Method and device for improving stability of embedded Linux system

Abstract

The embodiment of the invention discloses a method and a device for improving the stability of an embedded Linux system. Abnormal condition detection is carried out on the embedded Linux system in therunning period by setting a system detection script, if the abnormal condition occurs, formatting processing is performed on the abnormal partition, and data recovery is performed, so that the downtime of the embedded Liunx system can be greatly reduced, the reliability of the system is greatly improved, and the maintenance cost is reduced. According to the scheme of the embodiment of the invention, the maintenance cost can be reduced, and the corresponding hardware cost cannot be increased due to the adoption of software detection implementation.

Description

technical field [0001] The embodiment of the present application relates to the technical field of data storage management of a Linux system, and in particular to a method and a device for improving the stability of an embedded Linux system. Background technique [0002] At present, Linux-based embedded systems are used in many industries, and their storage media generally use flash media such as FLASH. The characteristics of FLASH are different from memory. Memory is a volatile storage medium after power failure, while FLASH is a storage medium that can be saved after power failure. In embedded Linux systems, FLASH is usually used to save user data such as databases and logs. , These data need to be frequently refreshed to read and write FLASH. [0003] In many industries, embedded systems require relatively high stability, especially in the industrial field. Embedded devices run in unattended environments, and the environment is relatively harsh. This requires embedded sy...

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Problems solved by technology

[0004] FLASH has a lifespan. If it is not used properly, bad blocks or damage of FLASH will appear, which will cause the downtime of the embedded Linux system running on FLASH. The reasons are: 1. Sudden power failure; 2. User's Frequent reading and writing of data such as databases and logs

[0005] Based on this problem, the general approach is: 1. Add hardware devices, which can supply power to embedded devices when the power fails suddenly. When the power failure is detected, the software is notified to save the data in time and prepare to shut down, but doing so will cause problems. Increase the cost of embedded devices

2. Minimize the frequency of reading and writing data such as databases and logs, and avoid excessive erasing and reading of FLASH, which will cause the embedded system to go down. However, this will cause the data to not be refreshed in time, which will cause data loss. risk

3. If there is a downtime, it is necessary to manually intervene at the site of the embedded device, replace the embedded device or reprogram the factory firmware of the embedded system to restore normal operation, but this will increase manpower and material resources, maintenance relatively high cost

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