JPH04155556A - Processing method for setting control pass - Google Patents

Abstract

PURPOSE:To improve a system processing efficiency by connecting a device provided with first and second control parts by a communication path, and starting a setting request for resetting a control pass at a specific time by reset time information by the second control part when disconnecting the control pass by a disconnecting request. CONSTITUTION:A host computer 1 is connected by a front end computer (FEP) 2 performing a communication process and the like and a communication path 3, and when it is needed to temporarily stop the operation of a network at the host computer 1 side, the disconnecting request of the control pass is transmitted from a host control part 4 to an FEP control part 5 through a control pass 6, and the reset time information is applied to the disconnecting request. When receiving the disconnecting request, the FEP control part 5 outputs the disconnecting request of this pass to the communication path 3 and disconnects a logic communication pass. Next, the FEP control part 5 starts the setting request for resetting the control pass at the specific time of the reset time information. Thus, when disconnecting the control pass temporarily, it is possible to reset without delay and at the efficient processing.

Description

[Detailed Description of the Invention] [Summary] Regarding the setting process of a management bus for transmitting and receiving management information between management functions at both ends connected by a communication path in a computer network, this invention has a management bus setting function. The objective is to provide a management path setting processing method that allows the management bus to be reconfigured without delay and with efficient processing when it becomes possible to reinstall the management bus, even if one physical path is temporarily disconnected due to circumstances on the side where the management bus is not available. A device having a first management unit and a device having a second management unit are connected by a communication path, and the eleventh and second management units set a predetermined management path on the communication path and In two systems that exchange management information via a management bus, when the management bus is set up and disconnected by a request issued by the second management unit, and the first management unit requires disconnection of the management bus. The first management section notifies the second management section of a predetermined disconnection request, and the second management section complies with the disconnection request.

The second management unit issues the disconnection request and notifies the disconnection request with predetermined σ resetting time information, and when the second management unit disconnects the management bus based on the disconnection request, The configuration is configured to start issuing the setting request for resetting the management bus at the time specified by the resetting time information.

[Industrial Application Field] The present invention relates to the setting of a management bus for exchanging management information between management functions at both ends connected by a communication path in a computer network, and in particular, to This invention relates to a management bus setting process 2 for resetting a management bus.

[Conventional technology]

5 Figure 3 is a diagram showing an example of the configuration of a computer network, in which the host computer 1 is a front-end computer (hereinafter referred to as FEP) that performs communication processing, etc.
c) 2 and is connected by communication path 3. The communication channel 3 is constituted by a necessary communication line and a communication control function at both ends, and enables information exchange between each program executed by the host computer 1 and the FEP 2.

Here, the host computer 1 is equipped with a host management section 4, an FEP 2, etc., in order to process various management functions of Dagin, such as enabling communication between various necessary programs executed on the two-hand calculation machine when necessary. An FEP management unit 5 is provided in the FEP management unit 5, and a management bus is set on the communication path 3 to logically connect the two management units to enable communication, thereby making it possible to exchange management information.

To set up such a management bus, while the management units at both ends are in operation, one management unit issues a setting request to the communication path 3, the request is passed to the other management unit, and the other management unit issues a setting request. This is done through a procedure to obtain the necessary response, and disconnection of the management bus is also performed by issuing a request from the management unit on the side that performs the settings.

Therefore, for example, if the FEP 2 side is responsible for the settings, when the FEP management unit 5 starts up, it first issues a management bus configuration request, and if the host management unit 4 is operating normally, the management bus 6 is Once the settings are complete, the network between the two calculators will begin operating.

In such a situation, if it becomes necessary to temporarily suspend network operation on the host computer side due to power cutoff for maintenance or some other reason, the host management unit 4 sends a message to the FEP management unit 5. through the management bus 6.
When a management bus disconnection request is sent and the FEP management unit 5 receives the disconnection request, the logical communication bus is disconnected by issuing a bus disconnection request to the communication path 3.

In this way, when the management bus is not set, the FEP management unit 5 does not know when it will be able to restart, so it is necessary to restart the management bus in the same way as when the management bus is lost at system startup or due to a failure. The host computer 1 returns to normal operation by repeatedly issuing management bus setting requests and repeatedly attempting to set the bus until the setting is successful, and the management bus 6 is restarted by receiving a normal response from the host management section 4. Once set, it enters its original operational state.

[Problem to be solved by the invention]

As mentioned above, if the managed path setting side is disconnected due to the other party's circumstances, the setting side must constantly repeat setting attempts in order to resume network operation, which unnecessarily increases the load on the setting side. and inhibit the progress of other processes.

This invention does not have the management path setting function.
To provide a management path setting processing method capable of resetting the management path without delay and with efficient processing when the management path becomes reconfigurable when the management path is temporarily disconnected.

[Means to solve the problem]

FIG. 1 is a process flowchart showing the configuration of the present invention.

The figure shows the configuration of a management bus setting processing method, in which a device having a first management section and a device having a second management section are connected by a communication path, and the first and second management sections In a system in which a predetermined management path is set in a communication path and management information is exchanged using the management path, the management path is a second management path.
Setting and disconnection are performed according to requests issued by the management department of
If the first management unit needs to disconnect the management path,
In step 11), the first management unit notifies the second management unit of a predetermined disconnection request, and the second management unit issues the disconnection request in accordance with the disconnection request. When the management path is disconnected by the disconnection request, the second management unit reconfigures the management path at the time specified by the reset time information 10. The issuance of the setting request for this purpose is started (processing steps 12 to 15).

Further, the second management unit repeatedly issues a setting request for resetting the management path at a predetermined time interval from the predetermined time after the disconnection until the management path is reset,
As the time approaches the specified time based on the reset time information,
The time interval may be sequentially shortened in a predetermined manner from a predetermined time (processing steps 16 to 18). In that case, the reset time information 10 may include a designation as to whether or not a predetermined reset attempt is necessary.

[For production]

According to the processing method of the present invention, when a managed path is disconnected at the request of the other party, the setting side starts issuing a setting request at a specified time, or starts a resetting attempt before the specified time according to the specification. However, since the interval is started with a suitably long interval and gradually shortened as the specified time approaches, the repetition of useless resetting attempts is reduced, reducing the processing load, and if necessary, the interval is gradually shortened as the specified time approaches. Even if it becomes possible to resume operations sooner, the settings can be reset without delay.

〔Example〕

In the system illustrated in FIG. 3, if it becomes necessary to temporarily suspend network operation on the host computer 1 side for some reason, the host computer 1 sends an F
A management path disconnection request is sent to the EP management unit 5 through the management path 6, and according to the present invention, reset time information is attached to the disconnection request.

The reset time information specifies at least the scheduled time at which resetting is possible or the time until the scheduled time, so that the designated time can be determined. Also, depending on the system, you can specify whether or not a trial is required, if necessary.

Upon receiving the disconnection request, the FEP management unit 5 issues a bus disconnection request to the communication path 3 to disconnect the logical communication bus.

Next, the FEP management unit 5 prepares for resetting the management path. In other words, in the case of a system in which a timer is set so that an interrupt occurs at the time specified by the reset time information, and a trial is sometimes started before the specified time, the system unconditionally starts the trial from before the specified time. , and in a system where trial necessity is specified, when the trial necessity is specified, a time is set in another interval timer so that an interrupt is generated after a predetermined period of time has elapsed.

In this way, when an interrupt at a specified time occurs, a setting request is issued in processing step 15, and if the setting is unsuccessful at this time, the setting request is issued at predetermined relatively short intervals until the setting is successful. is issued repeatedly.

Also, if an interrupt occurs in the interval timer, the processing step 13.1
4, a setting request is issued in processing step 16, and if the setting is successful, the processing related to resetting ends, but if it is unsuccessful, the process proceeds from processing step 17 to processing step 1, reducing the time for setting. Process, start the interval timer, and wait for an interrupt.

For example, first set the time to the interval timer to be a relatively long time proportional to the time until the specified time of resetting,
The length should be shortened by a certain percentage for each interrupt.

Fig. 2 is a diagram explaining the status of setting request issuance using the above processing method. When no trials are performed, (b) shows the case where trials are performed at progressively shorter intervals, and it is clear that the load on the setting process is significantly reduced compared to the conventional situation shown in (c) for reference. be.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, in a management bus for exchanging management information between management functions at both ends of a computer network connected by a communication path, the side that does not have the management bus setting function When the management bus is temporarily disconnected due to circumstances, the management bus is reconfigured without delay and with efficient processing when it becomes possible to reconfigure the management bus, which has a significant industrial effect of improving system processing efficiency. .

[Brief explanation of the drawing]

FIG. 1 is a process flowchart showing the configuration of the present invention, FIG. 2 is an explanatory diagram of the management path setting request issuance status, and FIG. 3 is a diagram showing an example of the configuration of a computer network. In the figure, 1 is the host computer, 2 is the FEP, 3 is the communication path, 4 is the host management unit, and 5 is the FE
6 is a management bus, and 11 to 18 are processing steps. Fig. 1 is a process flow diagram showing the configuration of the present invention. Fig. 2 is an explanatory diagram of the management bus setting request issuance status.

Claims (1)

[Claims] 1. A device having a first management section and a device having a second management section are connected by a communication path, and the first and second management sections have a predetermined connection to the communication path. In a system in which a management path is set and management information is exchanged using the management path, the management path is set up and disconnected by a request issued by a second management unit, and the first management unit sends and receives management information using the management path. If it is necessary to disconnect the path,
The first management unit notifies the second management unit of a predetermined disconnection request, the second management unit issues the disconnection request in accordance with the disconnection request (11), and the disconnection request includes a predetermined reset request. When the second management unit disconnects the managed path based on the disconnection request, the second management unit disconnects the managed path at the time specified by the resetting time information (10). A management path setting processing method characterized in that the management path setting processing method is configured to start issuing the setting request for resetting (12 to 15). 2. The second management unit receives the setting request for resetting the management path until the management path is reset.
It is issued repeatedly at predetermined time intervals from the predetermined time after the disconnection, and as the time approaches the time specified by the reset time information (10), the time interval is sequentially shortened from the predetermined time in a predetermined manner ( 16 to 18), the management path setting processing method according to claim 1. 3. The reconfiguration time information (10) includes a designation as to whether or not a predetermined reconfiguration attempt is necessary, and the second management unit transmits the configuration request for reconfiguring the management path to the reconfiguration attempt. If there is no designation requiring the resetting attempt, the system is issued as described in claim 1, and if there is a designation that requires the resetting attempt, the system is issued as described in claim 2. The management path setting processing method according to claim 2.