JPS61145665A - Test method of inter-device interchangeability of input output device - Google Patents

Abstract

PURPOSE:To make easy the interchangeability between I/O devices and to shorten the test time by using one medium, making the media for the test and using one media for the test and checking all test data. CONSTITUTION:In case of the interchangeability test, a CPU1, first, selects one of magnetic tape devices 41-4n as all test object devices as an untested executing device as an initial setting of the program. Next, a test execution mode selected by an operator is checked, and when the test execution mode is designated, the media are mounted to a selected untested execution device. Continuously when the writing of test data is designated, after the writing action of test data and a tape mark is executed, the normalcy of a reading action and reading data is checked until two tape marks continuous to all devices are detected. Thus, since one medium is used and the media for the test are made, a troublesome media control and operation is not necessary, and the test of the interchangeability between I/O devices can be executed easily and in a short time.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for testing compatibility between input/output devices constituting an information processing system.

[Prior Art] Conventionally, as a method for testing compatibility between input/output devices, a test medium is created by writing test data using a separate medium for each device to be tested. This test medium was tested by checking the read operation and normality of read data in all the devices to be tested.

[Problems to be Solved by the Invention] Therefore, this method has the problem that media management and operations for reading the test medium in all test target devices become difficult and the execution time is long.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a method by which compatibility between input/output devices can be tested easily and in a short time.

[Means for Solving the Problems] The method of testing the inter-device compatibility of input/output devices of the present invention uses one medium and sequentially changes the test target devices one by one. The process of writing test data into the write area of each medium to create a test medium, and sequentially changing the test target devices one by one using one test medium. The process consists of reading out test data from the test medium and checking the normality of the read data.

[Example] Embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of an information processing system to which an embodiment of the method for testing compatibility between input/output devices of the present invention is applied, in which a central processing unit t controls programs, a memory 2 stores programs. , a console 3 that controls the interface between the operator and the program, and a magnetic tape device 4 that is the device under test. ．． 42. ..., 4n.

! Figure @2 is a diagram showing the format of the test magnetic tape medium created when the compatibility test is executed in this embodiment. ....

The writing operation of 4n test data is performed in order from the starting end marker of the magnetic tape medium, and one tape mark is written after the test data for each device to be tested. However, two tape marks are written after the test data written by the last device under test.

FIG. 3 is a flowchart showing the operation of the test program in the compatibility testing method of this embodiment, and will be described below using this diagram.

In preparation for the test, the operator starts the test program shown in FIG. 3. In FIG. Clear step 100),
All devices to be tested are set as untested devices (step 101), and then the operator selects one of the following execution modes: write test data, read test data, or end test. (Step 102), check whether the selected test execution mode is "Test End" (Step 103), and terminate the program only if Test End is specified as the test execution mode, and if any other test execution mode is specified. If so, select one untested device,
Then, the medium is loaded (step 100) and the test execution mode is checked (step 105), and if writing of test data is specified as the test execution mode, "0" is set in the write operation execution area. Check if the write operation execution area is 0 (step 106).
The test data write positioning operation was executed only when the other than the above was set (step 107), and the test data and tape mark write operation was executed (step 1).
08) After that, set “l” in the write operation execution area (
Step 108), check whether each operation of writing test data or reading test data has been executed for all the devices under test (step 11O), and if it has been executed for all the devices under test. Jump to step 100,
If it has not been executed, the process jumps to step 104 and the above-described process is repeated. On the other hand, if ``read test data'' is specified as the test execution mode in step 105, the read operation and the normality of the read data are checked until two consecutive tape marks are detected (step tU), and then , the process jumps to step 11G, which is the same as when "Write test data °°" is specified as the test execution mode.

By specifying the test execution mode as "writing test data" in step 102 and repeating steps 104 to 110, one medium is used to change the test target device, and the medium soil is changed to another. A test medium can be created by writing test data to a location different from the device, and then, in step 102, the test execution mode is designated as "read test data", and step 104
By repeating step 110 from step 110, it is possible to check the reading operation of the test medium and the normality of the read data while changing the devices to be tested one by one until two consecutive tape marks are detected.

In this embodiment, the device under test was a sequentially accessible magnetic tape device, but the present invention can also be applied to a randomly accessible device such as a magnetic disk device.

Further, in this embodiment, the creation of the test medium and the reading of the test medium are realized by one program, but they may be performed by separate programs.

[Effects of the Invention] As explained above, the present invention uses one medium to create a test medium, which eliminates the need for troublesome media management and operations, and improves inter-device compatibility of input/output devices. tests can be performed easily and in a short time.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an information processing device system to which an embodiment of the method for testing inter-device compatibility of input/output devices of the present invention is applied, and FIG. 2 is a magnetic tape medium for testing created in this embodiment. FIG. 3 is a flowchart showing the operation of the compatibility test program. l...Central processing unit, ? ...Memory, 3...
・Console, 4,. 42. ..., 4n: magnetic tape device. Happy 2nd figure

Claims (1)

[Claims] A process of creating a test medium by using one medium and sequentially changing the test target devices one by one and writing test data into the write area of the medium for each test target device. and a process of reading all the test data from the test medium and checking the normality of the read data while sequentially changing the test target devices one by one using one of the test mediums. A method for testing inter-device compatibility of input/output devices, characterized in that: