JPH03257539A - Continuous test system for peripheral device - Google Patents

Abstract

PURPOSE:To inhibit the continuation of a meaningless test when a data comparison error is produced due to a fixed fault of a peripheral device by ending the test if the data comparison errors exceed continuously a certain level of frequency after the reading actions are carried out in the continuous tests of the peripheral device. CONSTITUTION:The written data are read out and compared with the expected read data. If a data comparison error occurs, a data comparison error message is outputted and then '1' is added to a data comparison error counter. Then the value of this counter is compared with the prescribed value. If the former value is larger than the latter one, a test under execution is ended. Meanwhile it is decided whether a test was carried out to the entire surface of a working medium or not when the counter value is smaller than the prescribed value. If so, the test is ended. Thus it is possible to decrease the meaningless data with which the data comparison error messages are outputted for each reading action of data. Then the test time of a peripheral device is shortened.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a continuous testing method for peripheral devices used in information processing systems.

[Conventional technology]

Conventionally, in order to test the durability of a peripheral device, a write operation and a read operation to check the normality of the write operation are repeatedly performed on the entire surface of the medium used. The termination condition for the continuous test was that the test was completed on the entire surface of the medium used.

[Problem to be solved by the invention]

In the conventional continuous test method for peripheral devices described above, the termination condition for the peripheral device is that the test is completed on the entire surface of the medium used, so if a data comparison error occurs due to a fixed failure in the peripheral device, However, since a data comparison error message is output every time a read operation is performed, a large amount of meaningless data is output, and it takes a very long time to complete the test.

[Means to solve the problem]

The continuous test method for peripheral devices of the present invention includes means for comparing data read from the peripheral device and expected read data, and detecting a mismatch between the read data and the expected read data as a result of the data comparison. a function for outputting a data comparison error message when a discrepancy occurs; a means for adding 1 to a data comparison error counter when the discrepancy occurs; and a means for terminating the continuous test when the data comparison error counter reaches a certain predetermined value. As a result of performing the reading operation,
The method is characterized in that it includes means for clearing the data comparison error counter to 0 when the read data and the expected read data match.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a flowchart of a peripheral device testing method to which the present invention is applied, and FIG. 2 is a block diagram of the equipment configuration of this embodiment. This device is a central processing unit that controls programs. Memory for storing programs 2. It consists of a system console 3 that controls the interface between the operator and the program, and a device under test 4.

In FIG. 1, first, in step 100, a data comparison error counter is cleared to zero. Then, in step 101, a write operation is performed, and in step 102, a read operation is performed on the data written in step 101, and then a data comparison is performed between the read data and expected read data.

Next, if a data comparison error occurs as determined in step 103, a data comparison error message is output in step 104, and then 1 is added to the data comparison error counter.

Thereafter, in step 105, the data comparison error counter is compared with a specified value, and if the data comparison error counter is larger, the test is terminated, and if it is smaller, it is determined in step 106 whether the entire surface of the medium to be used has been tested. If the test has been performed on the entire surface, the test ends, and if the test has not been performed, the process returns to step 101 for the write operation.

On the other hand, if no data comparison error has occurred in step 103, the data comparison error counter is cleared to O in step 107, and the determination in step 106 is made.

〔Effect of the invention〕

As explained above, the present invention solves the problem of a fixed fault in a peripheral device by adding a process of terminating the test when a data comparison error occurs a specified number of times in succession as a result of performing a read operation in a continuous test of the peripheral device. If a data comparison error occurs due to this, the system is terminated without continuing a meaningless test, which allows the system to be used more effectively.

[Brief explanation of drawings]

FIG. 1 is a flowchart of a peripheral device testing method according to the present invention, and FIG. 2 is a block diagram of the equipment configuration of this embodiment. 1...Central processing unit, 2...Memory, 3...System number! figure

Claims (1)

[Claims] Means for comparing data between data read from a peripheral device and expected read data, and when a mismatch occurs between the read data and the expected read data as a result of the data comparison, The function outputs a data comparison error message, and when the above discrepancy occurs, the data comparison error counter is set to 1.
means for terminating the continuous test when the data comparison error counter reaches a certain predetermined value; and means for terminating the continuous test when the data comparison error counter reaches a certain predetermined value; and means for clearing a counter to zero.