JPS61117951A - Restoration system of faulty line - Google Patents

Abstract

PURPOSE:To restart automatically a faulty line without intervention of the operator by outputting a restart command signal of a line given to an inforation processor recognized as a faulty line to a channel device based on line information. CONSTITUTION:When a timer device 13 gives a restart command signal (d) for a line to a restart processing section 14 at each time according to a time supervisory command signal given from a high-order program 11, the restart processing section 14 scans line state information possessed by a line state management section 12. In giving a data transmission/reception command to the channel device 20 by arestart command signal (e) to a faulty line, the command is decoded by a communication controller 30 and restart is requested to all lines of an information processing unit 40. When the request is seccessful, the restart processing section 14 informs the restoration line information to a high-order program 11 by using a signal (f) and to the line state management section 12 by a signal (g). When the restoration of all faulty lines is finished, the processing section 14 gives a timer stop command signal (h). When the request is not successful, the restart operation of the said faulty lines is repeated.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for restoring a faulty line of an information processing apparatus that is mutually connected to a plurality of information processing apparatuses via communication lines. In particular, failure rgJf! allows recovery of failed lines without the intervention of the operator operating the information processing equipment! Regarding the recovery method.

[Conventional technology]

Conventionally, an information processing device that is interconnected to multiple information processing devices via a communication line, and due to a failure of the other information processing device or a temporary failure of the communication line itself, this information processing device may be treated as a line failure. The re-opening of the line, which had been separated from the responsible management, was carried out by the operator operating this information processing equipment. In order to restore the faulty line, the operator must check the recovery status of the information processing equipment that caused the fault, and also perform connection operations from the system console in order to reconnect to this information processing equipment. Ta.

[Problem that the invention seeks to solve]

However, in small-scale communication networks, this conventional method of manually restoring faulty lines requires less burden on the operator, but as the scale of communication networks has grown larger in recent years, the number of lines that each information processing device has As the number increases, line failures tend to occur more frequently, increasing the burden on operators. Furthermore, because the recovery process is performed manually, there is a delay in connecting the failed light to the information processing device, which has the disadvantage of reducing the efficient operation of the communication network.

The present invention solves the above-mentioned drawbacks, and aims to provide a recovery method for a faulty line that is capable of re-establishing a faulty line that has been disconnected from resource management of an information processing device without human intervention. purpose.

[Means for Solving the Problems] The present invention provides a host information processing device including a data processing device, a channel device, and a communication control device, and a plurality of host information processing devices connected to the host information processing device via a communication line. an information processing device, and includes a line state management means for managing the line state of the plurality of information processing devices connected to the data processing device via the communication line. In the processing method, a timer means outputs a restart activation signal for the failed line at a predetermined timing, and information processing that recognizes the failed line as a failed line based on the line status information from the line status management means using the restart activation signal. The channel device is characterized by comprising a re-establishment processing means for outputting a re-establishment instruction signal to the channel device to instruct the device to re-establish a line.

[For production]

The present invention provides an information processing apparatus in which a re-establishment processing means is activated by a re-establishment activation signal for a failed line outputted at a predetermined timing from a timer means, and the line is recognized as a failed line based on line information from a line status management means. By outputting a re-establishment instruction signal to the channel device, it is possible to automatically re-establish the failed line without human intervention.

〔Example〕

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

In FIG. 0, which is a block diagram of a failed line recovery device according to an embodiment of the present invention, a transmission/reception instruction signal a is connected from a host program 11 to a channel device 20, and a transmission/reception instruction is given. A transmission/reception command is given from the channel device 20 to the information processing device 40 via the communication control device 30 and the communication line, and data is transmitted and received. If a line failure occurs here, a line status update instruction signal is sent from the host program 11 to the line status management section 12 to update the contents of the line status information. Further, the upper level program 11 displays the faulty line on the system console of the data processing device IO (not shown) and notifies the operator.

Here, the feature of the present invention is the re-opening processing portion surrounded by a dashed line. That is, the time monitoring instruction signal C is connected to the timer device 13 from the host program 11 .

A re-opening instruction signal d is connected from the timer device 13 to the re-opening processing unit 14 at every time according to the time monitoring instruction signal C.

The re-establishment processing unit 14 scans the line status information held by the line status management unit 12, and the re-establishment instruction signal e for the line defined as the failed line is connected to the channel device 20, and the re-establishment data is sent to the channel device 20. A transmission/reception command is given. The data transmission/reception command from the channel device 20 is sent to the communication control device 3.
0 and is sent to the information processing device 40 via the communication line, requesting that the line be re-established. As described above, a line re-opening request is made to all lines defined as failed. If this request is successful, the re-establishment success instruction signal f is connected from the re-establishment processing unit 14 to the upper level program 11, and the line restoration instruction signal g is connected to the line status management unit 12, so that restoration information is notified. Based on this recovery information, the host program 11 displays the recovery line on the system console and notifies the operator. Also, line status management section 1
Step 2 updates the held line information. When all failed lines are restored, a timer stop instruction signal is connected from the re-opening processing unit 14 to the timer device 13, and the timer device 13 prevents the re-opening operation from being started.

The operation of the failed line recovery device having such a configuration will be explained. Outside the figure, in the normal data processing device 10,
When the higher-level program 11 is running and transmits and receives data, the higher-level program 11 gives a transmit/receive command to the channel device 20 using a transmit/receive command signal a. The given transmission/reception command is interpreted by the channel device 20 and the communication control device 30, and data is transmitted and received with the information processing device 40 connected via the communication line. In addition, the upper program 11 constantly monitors the line status and stores the line status information in the line status management unit 12.0 If a failure occurs in the line, the upper program 11
gives a line status update instruction to the line status management unit 12,
Update the contents of line status information.

Furthermore, the higher level program 11 displays the faulty line on the system console that the data processing device 10 normally has and notifies the operator. Conventionally, at this time, the operator checked the recovery status of the information processing device 40 affected by the faulty light, and performed an operation to reconnect to the information processing device 40 caused by the faulty light from the system console.

The feature of the failed line recovery method according to the present invention is that the host program 11 gives a time monitoring instruction signal C to the timer device 13. Note that as the timer device 13, a soft timer that is originally included in the data processing device 10 can be used.

The timer device 13 activates the re-opening processing unit 14 at each time according to the time monitoring instruction signal C given from the host program 11.
A line re-opening instruction signal d is given to the line re-opening instruction signal d. Note that the time interval of the re-opening instruction signal d issued by the timer device 13 may be instructed by the host program 11 as described above, or may be given in a fixed manner.

When the re-establishment processing section 14 is given the re-establishment instruction signal d, it scans the line state information held by the line state management section 12. Then, a data transmission/reception command for re-opening is given to the channel device 20 by the re-opening instruction signal e for the line defined as the failed line. The data transmission/reception command is interpreted by the channel device 20 and further by the communication control device 30, and the information processing device 4 connected via the communication line.
request o to reopen the line.

This request is made to all lines defined as faulty.

If this request is successful, the re-establishment processing unit 14 notifies the higher-level program 11 of the restored line information using a successful re-establishment instruction signal f, and the line status management unit 12 using a line recovery instruction signal g. . Based on this restored line information, the higher level program 11 displays the restored line on the system console and notifies the operator. Additionally, the line status management unit 12 updates the line status information it holds.

When the restoration of all failed lines is completed, the re-opening processing unit 1
4 gives a timer stop instruction signal to the timer device 13 so that the timer device 13 will no longer be activated.

If the above request is not successful, the re-opening processing unit 14:
Every time the timer device 13 instructs re-establishment, the failed line is re-established again.

As described above, the faulty line restoration method of the present invention makes it possible to restore a faulty line without human intervention.

〔Effect of the invention〕

As explained above, the present invention has the excellent effect of being able to perform recovery processing for a faulty line without human intervention.

Therefore, there are advantages in that the burden on the operator who operates the information processing apparatus is reduced, and the deterioration in the operation of the network system caused by the delay in connecting the interference light to the information processing bag is reduced.

[Brief explanation of drawings]

The figure is a block configuration diagram of a failed line recovery device according to an embodiment of the present invention. DESCRIPTION OF SYMBOLS 10... Data processing device, 11... Upper program, 12... Reopening processing part, 13... Timer device, 1
4... Line status management unit, 20... Channel device, 3
0... Communication control device, 40... Information processing device, a.
... Transmission/reception command signal, b... Line status update command signal,
C...Time monitoring instruction signal, d, e...Reopening instruction signal, f...Reopening success instruction signal, g...Line recovery instruction signal, h...Timer stop instruction signal.

Claims (1)

[Claims] (1) A host information processing device including a data processing device, a channel device, and a communication control device, and a plurality of information processing devices connected to the host information processing device via communication lines, In a data communication failure line recovery processing method including a line status management means for managing line status of the plurality of information processing apparatuses connected to the apparatus via the communication line, the failure line is recovered at a predetermined timing. timer means for outputting a re-establishment start signal; 1. A restoration method for a faulty line, comprising: re-establishment processing means for outputting an establishment instruction signal to the channel device.