JPS63180872A - Test system of electronic equipment - Google Patents

Abstract

PURPOSE:To enable efficient test during the replacing work of a maintenance exchange module as well as diagnosis automatically during the parallel maintenance thereof, by providing an insertion/withdrawal detection signal within the maintenance exchange module. CONSTITUTION:A diagnosis control section 4 within a diagnosis processor B is started using an insertion/withdrawal signal 3 having a change part hotly replaceable to select a module stored in the diagnosis control section 4. Here, a test module 6 preset is selected in a table corresponding to a maintenance exchange section 2 and is automatically sent to the maintenance exchange section 2 within an information processor A through a diagnosis bus 7. The exchange section 2 executes a test with a test module 6 and the results are sent to the processor B through a sequential signal line 3, which has a signal added to identify the maintenance exchange section 2. Upon the end of said test, the processor B reports the results of the test to an operating system or the like to indicate that a faulty part at the exchange section 2 is restored to the normal condition, thereby enabling the operating of a device A in normal condition.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to electronic equipment having a redundant configuration and degeneracy function in highly reliable computers, and particularly to efficient testing during replacement work of maintenance replacement modules, and The present invention relates to a test method for electronic equipment suitable for automatically performing diagnosis during parallel maintenance.

[Conventional technology]

In conventional devices, when a target device is designated, the entire component unit within the device is tested, regardless of whether the test is online or offline. However, in systems that require a fault-tolerant configuration, it is necessary to perform test nucleation of the defective part in a short time, efficiently, and while online. Until now, no method has been thought of that would allow this to be done at any time.

In addition, as this type of conventional technology, for example, Japanese Patent Publication No. 55-
There is one described in Japanese Patent No. 43531.

[Problem that the invention seeks to solve]

The above-mentioned conventional technology does not take into account testing or diagnosis of only the replacement part or module when it comes to maintenance and replacement work for highly reliable electronic equipment or online equipment, and it is automatic.

Units and modules that are not subject to replacement are also tested, whether manually, online or offline, and efficiency cannot be expected to improve due to system complexity, high functionality, or extended diagnostic time. There was a problem in that the accuracy decreased due to the shortening of the test time.

The purpose of the present invention is to solve the above-mentioned problem and to enable the maintenance/replacement part to be replaced while the power is turned on while online.IJ place (hot insertion) detection signal and a circuit for transmitting and receiving it. and that signal as a trigger for diagnosis,
The object of the present invention is to provide a test method for electronic equipment that can test whether the replacement part is normal or abnormal by starting the test module or the test program and performing the test during online maintenance.

[Means for solving problems]

The above purpose is to connect multiple printed wiring boards, modules, and connectors in the module A of the power supply unit, which are the replacement unit for maintenance work in each electronic device that makes up a computer or online system. and a connector part that can be hot-plugged, and an insertion/removal detection signal is provided in the maintenance/replacement module, and the signal is sent to a diagnostic module located outside or inside the replacement module. This is achieved by testing the tested module only at the maintenance/replacement part while it is online.

[Effect]

Diagnosis is controlled by a hot-replacement detection circuit in each maintenance/replacement part.The test program module corresponding to each replacement part in the diagnostic processor is called and the signal can be sent and received via the interface bus. . As a result, even if any part of the information processing device fails, a replacement part or Test 9 diagnostic work when repairing a system operating in a degraded state can be automatically performed, so that the entire system can be No impact on maintenance, repair, or testing.

〔Example〕

Hereinafter, one embodiment of the present invention will be explained in detail using the M plane.

, 3.

FIG. 1 is a diagram for explaining a test method for electronic components, which is an embodiment of the present invention. In FIG. 1, A is an information processing device operating online and has built-in maintenance/replacement parts 1 and 2 that can be hot-replaced during maintenance, and these are the central processing unit.

It may be composed of a main memory section, a channel control section, etc., or it may be a multiprocessor type in which all of the above sections are included in 1 or 2.
However, it may be a power supply module that can be replaced while online. B is a diagnostic processor for the test method according to the present invention, which is usually called a service processor and has functions such as an operator console during operation, diagnosis during maintenance, and testing. A failure was detected in two of the maintenance/replacement parts during operation, and it is necessary to perform testing and diagnosis in order to repair the maintenance/replacement part 2 while the maintenance/replacement part 2°, which is a replacement module, is in operation.

In this embodiment, the insertion/removal detection signal 3 having a hot-replaceable replacement part is sent to the diagnostic control unit 4 in B. In other words, the module that starts the module that controls the diagnostic program and is stored in the diagnostic control unit 4 Select. Here, the test module 6 preset in the table corresponding to the maintenance exchange section 2 is selected,
Automatically, the test module 6 via the diagnostic bus 7
It is sent to the maintenance exchange department 2 in A. The maintenance exchange section 2 in A executes the test on the test module 6, and then sends the results to B through the signal line 3. Further, the signal line 3 has a signal added thereto for identifying the maintenance/replacement section 2. When the above tests are completed, B can report the test results to the operating system, etc., and notify that the faulty part of the maintenance/replacement unit 2 has returned to normal, and A can again operate under normal performance conditions. becomes.

In this embodiment, A and B are explained separately for easy understanding, but B may be located within A, and the test module 6 within B may be built into each replacement part. . Next, with reference to FIG. 2, details of the maintenance/replacement section 2 shown in FIG. 1 will be explained. 8 is a PKb insertion detection circuit, and its output signal is reported to B in FIG. It is sent via the test signal pin 14.

The test start signal and its test pattern selected in B are synchronized and input to the test circuit 10, so that the logic circuit group 9 of the circuit under test can be tested. The normal/abnormal signal after the test is detected by B in conjunction with the board insertion detection circuit 8.
can be reported to.

According to this embodiment, in a fault-tolerant system, when performing maintenance/replacement work with the power turned on, all target modules in A are tested for rearranging replacement parts and restoring normality. (It can be executed in an extremely short time, omitting various operations, and it is possible to significantly reduce the number of man-hours required for online testing. Also, maintenance work using this method requires advanced technology. Can be performed without any skill.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, in a fault-tolerant system, when maintenance and replacement work is performed with the power turned on, the parts to be replaced are rearranged and the test for returning to normality is performed. There is no need to test all target modules, and the test can be completed in a very short time.
This has the effect that it can be executed without performing various operations, and that it facilitates online testing.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a test method for electronic equipment according to an embodiment of the present invention, and FIG. 2 is a diagram for explaining details of the maintenance/replacement section 2. As shown in FIG. A... Information processing device, B... Diagnostic processor,
1...Maintenance/replacement part, 2...Maintenance/replacement part (indicates failure), 2...2
Alternative part of 3... Nucleus insertion detection signal, 4... Diagnosis control unit, 5... Test module, 6...
2. Corresponding test module, 7. Diagnosis bus.

Claims (1)

[Claims] 1. In each electronic device that makes up a computer or online system, hot-swapping is performed with each connector in the multiple printed wiring boards, modules, and power supply modules that are the replacement units for maintenance work within the device. A connector part that is capable of configuring an insertion/removal detection signal is provided in the maintenance/replacement module, and the signal is sent to a diagnostic module located outside or inside the replacement module, and the test module receives the signal. , a testing method for electronic equipment characterized by testing only the relevant maintenance/replacement parts while online.