JPH03152638A - Log data collection system for information processor - Google Patents

Abstract

PURPOSE:To inhibit a faulty processor to have an access to a system bus at collection of the log data and to make another processor carry on a due operation by separating the faulty processor from the system bus when any processors have some faults. CONSTITUTION:When a certain processor 2-i has a fault, this processor 2-i informs a bus switch circuit 3-i of occurrence of the fault. The circuit 3-i cut the connection between the processor 2-i and a system bus 5 and informs a log data store circuit 4 of the fault of the processor 2-i via a connection line 6-i. Then the circuit 4 informs a diagnostic processor 1 of the fault via a connection line 7. The circuit 3-i receives the data from the faulty processor 2-i and sends the log data to the circuit 4 via the line 6-i. Then the circuit 4 reports the end of collection of the log data to the processor 1 via the line 7.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a log data collection method for an information processing device, and in particular, when a failure occurs in any of the processors, log data from the failed processor is collected. This invention relates to a log data collection method for an information processing device that collects log data.

[Conventional technology]

In the conventional log data collection method for information processing equipment, when a failure occurs in one of the processors, the failed processor sends log data onto the system bus and stores the log data in memory. After that, the diagnostic processor collects the log data.

[Problem to be solved by the invention]

The log data collection method of the conventional information processing device described above is
In the event of a failure of any of the processors,
The diagnostic processor collects log data after the faulty processor sends log data onto the system bus and stores the log data in memory. The drawback is that it is not known whether the operation of writing log data into memory for access can be performed correctly without affecting the operations of other processors.

[Means to solve the problem]

In the log data collection method for an information processing device according to the present invention, in the log data collection method for an information processing device having a diagnostic processor and a plurality of processors, if a failure occurs in any of the processors, a failure occurs. a bus switching circuit that disconnects a system bus from the failed processor upon receiving a failure occurrence notification from the failed processor; and a log data storage circuit that stores log data from the failed processor. It is configured as follows.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of a log data collection circuit of an information processing apparatus according to the present invention.

The information processing device in FIG. 1 includes one diagnostic processor 1,
N processors 2-1. ...2-1. ...2-N
and bus switching circuit 3-1. ...3-1゜...3
-N, a log data storage circuit 4, and a system bus 5.

If any fault occurs in any of the processors 2-i, the processor 2-i notifies the bus switching circuit 3-i that the fault has occurred.

The bus switching circuit 3-i, which has received the fault notification from the processor 2-i, disconnects the faulty processor 2-1 from the system bus 5, and connects the faulty processor 2-1 to the system bus 5 through the connection line 6-i.
A notification of the occurrence of a failure in the processor 2-i is sent to the log data storage circuit 4. The log data storage circuit 4 that has received the failure occurrence notification of the processor 2-i notifies the diagnostic processor 1 of the failure occurrence through the connection line 7.
The bus switching circuit 3-i that has notified the processor 2-i of the failure takes over the log data from the processor 2-i where the failure has occurred, and sends the log data to the log data storage circuit 4 through the connection line 6-i. The log data storage circuit 4 that has received the log data from the bus switching circuit 3-i stores the log data from the processor 2-i in which the failure has occurred. When the storage of log data from the failed processor 2-i is completed, the log data storage circuit 4 reports the completion of log data collection to the diagnostic processor 1 through the connection line 7, and stores the log data. Finish collecting.

〔Effect of the invention〕

As explained above, in the log data collection method of the information processing device of the present invention, when a fault occurs in any of the processors, the connection between the faulty processor and the system bus is disconnected. When collecting log data of a faulty processor, the faulty processor does not access the system bus, which has the effect that other processors can continue operating with peace of mind.

FIG. 2 is a block diagram showing an example of a method of taking the data.

1... Diagnostic processor, 2-1. ~2-1. ~2-N
...Processor, 3-1. ~3-1. ~3-N...
Bus switching circuit, 4... Log data storage circuit, 5.
...System bus, 6-1. ~6-i, 6-N, 7...
・Connection line.

Claims (1)

[Claims] In a log data collection method for an information processing device having a diagnostic processor and a plurality of processors, when a failure occurs in any of the processors, a failure notification is received from the processor in which the failure has occurred, and the failure is detected. A log data collection method for an information processing device, comprising: a bus switching circuit that disconnects a system bus from the processor in which a failure has occurred; and a log data storage circuit that stores log data from the processor in which a failure has occurred. .