JPH1165866A - Method for managing double control boards and file boards - Google Patents

Abstract

PROBLEM TO BE SOLVED: To switch doubled file boards or devices more speedily and smoothly. SOLUTION: Transmission devices 11 and 12 are doubled ad their control boards 131 and 14 and file boards 15 and 16 are independently doubled. The file boards 15 and 16 are physically connected to both the systems of the control boards, but the file devices 15 and 16 are logically connected to a system control board for operation. When the operation system between the control boards 13 and 14 changes, the connection destinations of the file board systems are also switched at the same time. If a switching request is generated by the control board 13 or 14 during the start-up processing of the operation system control board, the starting-up processing is quit and a given switching process is carried out according to a combination of the operation states of the control boards 13 and 14 and the operation states of the file boards 15 and 16.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for managing a duplicated apparatus control panel and a duplicated file panel connected to each other on a transmission apparatus.

[0002]

2. Description of the Related Art In a transmission apparatus, lower device operation information required when starting a lower device such as a soft strap is recorded on a file board. In order to improve the usability of the device startup and to improve the safety of the service, when starting the device with a dual file panel configuration, in order to obtain normal lower-level device operation information from the file panel, the file must be It is necessary to determine the operation system of the board. In addition, in order to determine the operation system of the file board, it is necessary to manage the starting state of the file board. Furthermore, since the control panel in a redundant configuration is a cold standby, the control panel must be started even when the control panel is switched. Operation system information and start-up state information are required.

In the conventional file panel management system, the management of the entire apparatus and the management of the file panel are performed by different tasks for the purpose of facilitating the respective management. For this reason, when switching / starting up the control panel of the system, in order to match the device with the file panel, the message transmission / reception procedure related to the collection of file panel management information must be performed between the file panel control task and the device management task. The startup / switching process is executed while stepping on and synchronizing the tasks. Further, in this technique, since the process of setting up the file board is performed with a higher priority, it is not possible to interrupt the file board setting process and execute the switching process.

For example, Japanese Patent Application Laid-Open No. 4-116739 proposes a method for shortening the time required for the restoration (startup) of a duplicated file system. In this technology, the status of the file system (file board) is managed by the file status flag, so that when the system is restored,
Judge whether the previous system operation was normal or not, if it was normal, start the system without performing recovery processing, and if the previous system operation ended abnormally, perform recovery processing After that, start up the system. If the previous system operation was normal, there is no need to perform recovery processing, so the number of file I / O times can be reduced accordingly, and the system startup time can be shortened .

[0005]

As described above, in the conventional file board management system, the management of the apparatus and the management of the file board are performed by separate tasks for the purpose of facilitating the management of each. When switching / starting up the control panel of a hot-swappable system, send and receive messages related to the collection of file panel management information between the file panel control task and the device management task in order to match the equipment with the file panel. It is necessary to take steps such as the above, and synchronization between tasks must be taken.

Therefore, in a device in which the file disk is duplicated and the file management and the device management are controlled by different tasks, the time between the occurrence of the factor for switching the file disk or the device and the actual switching of the file disk or the device is considered. There is a problem that the time required is longer than that of a single file panel device.

Further, in the conventional file board management system, since hot-swap is not taken into account, the start-up process of the file board is a series of processes, and there is no timing for executing other processes until the process is completed. Was. For this reason, even when switching occurs between the control panel and the file panel, a time lag occurs before the switching operation is actually started, which is referred to as instantaneous switching by hot-swapping, and the switching time becomes longer. For this reason, even if a factor for switching the file board occurs during the startup of the file board, there is a problem that the switching cannot be performed until the file board startup processing ends normally or abnormally.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and provides a dual file system and a management method of a dual file system and a device capable of switching the duplicate file system or device more quickly and smoothly. It is intended to be.

[0009]

In order to solve the above-mentioned problems, according to the first aspect of the present invention, the control panel 0 and the control panel 1 and the file panel 0 and the file panel 1 are mutually connected. A dual control panel and a file panel management method for connecting and sharing the file panel 0 and the file panel 1 and switching between the control panel 0 and the control panel 1 by predetermined switching means; If a switching request occurs during the start-up process of the active control panel among the 0-system or the 1-panel control system, the start-up process is interrupted, and the operation of the 0-system and the 1-panel control system at that time. A predetermined switching process is performed according to a combination of a state and an operation state of the file board 0 and the file board 1.

[0010] In order to solve the above-mentioned problems,
In the invention according to claim 2, the control panel 0 and the control panel 1 are connected to each other, and the file panel 0 and the file panel 1 are connected to each other. The file panel 0 and the file panel 1 are shared, and a switch is used. In a dual control panel and file panel management method for switching between the control panel 0 system and the control panel 1 system,
By managing the state of the control panel and the state of the file panel with one task, during the start-up process of the operating system control panel, the operating system file panel is created based on the status change information in the device and the logical check result of the file panel contents. When the operation file panel is normal, the lower device operation information is downloaded from the operation file panel to the lower device, and when the information in the operation file panel is not normal, the lower device operation information is transmitted to the lower device. And uploading the default value of the lower-level device operation information held inside the lower-level device to the active file panel, and according to the downloaded and loaded or uploaded information, the operational file panel and the lower-level device. Start-up processing is performed, and if the protection file panel is operable, the status change information in the device is started. After the contents of the protection file board are cleared once, the information is copied from the working file board, and the in-device state change information is set to the startup completed state and the protection file board is started. Processing is performed.

According to the third aspect of the present invention, there is provided the second aspect.
In the redundant control panel and file panel management method described above, if the operating file panel is removed during device operation, the non-operating file panel is If there is no non-operating file panel, the operating panel information managed by the control panel is maintained without changing the operating system information of the file panel without changing the operating system information. When a file panel is inserted, the lower-level device operation information is uploaded from the lower-level device, the in-device state change information of the active file panel is set to the startup completed state, and a non-operational file panel is inserted during device operation. Is characterized in that information is copied from the working file board, and the in-apparatus state change information of the non-working file board is started and completed.

Further, according to the invention of claim 4, according to claim 2,
In the redundant control panel and file panel management method described above, if a control panel switching factor occurs, even if the file panel startup process is being executed on the active control panel, the file panel The start-up process is immediately interrupted, and the process of switching the control panel to the non-working system is started, ignoring information on the start-up process of the file panel.

[0013] According to the fifth aspect of the present invention, the second aspect is provided.
In the redundant control panel and file panel management method described above, the start-up processing is started by setting the in-apparatus state change information to an incomplete start-up state, and setting the in-apparatus state change information to completion of start-up. If the relevant processing is interrupted due to factors such as system switching of the control panel during the execution of the file panel startup processing, the relevant file panel is placed in the normal operation state based on the in-device state change information. It is determined that it is not the case, and the incomplete contents of the file panel whose startup process was interrupted are not set as lower-level device operation information, and the next control panel startup process or the startup of the file panel during control panel operation Processing is performed.

In the present invention, the control panel and the file panel are managed by one task, and the states of the control panel and the file panel are separately managed, so that switching occurs during a start-up process or the like. However, the start-up process is interrupted and switching can be performed. In addition, the same basic logic that can be used to start a file panel, which can be interrupted, is used immediately when the control panel is started, when the control panel is switched, and when the file panel is switched during operation of the control panel. Switching and startup are possible. Furthermore, for the non-working file disk, the information is written after being initialized once so that the inconsistency of the file disk does not occur after the occurrence of the abnormal state such as the interruption of the start-up process.

[0015]

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

A. FIG. 1 is a block diagram showing a configuration of a transmission apparatus according to an embodiment of the present invention. In the figure, the transmission devices 11 and 12 are duplicated, and the control panels 13 and 14 and the file panels 15 and 16 are duplicated independently. The file boards 15 and 16 are physically connected to both systems of the control board, but logically the file boards 15 and 16 are both connected to the operation control board. At this time, both the file boards 15 and 16 are separated from the protection side control panel. That is, the connection circuits 17 and 18 are not connected at the same time. When the operation systems of the control panels 13 and 14 are switched, the connection destinations of both the file panels are also switched at the same time.

Next, FIG. 2 shows the control panels 13 and 14 described above.
FIG. 2 is a block diagram showing a functional configuration of the first embodiment. In the figure, control panels 13 and 14 are composed of a device control section 21 and a file panel management section 2.
And 2. The device state change information 31 includes:
It is composed of information on the own system operation system, information on other system implementation / failure, information on file panel implementation / failure / startup completed or not-started. The device control section 21 can acquire various types of information from the in-device state change information 31. The fill board management unit 22 manages upload / download of information to the file board 15 under the control of the device control unit 21.

In the hardware having the above configuration, the control panel 13 and 14 shown in FIG. 1 internally manage the transmission shown in FIG. 5 based on the combination of the control panel management state shown in FIG. 3 and the file panel management state shown in FIG. An apparatus management state is created, and operation system management of the control panels 13 and 14 and the file panels 15 and 16 is executed based on the transmission management state.

In the control panel management state, as shown in FIG.
1. Initial state, 2. Waiting for lower CPU operation instruction response,
3. 3. File board is starting up. 4. Start-up of lower-level task; Waiting for lower CPU startup completion response,
6. 6. Active system operation status, There is a protection operation status. In addition, as shown in FIG. 1. Waiting for file board check response; 2. Waiting for file board startup incomplete instruction response; 3. Waiting for file board clear response; 4. Waiting for file board check response after clearing file board; 5. Waiting for file board startup response; 6. Waiting for file board startup completion instruction response; There is a file board operation status.

Then, as shown in FIG. 5, the transmission device management state includes: Initial state, 2. Lower C during control panel startup
2. Waiting for PU operation instruction response; 3. Waiting for file panel check response during control panel startup; 4. Waiting for file board launch incomplete instruction response; 5. Waiting for file panel clear response during control panel startup, 6. 6. Waiting for check response after clearing file panel during control panel startup, 7. 7. Waiting for file panel startup response during control panel startup, 8. Waiting for control panel startup completion instruction response during control panel startup,
10. Control panel is starting up. Lower task is starting up. Waiting for a response to start up the lower CPU during control panel startup,
11. 11. Operational operation state, Protection system mounted state, 1
3. 13. Waiting for active file board clear response; 14. Waiting for file board check response during operation; 15. Waiting for file board launch response during operation; There is a waiting state for the file board startup completion instruction response during operation. In FIG. 5, in each state, the corresponding control panel management state and file panel management state are clearly indicated by the numbers.

The prerequisites for managing the operation of the control panels 13, 14 and the file panels 15, 16 executed by the control panels 13, 14 based on the transmission management state are as follows: It is necessary to implement at least one file board. If the status and information of at least one file panel are determined to be correct when the control panel is started, the file panel is used as the active panel of the file panel, and the information stored in the active file panel is used as the lower-level device. To download. -When the control panel is started up, the file panel is mounted without failure, but if it is determined that the information on the file panel is invalid, the separately stored default value is downloaded to the lower-level device, and the lower-level device is downloaded. To upload information to the file board. -If the file panel is determined to be normal for both systems, the information of the file panel that was active at the time of the previous operation is downloaded to the lower-level device and copied to the file panel of the non-operating system. -If the file panel is removed after the control panel starts up and enters the operating state, the transmission apparatus is operated in the normal state. -If the file panel is mounted during operation of the control panel, copy the information from the active file panel if there is an active file panel, and upload the information from the lower device if there is no active file panel.

B. Operation of Embodiment FIG. 6 is a flowchart for explaining a process for managing the control panel management state shown in FIG. As shown in FIG. 6, at the time of initial startup of the control panel, after the task is started, first, the own system status and other system status of the control panel are acquired from the information 31 shown in FIG. It is determined whether the system is a system. If the own system is not the active system, in step S46, the non-active system is started up. On the other hand, when the own system is the active system, the control panel management state is
The file board shown in FIG. 3 is being started, and the mounting / failure / operation status of the file boards of both systems is acquired from the information 31 shown in FIG. 2, and the file boards are checked in step S42.
In step S43, it is determined whether a file board is mounted.

If the active file panel is normally mounted before switching the device control panel or before the power is turned off, the corresponding file panel is set as the active file panel, and the previous active file panel is not normally mounted. If the last protection file board is normally mounted, step S82 shown in FIG.
Then, it is determined that the operating file board is mounted, and the above-described startup processing is executed.

Next, in step S44, a process of starting up the mounted file board and lower-level device is executed based on the file board operating state and the file board operating system information. Here, FIG. 8 is a flowchart for describing the file board start-up processing in step 44 in detail. First, in step S62, the lower-level device operation information is downloaded from the active-type file disk to the lower-level device in order to start up the active-type file disk and the lower-level device.

After downloading, in step S63, it is determined whether there is an inactive file board. If there is an inactive file board, in order to start up the inactive file board, in step S64, the inactive file board is started. The in-service file panel is set to the in-apparatus state change information 31 as incomplete startup. Until the setting is completed, a file board start-up non-completion instruction response wait state shown in FIG. The information set in step S64 prevents the file system from being operated as a normal operating system in the next file panel start-up processing when an abnormal state such as start-up processing is interrupted due to switching or the like. Used for

Next, in step S65, all information on the non-operation file board is cleared. In step S66,
Copies information on lower-level devices from the active file panel to the non-active file panel. Then, in step S67, the in-device state change information 3
Set to 1.

With the above, the file board start-up processing is completed.
Step S4 shown in FIG. 6, which is the control panel initial startup process
In step 5, the lower task and the lower CPU are started, and the control panel enters the active system operating state.

In step S61 shown in FIG. 8, if it is determined that the active file board is mounted, but the information without the file board is not normal, the lower-level device starts the operation with the default value. Upload the lower device information to the system file board.

For this purpose, first, in step S shown in FIG.
At 69, the default value held internally is set in the lower-level device. Next, in step S70, the in-apparatus file panel is set as in-apparatus state change information 31 as incomplete startup. In step S71, all information on the active file board is cleared, and in step S72, information is uploaded from the lower-level device. Then, in step S73, the startup of the active file panel is set to the in-apparatus state change information 31 as completion of startup.

Next, FIG. 9 is a flowchart for explaining the processing executed during the operation of the operation control panel.
During operation of the operation system control panel, the operation system switching process between the file panel and the control panel is executed based on the information received periodically from the in-device state change information 31 in step S80 shown in FIG. If the active file panel is removed or fails, or if the non-active file panel is normally mounted, the active system is switched in step S87.

If it is determined in step S82 that the active file board has been mounted, the flow advances to step S83 to perform a file board startup process. Step S83
Is the same process as step S44 in FIG.
The details are as shown in FIG. That is, in the file board start-up process, information is uploaded from the lower-level device in step S72 shown in FIG. 8, and the active file board is set in the in-device state change information 31 as step-up completed in step S73 in FIG. .

Next, at step S84 shown in FIG. 9, it is determined whether or not the state of the protection file board has been changed. If it is determined that the protection file board has been mounted, then at step S85 Perform file board startup processing. Step S85 is the same process as step S83, ie, step S44 in FIG. 6 described above.
As shown in FIG. That is, in the file board start-up processing, information is copied from the active file board in step S66 shown in FIG.
Set to.

While the own system is operating as the operation system control panel, FIG.
According to the in-device state change information 31 periodically received in step S80, if the state is to be switched to the non-operational control panel, the non-operational control panel is immediately Performs startup processing and becomes the protection system. That is, when the operation system of the control panel is switched during the start-up processing of the file panel, the start-up completion information in step S67 shown in FIG. 8 is not set in the file panel. The startup process of the operation control panel is executed in an abnormal state.

Next, FIG. 7 is a flowchart for explaining the processing executed when the protection control panel of FIG. 3 is mounted. When the own system is mounted as a protection control panel, FIG.
Based on the in-device state change information 31 periodically received in step S48 shown in FIG. That is, in step S49, it is determined whether or not a status change has occurred in the other system's own system. If an abnormality has occurred in the active system, the own system operation information is immediately added to the in-device state change information 31 in step S50. Then, the active system start-up process is executed in steps S41 to S45 shown in FIG.
This is exactly the same processing as when the operation control panel is initially started.

By executing the same processing as the above-mentioned procedure at the time of switching the control panel, the control panel can be immediately forcibly switched even during the startup processing of the file panel. The file panel being operated holds the file panel startup incomplete state in the in-apparatus state change information 31.

The above operation can be summarized as follows.
At 14, the control panel states of both systems can be read from the in-apparatus state change information 31 shown in FIG. Further, the operating system control board can read the operating states of both the file boards from the in-device state change information 31. Although the in-device state change information 31 of the protection control panel also includes the operation status information of the file panel, the file panels 15 and 16 are not connected to the protection control panel. The operational state does not make sense.

The control panels 13 and 14, which are normally operating without any failure, have the control panels 13 and 14 started up.
When the control panel operating system 0 and the file panel operating system 0 are used, the in-device state change information 31

From the control panel 0 system, control panel white system (0 system) operating state: operation, normal control panel other system (1 system) operation state: non-operation, normal Normal ・ File panel 1 system operation status: Not operational, normal can be read. Further, since the contents of the file boards of both systems are copied, they are the same, and the operating system information: 0 system is written in both file boards 15 and 16.

In this state, when the operation of the control panels 13 and 14 is once terminated and then restarted, the file panels 15 and 16 of both systems are in normal operation based on the hardware information, and the logical file If the result of the check of the board is normal, the previous operating system written in the file board is read out, and as a result, the file board of system 0 is set as the active system.

After the active file panel is determined, the file is downloaded to the lower-level device while waiting for a file panel startup response shown in FIG.
Processing including copying to the non-working file board is performed, the start-up of the entire transmission apparatus is completed, and the state becomes the working system operation state.

FIG. 10 is a state transition table relating to the start-up of the apparatus and the start-up of the file board by the apparatus that has realized the present invention. The “state” in the illustrated row direction is defined according to the transmission apparatus state shown in FIG. For example, when power (Power ON) is turned on in the initial state, the lower C
After transmitting the PU operation instruction, the lower CPU during device startup
Transition to the operation instruction wait state. Further, when a lower CPU operation instruction response is received in the lower CPU operation instruction waiting state during apparatus startup, a file board check request is transmitted, and then a transition is made to the apparatus startup file board check response waiting state. Similarly, in each state described in the top row, when a trigger in the left column occurs, the processing described on the intersection is executed, and then the state corresponding to the number indicated by the arrow is performed. Transition to.

Therefore, the processes relating to the file boards 15 and 16 are incorporated not in separate processes but in a series of processes when the apparatus is started up / switched. In other words, unless the start-up processing of the file boards 15 and 16 is completed,
The apparatus startup processing is not continued. The same logic is used when starting / switching the device and when starting / switching the file panel during operation of the device.
Each processing such as checks 5 and 16, start-up processing, and determination of the active system is performed. At the time of switching, after receiving the switching trigger, the state returns to the state at the time of starting the apparatus, whereby the start-up processing is completely repeated.

[0043]

As described above, according to the present invention, the control panel and the file panel are managed by one task, and the states of the control panel and the file panel are separately managed. Even if the switching occurs during the start-up process, there is an advantage that the start-up process can be interrupted and switched. In addition, the same basic logic that can be used to start a file panel, which can be interrupted, is used immediately when the control panel is started, when the control panel is switched, and when the file panel is switched during operation of the control panel. Switching and start-up become possible, and there is an advantage that the time from the occurrence of the control panel switching factor to the actual execution of the switching process can be reduced.
Furthermore, for the non-working file disk, by initializing and writing the information, the advantage that the file disk inconsistency does not occur after the occurrence of an abnormal state such as interruption of the start-up process. Is obtained.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a transmission device according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a functional configuration of a control panel.

FIG. 3 is a conceptual diagram showing a control panel management state.

FIG. 4 is a conceptual diagram showing a file board management state.

FIG. 5 is a conceptual diagram showing a transmission device management state based on a control panel management state and a file panel management state.

FIG. 6 is a flowchart for explaining a control panel operation system start-up process.

FIG. 7 is a flowchart for explaining a non-operation control panel process;

FIG. 8 is a flowchart illustrating a file board start-up process.

FIG. 9 is a flowchart for explaining the operation control panel processing.

FIG. 10 is a conceptual diagram showing a state transition table related to device startup and file board startup.

FIG. 11 is a conceptual diagram showing a state transition table relating to device startup and file board startup.

FIG. 12 is a conceptual diagram showing a state transition table relating to device startup and file board startup.

FIG. 13 is a conceptual diagram showing a state transition table relating to device startup and file board startup.

[Explanation of symbols]

 REFERENCE SIGNS LIST 11 transmission device 12 transmission device 13 control panel 14 control panel 15 file panel 16 file panel 21 device control section 22 file panel management section 31 device state change information

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Sotoku Kumagai 5-7-1 Shiba, Minato-ku, Tokyo Within NEC Corporation (72) Koichi Matsumoto 5-7-1 Shiba, Minato-ku, Tokyo NEC Corporation

Claims (5)

[Claims] 1. A control panel 0 system and a control panel 1 system, and a file panel 0 system and a file panel 1 system are connected to each other,
In the above-described dual control panel and file panel management method in which the file panel 0 and the file panel 1 are shared and the control panel 0 and the control panel 1 are switched by a predetermined switching means, the control panel 0 or When a switching request is generated during the start-up process of the active control panel of the control panel 1 system, the start-up process is interrupted, and the operation states of the control panel 0 system and the control panel 1 system at that time are as follows: A dual control panel and file panel management method, wherein a predetermined switching process is executed in accordance with a combination of the operation states of the file panel 0 system and the file panel 1 system. 2. Control panel 0 system, control panel 1 system, file panel 0
System and the file panel 1 are connected to each other, the file panel 0 and the file panel 1 are shared, and a dual control panel and a file panel are used to switch between the control panel 0 and the control panel 1 by a switch. In the management method, the control panel state and the file panel state are managed by one task, and during the start-up processing of the operation control panel, the state change information in the device and the logical check result of the file panel contents are obtained. Determine the active file panel, download the lower-level device operation information from the active file panel to the lower device if the active file panel is normal, and lower-level device if the information in the active file panel is not normal. Download the lower-level device operation information to the device and upload the default value of the lower-level device operation information held inside the lower-level device to the active file panel Performs startup processing of the operation system files Release and the lower device in accordance with the down and loaded or uploaded information, then, when the non-active file panel can be operational,
The status change information in the device is set to the unfinished state, the contents of the protection file panel are once cleared, the information is copied from the operation file disk, and the status change information in the device is set to the completion status. A method for starting up a control panel and a file board, characterized by executing a process for starting up an active file board. 3. When the active file panel is removed during operation of the apparatus, if the non-active file panel is operable,
The protection file panel is used as the operation file panel, and if there is no protection file panel, the operation status of the file panel is not changed and the device operation status managed by the control panel is maintained without being mounted. However, if the active file panel is inserted during operation of the device, the lower device operation information is uploaded from the lower device and the status change information in the device of the operation file panel is set to the start-up completed state. If you insert an active file board,
3. The dual control panel and file panel management method according to claim 2, wherein information is copied from the active file panel, and the in-apparatus state change information of the non-operation file panel is completed. 4. When a control panel switching factor occurs, the file panel start-up processing is immediately interrupted even if the file panel start-up processing is being executed in the active control panel,
3. The dual control panel and file panel management method according to claim 2, wherein the process of switching the control panel to the non-operating system is started ignoring information on the startup processing of the file panel. 5. The start-up process is started by setting the in-apparatus state change information to an incomplete start-up state, and is completed by setting the in-apparatus state change information to completion of start-up. If the relevant process is interrupted due to factors such as system switching of the control panel during execution of the process, it is determined that the relevant file panel is not in the normal operation state based on the in-device state change information, and the start-up process is performed. Executing the next start-up process of the control panel or the start-up process of the file panel during operation of the control panel without setting incomplete contents of the interrupted file panel as lower-level device operation information. Item 2. The method for managing a duplicate control panel and file panel according to item 2.