A method of out-of-band acquisition and recording server serial port logs that does not depend on sol

Abstract

The present invention provides a kind of method that does not depend on SOL out-of-band acquisition and record server serial port log, is to start the log record process, establishes BMC UART device file descriptor, is used for directly reading serial port to obtain log information; Establishes and opens for When SOL is opened, store the message queue of log information, place the message queue in the logic of SOL to obtain the system serial port log, and ensure that the system messages read by SOL can be stored in the queue in real time; detect the file descriptor allocated by the state switching process, because SOL is closed by default, so after the BMC is started, the serial port device descriptor is used as the default allocated file descriptor by default; read the allocated description in real time, and record the data to the specified file when there is data; check whether the file size has exceeded the threshold, The threshold can be set according to requirements. When the file size exceeds the threshold, log cycle storage preprocessing is performed to ensure that the file does not exceed the threshold and the latest news will not be lost.

Description

technical field [0001] The invention relates to the field of server monitoring and management, and is used for obtaining and recording log information output from a server to a system serial port outside the band, so as to facilitate fault analysis and positioning in the BIOS startup process or when a fault occurs under the system. Specifically, it is a method for obtaining and recording server serial port log out of band without relying on SOL. Background technique [0002] Server log information (including system startup log, server operation log, etc.) is a powerful tool for system fault analysis and location, and system operation log query, and server administrators pay more and more attention to obtaining server log information through out-of-band. [0003] At present, BMC is generally equipped with SOL (Serial On Lan) function. The remote host opens the SOL function through the IPMI protocol, and redirects the system serial port information to the remote host terminal ...

AI Technical Summary

Problems solved by technology

This method has several disadvantages to obtain serial port information: first, the SOL function needs to be enabled through the IPMI protocol, and the log information cannot be obtained if the SOL function is not enabled; second, it is too dependent on the network, that is, the SOL must be enabled only when the network is smooth Function, log messages cannot be obtained when the network is abnormal

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