JPH09179800A - Exchanging system for communication control board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to exchange a communication control board(CCB) without stopping a host computer. SOLUTION: A board monitoring means 16 detects the ejection/insertion of a CCB. When the CCB is ejected, a communication program 15 stops communication processing with a terminal 5 based upon an instruction from the means 16. When another CCB is inserted, a board sort reading means 12 reads out the sort of the inserted CCB based upon an instruction from the means 16. A comparing part 13 compares the read board sort with a board sort previously prepared in a board sort storing part 111. At the time of coincidence between both the sorts, a communication information transfer means 14 stores communication information read out from a communication information storing part 112 in a communication information storing part 42 included in the inserted CCB 4. Finally the communication of the communication program is restarted based upon an instruction from the means 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication control board exchange method in a communication control device for controlling transmission / reception of data to / from a terminal according to an instruction from a host computer, and more particularly to an exchange method in an operating state.

[0002]

2. Description of the Related Art A conventional communication control board replacement method is to check whether the replaced communication control board is of the correct type after the communication control board has been replaced due to a board failure or operational reasons. The system was being restarted in order to do this. For example, in the system introduced in the Japanese Patent Laid-Open Publication "Communication control device" (Japanese Unexamined Patent Publication No. 4-266244), the system configuration information and the line adapter package ID are read after starting the system and before starting data transmission / reception. When the system configuration information and the line adapter ID are compared, data transmission / reception is started, and if they are different, data transmission / reception is not performed. In the system described in detail in Japanese Patent Laid-Open No. 4-168533, the communication control board information mounted in advance in the electronic device is stored in the storage device, and the communication control board is replaced due to the communication control board failure. When
When the system was started up, the communication control board that was previously installed and the communication control board after replacement were automatically compared and a function test was performed. If they did not match, it was displayed on the console that the communication control board was different.

[0003]

The communication control board exchange method in the above-described conventional communication control apparatus requires the system to be restarted after the communication control board is exchanged in order to check the validity of the exchanged communication control board. However, there is a drawback that the serviceability and operability of the system are deteriorated.

[0004]

According to a first aspect of the present invention, there is provided a communication control board exchange method in a communication control device for performing communication control when a host computer communicates with a terminal, wherein the communication control board is removed and inserted. A board monitoring means for detecting is provided, and when the communication control board is removed, the communication processing of the communication program is stopped according to the instruction of the board monitoring means, and when the communication control board is inserted, according to the instruction of the board monitoring means. The type of the inserted communication control board is confirmed, and if the type is correct, communication information including protocol information and the like is stored in the inserted communication control board, and communication of the suspended communication program is restarted. It is characterized by

A second aspect of the invention is to determine whether the inserted communication control board type in the first aspect is correct and a board type stored in advance in the inserted communication control board and prepared in advance. It is characterized in that the determination is made by comparing with the board type corresponding to the mounting position of the communication control board.

A third aspect of the invention is characterized in that the board type in the first and second aspects is a board item name.

Further, a fourth aspect of the present invention is a board monitoring for monitoring the removal and insertion of the communication control board in a communication control board exchange method in a communication control device for controlling communication when a host computer communicates with a terminal. Means, communication control board management means for holding communication information and mounting position information necessary for communication for each board type of the communication control board in advance, and when the communication control board is removed A communication program for stopping communication with a terminal, and a board type reading means for reading a board type from the communication control board inserted by the instruction of the board monitoring means when the communication control board is inserted, and the read board. Before the type and the mounting position of the read communication control board held in the communication control board management means A comparison unit for comparing whether the board types are equal to each other; a communication information transfer unit for transferring the communication information held in the communication control board management unit to the inserted communication control board when the comparisons are equal; and the communication information When the transfer means completes the transfer to the inserted communication control board, the communication program restarts communication with the terminal according to an instruction from the board monitoring means.

[0008]

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

FIG. 1 is a block diagram showing an embodiment of a communication control board exchange system of the present invention.

As shown in FIG. 1, the communication control board exchange method in the communication control apparatus of this embodiment is composed of a host computer 1, an extended storage device 2, communication control boards 3 and 4, and a terminal 5. The host computer 1 includes a communication control board management unit 11 including a board type storage unit 111 and a communication information storage unit 112, a board type reading unit 12,
Comparison unit 13, communication information transfer means 14, communication program 1
5, the board monitoring means 16, and the extended storage device 2 stores system configuration information 21. Further, the communication control board 3 (4) includes a board type storage unit 3
1 (41) and the communication information storage unit 32 (42). Note that the term board used here is synonymous with package.

When the host computer 1 is started up, the extended storage device 2
Then, the system configuration information 21 is read and the communication information and the board type information are stored in the communication information storage unit 112 and the board type storage unit 111 of the communication control board management unit 11, respectively.
This communication information includes communication protocol information necessary for the terminal to perform communication, and the board type information includes the product name of the board to be mounted for each mounting position of the communication control board. Next, the board type reading means 12
Reads board type information from the board type storage unit 31 of the communication control board 3. The board type storage unit 31 stores the board product name as the board type. Comparison section 1
3 compares whether the read product name of the board is equal to the product name of the board stored in the board type storage unit 111 of the communication control board management means 11 corresponding to the mounting position of the board. The information transfer means 14 transfers the communication information in the communication information storage unit 112 to the communication information storage unit 32, and communication with the terminal becomes possible.

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

When the communication control board 3 fails during communication between the communication program 15 and the terminal 5 and the communication control board 3 is removed, the board monitoring means 16 notifies the communication program 15 that the board has been removed. Communication program 15
Communication is stopped by this notification.

Next, when the communication control board 4 is inserted, the board monitoring means 16 recognizes that the communication control board has been inserted, and the board type reading means 12 causes the board in the board type storage section 41 of the communication control board 4 to be recognized. Type information is read. Like the board type storage unit 31, the board type storage unit 41 stores the board product name. The comparison unit 13 compares whether the board product name stored in the board type storage unit 111 corresponding to the mounting position of the read board is equal to the read product name of the board, and if they are equal, communication is performed by the communication information transfer unit 14. The communication information in the information storage unit 112 is transferred to the communication information storage unit 42. After this, the board monitoring means 16 notifies the communication program 15 of board insertion. By this notification, the communication program 15
The communication with the terminal 5 can be restarted.

Further, when the board of the communication control board 4 is inserted, the product name of the board in the board type storage unit 111 in the communication control board management means 11 and the product name of the board in the board type storage unit 41 in the communication control board 4 are inserted. If the values are not equal, it is determined that communication cannot be resumed, and the result is output to an output device such as a console.

In this way, when the communication control board 3 fails and is exchanged for the communication control board 4 while the communication program 15 and the terminal 5 are communicating, the communication control board 3 and the communication control board 3 are not stopped and the host computer 1 is not stopped. 4 can be exchanged.

[0017]

As described above, according to the communication control board exchange method of the present invention, the communication control board can be exchanged without stopping the host computer, and the serviceability and operability of the system are improved. is there.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of a communication control board exchange system of the present invention.

[Explanation of symbols]

 1 Host Computer 2 Extended Storage Device 3 Communication Control Board 4 Communication Control Board 5 Terminal 11 Communication Control Board Management Means 12 Board Type Storage 13 Comparison Part 14 Communication Information Transfer Means 15 Communication Program 16 Board Monitoring Means 21 System Configuration Information 31, 41 , 111 Board type storage 32, 42, 112 Communication information storage

Claims (4)

[Claims] 1. A communication control board exchange method in a communication control device for controlling communication when a host computer communicates with a terminal, comprising board monitoring means for detecting removal and insertion of said communication control board, When the communication control board is removed, the communication processing of the communication program is stopped by the instruction of the board monitoring means, and when the communication control board is inserted, the type of the communication control board inserted by the instruction of the board monitoring means is changed. Confirmation, if the type is correct, communication information including protocol information and the like is stored in the inserted communication control board, and communication of the communication program which has been suspended is restarted. method. 2. Whether or not the inserted communication control board type is correct corresponds to a board type stored in advance in the inserted communication control board and a mounting position of the communication control board prepared in advance. The communication control board replacement method according to claim 1, wherein the determination is made by comparing with a board type. 3. The communication control board exchange method according to claim 1, wherein the board type is a board item name. 4. In a communication control board exchange method in a communication control device for controlling communication when a host computer communicates with a terminal, a board monitoring means for monitoring removal and insertion of the communication control board, and the communication control. Communication control board management means that holds communication information and mounting position information required for communication for each board type of board in advance, and when the communication control board is removed, communication with the terminal is stopped according to the instruction of the board monitoring means. And a communication program, and a board type reading means for reading a board type from the communication control board inserted by the instruction of the board monitoring means when the communication control board is inserted, the read board type and the communication control board Is the board type equivalent to the mounting position of the read communication control board held in the management means equal? And a communication unit for transferring the communication information held in the communication control board management unit to the inserted communication control board when the comparison is the same, and the insertion by the communication information transfer unit. And a communication program for restarting communication with the terminal according to an instruction from the board monitoring means when the transfer to the communication control board is completed.