremely low. [0003] At present, the testing method of most exception branches is to make the firmware...

AI Technical Summary

Problems solved by technology

However, in the prior art, by artificially injecting errors, the types of errors are not classified, and the levels directly related to read, write, and erase in solid-state drives cannot be well tested.

Images