JPH04273349A - Information processor - Google Patents

Abstract

PURPOSE:To easily separate the fault caused by a bus adaptor and to improve the maintenance performance of an information processor by building a storage means and a comparison means into an extension adaptor in order to read the values of a memory bus and an input/output bus and to compare them with each other. CONSTITUTION:A memory bus 1 connected to a main storage 4 is connected to an input/output bus 2 connected to an input/output device 7 via an arithmetic processor 5 and a bus adaptor 6. An extension bus 3 connected to an input/ output device 9 is connected to both buses 1 and 2 via the adaptor 8. In such a configuration of an information processor, the adaptor 8 contains a storage means 83 and a comparison means 84 and the device 7 connected to the bus 2 transfers the information to the storage 4 via the adaptor 8. Under such conditions, the means 83 stores the information received by a bus adaptor 6 and the means 84 compares the information stored in the means 83 with the information transmitted from the adaptor 8 to monitor the operation of the adaptor 8.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information processing device that monitors a bus adapter that relays a memory bus and a basic input/output bus. The present invention relates to an information processing device that facilitates information processing.

0002

[Prior Art] Conventionally, this type of device did not have a function in which the expansion bus adapter monitors the operation of the bus adapter when information is transferred between the memory bus and the basic input/output bus. .

0003

[Problems to be Solved by the Invention] In the conventional information processing device described above, when the arithmetic processing unit activates the input/output device, information is exchanged between the main storage device and the input/output device. However, because there was no function to monitor this series of operations, there was a problem in that when a failure occurred, it was difficult to determine the cause.

[0004] The present invention solves the above-mentioned problem, and the operation of transmitting and receiving information between the main storage device on the memory bus and the input/output devices on the basic input/output bus through the bus adapter is performed on the expansion bus. The adapter monitors the bus adapter, and by taking the values of both the memory bus and the basic input/output bus, the purpose is to make it easier to isolate faults caused by the bus adapter and improve maintainability.

[0005]

[Means for Solving the Problems] In order to solve the above-mentioned problems, the information processing device of the present invention incorporates a function of reading and comparing information between an input/output device and a main storage device into an expansion bus adapter. The additional bus adapter can monitor the transmission and reception of information by the input/output device to the main storage device through the bus adapter.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a diagram showing an embodiment of the present invention. 1 is a memory bus, 2 is a basic input/output bus, 3 is an expansion input/output bus, 4 is a main storage device, 5 is an arithmetic processing unit, 6 is a bus adapter, 7 and 9 are input/output devices, 8 is an expansion bus adapter, 81, 82 are selectors, 83 is a storage means, 84
indicates the means of comparison.

Among these, the expansion bus adapter 8 has a built-in storage means 83. The storage means 83 is connected to the memory bus 1
Alternatively, information on the basic input/output bus 2 can be selected by the selector 81 and stored. Conversely, the comparison means 84 can compare the information on the basic input/output bus 2 or the memory bus 1 selected by the selector 82 with the information stored in the storage means 83.

When the arithmetic processing unit 5 activates the input/output device 7 on the basic input/output bus 2, information is transferred between the input/output device 7 and the main storage device 4 through the bus adapter 6. In this case, first, a case in which information flows from the main storage device 4 to the input/output device 7 via the bus adapter 6 will be described. Information leaving the main storage device 4 enters the bus adapter 6 via the memory bus 1. At this time, the information on the memory bus 1 is selected and stored by a selector 81 built in the expansion bus adapter 8. The information is stored in the means 83. On the other hand, the information relayed by the bus adapter 6 is transferred to the basic input/output bus 2.
When entering the input/output device 7 via the input/output device 7, the selector 82 in the expansion bus adapter 8 selects the information of the basic input/output bus 2, and the comparison means 84 selects the information stored in the storage means 83 and the selector 82. Compare the information. As a result, when the compared information is different, the comparing means 84 issues an error signal to a host device (not shown).

Next, a case in which information flows from the input/output device 7 to the main storage device 4 via the bus adapter 6 will be explained. Information exits the input/output device 7 and enters the bus adapter 6 via the basic input/output bus 2;
The selector 81 in the expansion bus adapter selects the information and stores it in the storage means 83. On the other hand, information leaving the bus adapter 6 enters the main storage device 4 via the memory bus 1;
At this time, the information on the memory bus 1 is selected by the selector 82 in the expansion bus adapter 8, and the comparison means 84 compares the information stored in the storage means 83 with the information selected by the selector 82. As a result, when the compared information differs,
Comparison means 84 issues an error signal to a host device (not shown).

[0011] In this way, by reading and comparing the values of both the memory bus 1 and the basic input/output bus 2 during which the expansion bus adapter 8 is transferring data, it is possible to easily determine the failure caused by the bus adapter 6. Furthermore, by monitoring the bus adapter 6, maintainability can be improved.

0012

[Effects of the Invention] As explained above, the present invention enables the expansion bus adapter to read and compare the values of both the memory bus and the basic input/output bus by incorporating the storage means and the comparison means. This has the effect of making it easier to isolate faults caused by the bus adapter and improving maintainability.

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram showing an embodiment of the present invention.

[Explanation of symbols]

1 Memory bus 2 Input/output bus 3. Additional bus 4 Main memory 5 Arithmetic processing unit 6 Bus adapter 7 Input/output device 8. Expansion bus adapter 9 Input/output device 81, 82 Selector 83 Memory means 84 Comparison means

Claims (1)

[Claims] 1. A memory bus, a basic input/output bus, a bus adapter connecting the two buses, and an arithmetic processing unit connecting the memory bus and the basic input/output bus,
It has a main storage device, an input/output device connected to the basic input/output bus, and an expansion bus adapter connected to the memory bus and the basic input/output bus to provide an expansion input/output bus. Further, in the information processing device having an input/output device on the expansion input/output bus, the expansion bus adapter has built-in storage means and comparison means, and the input/output device connected to the basic input/output bus When exchanging information with the main storage device via the bus adapter, the storage means simultaneously stores the information received by the bus adapter, and the information relayed by the bus adapter and the storage means An information processing device characterized in that the comparing means monitors the operation of the bus adapter by comparing information stored in the bus adapter with information stored in the bus adapter.