JP3209582B2 - Redundant configuration data processing system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data processing system having a duplex configuration constituted by serially interlaced connections of a plurality of types of processing panels having a duplex configuration. The present invention relates to a redundant configuration data processing system that enables quick processing panel switching processing when a failure occurs.

In a data processing system having a duplex configuration constituted by serial confounding connections of a plurality of types of processing panels having a duplex configuration, if a failure occurs in a processing panel operating as an active system, a standby processing panel is replaced with a new active system panel. A switching process is performed to operate as. This switching process needs to be performed quickly even when the number of processing panels increases.

[0003]

2. Description of the Related Art In a conventional data processing system having a duplex configuration in which a plurality of types of processing panels adopting a duplex configuration are serially connected, as shown in FIG. When a failure is detected in the processing panel 1 operating as the active system, a failure is detected in the processing panel 1 by directly monitoring whether or not a failure has occurred in each processing panel 1. In this case, the processing panel 1 is switched to a new active system.

[0004]

However, according to such a conventional technique, as the number of processing panels increases, it takes more time to collect failure information.
When the number of processing panels increases, there is a problem that the processing of switching processing panels cannot be performed quickly.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and is an object of the present invention is to provide a redundantly configured data processing system comprising serially connected plural types of processing panels having a redundant configuration. It is an object of the present invention to enable a quick process panel switching process in the event of a failure, even when the process is performed.

[0006]

FIG. 1 shows the principle configuration of the present invention. In the figure, reference numeral 10 denotes a duplex configuration data processing system equipped with the present invention.

[0007] This dual configuration data processing system 10
A plurality of processing panels 1 adopting a duplex configuration are serially connected in a confounding manner via a communication path 3, and a control mechanism 2
The processing panel 1, which is set as the active system, performs data processing by transferring communication data.

Reference numeral 4 denotes a selecting means provided in the processing panel 1 except for the processing panel 1 at the first stage. According to an instruction from the control mechanism 2, any one of the communication paths 3 between the two processing panels 1 at the preceding stage. One of the communication paths 3 is selected. The communication path selected by the selection means 4 of each processing panel 1 is a communication path connecting the processing panels 1 operating as the active system.

Reference numeral 5 denotes first detecting means provided in each processing panel 1, and detects occurrence of a failure state in the panel. This
When the first detecting means 5 detects the occurrence of a failure state, the first detection means 5 sets the failure information at the assigned specified position on the communication data transferred to the subsequent stage.

Reference numeral 6 denotes second detection means provided in the processing panel 1 except for the processing panel 1 at the front stage. For example, by checking a prescribed inspection signal transmitted from the processing panel 1 at the front stage, Of the communication path 3 with the processing panel 1 is detected. When detecting the occurrence of the failure state, the second detection means 6 sets the failure information at the assigned specified position on the communication data transferred to the subsequent stage.

Reference numeral 7 denotes a specifying means provided in the control mechanism 2, which specifies a failure occurrence location of the processing panel 1 set as an active system. Reference numeral 8 denotes a setting means provided in the control mechanism 2, which sends a selection control signal for setting the active processing panel 1 to the selecting means 4 of the processing panel 1.

[0012]

According to the present invention, first with the processing panel 1 and the second
When detecting the occurrence of a fault condition, the detecting means 5 and 6 set the fault information at the assigned specified position on the communication data transferred to the subsequent stage. In the present invention, FIG.
As shown in FIG.
The recording position of the failure information for
1 is adjacent and follows the order of processing panel 1
It is configured to be prepared in. This configuration
The second detecting means 6 is, for example, shown in FIG.
Processing panel 1 connected to the failure occurrence communication path
The recording position on the communication data prepared in association with
Information, while the first detection means 5, for example,
As shown in FIG. 7 described below, the self-processing panel 1 and a pair
Description on communication data prepared in association with processing panel 1
Processing is performed to set the failure information at the recording position.

[0013] Therefore, on the communication data transferred to the processing panel 1 at the last stage, the channel forming the fault information in the panel faulty processors panel 1 operating as the active system, the communication path of the active system Since the 3rd failure information is set, by monitoring this, it is possible to identify the failure location of the active processing panel 1 located before the last processing panel 1.

[0014] Now, specific means 7 of the control mechanism 2, first and second detection means having the processing panels in the last stage 5,6
Check the detection result of
By checking the failure information on the communication data transferred to the processing panel 1, it is checked whether or not a failure has occurred in the processing panel 1 operating as the active system. Determine if a failure has occurred.

The failure processing panel 1 is specified by the specifying means 7.
Is specified, the setting unit 8 sets the failed processing panel 1
The standby processing panel 1 sends a new selection control signal to become a new active system, thereby executing the setting processing of the active system that bypasses the failed processing panel 1.

As described above, according to the present invention, the control mechanism 2
, By monitoring only processing panel 1 at the last stage, since where the failure of the processing panels 1 operating as the active system will be able to identify whether the occurred, that the number of the processing panel 1 is increased Even if there is, the switching process of the processing panel 1 can be executed quickly.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to embodiments. FIG. 2 illustrates a connection configuration example of the processing panel 1 of the redundant configuration data processing system 10 described in FIG. In the drawing, the same components as those described with reference to FIG. 1 are denoted by the same reference numerals, A0 and A1 are processing panels provided at the forefront, and B0 and B1 are processing panels provided at the subsequent stage of processing panels A0 and A1. , C0, C1 are processing panels B0, B
The processing panel D0 and D1 provided after the processing panel C0 and C1 are the last processing panels provided after the processing panel C0 and C1.

[0018] As described in FIG. 1, in the present invention, processing panel B0, C0 (B1, C1) is a failure in the communication path 3 between the preceding processing panel 1 detects the occurrence, This configuration adopts a configuration in which failure information is set at an assigned specified position on communication data to be transferred to a subsequent stage.

FIG. 3 shows an example of the data format of the communication data. In the data format in this figure,
The communication data includes a failure information allocating unit 20 serving as a failure information allocating position, and a test signal allocating unit 21 serving as a test signal allocating position used for detecting occurrence of a failure in the communication path 3 between the preceding processing panel 1. , And a communication data section 22 which is an original communication data allocation position.

FIG. 4 shows an embodiment of a failure information allocation position set in the failure information allocation section 20. In the figure,
The part is the allocation position of the failure information of the communication path 3 between the processing panel A0 and the processing panels B0 and B1, and the part is the allocation of the failure information of the communication path 3 between the processing panel A1 and the processing panels B0 and B1. The position and the part are the allocation positions of the failure information of the communication path 3 between the processing panel B0 and the processing panels C0 and C1, and the part is the processing panel B1 and the processing panels C0 and C1.
Of the failure information of the communication path 3 between the processing panel C0 and the processing panel D0, D1.
The allocation position and the portion of the failure information are the allocation positions of the failure information of the communication path 3 between the processing panel C1 and the processing panels D0 and D1. However, since the processing panels D0 and D1 are at the last stage, it is not necessary to set the failure information in the parts of the processing panels D0 and D1.

That is, the processing panels B0 and B1 check the inspection signal of the inspection signal allocating unit 21 of the communication data transferred from the processing panel A0, and the failure of the communication path 3 with the processing panel A0 occurs. Upon detection of, as shown in (a) of FIG. 5, portion (connected to the failure channel of
Communication data prepared in association with the pre-processing panel 1
Failure information is set in the recording position on the data panel, and the processing panel A1 is set.
When the occurrence of a failure in the communication path 3 with the processing panel A1 is detected by checking the inspection signal of the inspection signal allocating unit 21 of the communication data transferred from the communication device, as shown in FIG. Set failure information in the part.

The processing panels C0 and C1 check the inspection signals of the inspection signal allocating unit 21 of the communication data transferred from the processing panel B0, and
When the occurrence of a failure in the communication path 3 between the communication panel 3 and the communication panel 3 is detected, failure information is set in the portion as shown in FIG. When the occurrence of a failure in the communication path 3 with the processing panel B1 is detected by checking the inspection signal of (1), failure information is set in the portion as shown in (d) of FIG.

The last processing panels D0 and D1 are:
When the occurrence of a failure in the communication path 3 with the processing panel C0 is detected by checking the inspection signal of the inspection signal allocating unit 21 of the communication data transferred from the processing panel C0, the processing in the own panel is performed. In addition, as shown in FIG.
When the failure information is set in the portion and the inspection signal of the inspection signal allocating section 21 of the communication data transferred from the processing panel C1 is checked, the occurrence of the failure of the communication path 3 with the processing panel C1 is detected. As shown in FIG. 5 (f), failure information may be set in a portion.

On the other hand, as described with reference to FIG. 1, in the present invention, processing panels A0, B0, C0 (A1, B1, C1)
Has a configuration in which, when the occurrence of a failure in its own panel is detected, the failure information is set at the assigned specified position on the communication data to be transferred to the subsequent stage.

Although the failure information of the in-panel failure can be set at an allocation position different from the failure information allocation unit 20, the processing panel A0 (B0, C0) operates as the active system. When there is, the processing panel A1 (B1, C
1) stands by as a standby system, while processing panel A1 (B
1, (C1) is operating as the active system, the processing panel A0 (B0, C0) is on standby as the standby system. Therefore, the control mechanism 2 described with reference to FIG.
Which processing panel A0, B0, C0 (A1, B1, C
It is in a position to recognize whether 1) sets the failure information of the failure in the panel.

[0026] Now, as shown in FIG. 6, as the allocation position of the fault information in the panel failure of processing panels A0 (A1), a portion shown in FIG. 4 (1) portion (own processing path
Prepared in association with the panel 1 and the processing panel 1 to be paired with.
It is possible to use the recording position) on the transmitted data when and as allocation location of the failure information in the panel failure of processing panels B0 (B1), a portion shown in FIG. 4 (2) partial it is possible to use, and, as the allocation position of the fault information in the panel failure of processing panels C0 (C1), it is possible to use a is (3) partial portion shown in FIG.

[0027] That is, processing panels A0 (A1) detects the failure in the own panel, as shown in (alpha) in Fig. 7, sets the fault information (1) portion. When the processing panel B0 (B1) detects the occurrence of a failure in the panel, the processing panel B0 (B1) sets failure information in the part (2) as shown in (β) of FIG. Then, processing panel C0 (C1) is,
When the occurrence of a failure in the own panel is detected, failure information is set in the portion (3) as shown in (γ) of FIG.

[0028] In this way, processing panel of the last stage D0
On the communication data transferred to (D1), processing panels A0, B0, C0 (A1, B
Since the failure information of the in-panel failure in (1, C1) and the failure information of the communication path 3 forming the working communication path are set, by monitoring these, the last processing panel of the working system is set. It is possible to specify the failure location of the working processing panels A0, B0, C0 (A1, B1, C1) located at a stage prior to D0 (D1).

From this, the control mechanism 2 shown in FIG. 1 determines the failure detection result of the in-panel failure detected by the last active processing panel D0 (D1) and the previous active processing panel C0 (C1). By checking the failure detection result of the communication path 3 between the communication panel 3 and the failure information on the transferred communication data, the processing panels A0, B0, C0, D0 (A1, B1, C1, D
It is checked whether a failure has occurred in 1). If a failure has occurred, which processing panel A0, B0, C0, D0
It specifies whether a failure has occurred in (A1, B1, C1, D1).

When the control mechanism 2 specifies the failed processing panels A0, B0, C0, D0 (A1, B1, C1, D1), the failed processing panels A0, B0, C1
0, D0 (A1, B1, C1, D1) standby processing panels A1, B1, C1, D1 (A0, B0, C0, D
0) sends a new selection control signal so as to become a new active system, so that the failed processing panels A0, B0, C
An active system setting process that bypasses 0, D0 (A1, B1, C1, D1) is executed.

[0031]

As described above, according to the present invention,
In a redundant configuration data processing system consisting of multiple types of processing panels with a redundant configuration and serial confounding connection, monitoring only the last stage processing panel causes a failure in the processing panel that operates as the active system. Since it is possible to specify whether the processing has been performed, even if the number of processing panels increases, the processing panel switching processing can be executed quickly.

[Brief description of the drawings]

FIG. 1 is a principle configuration diagram of the present invention.

FIG. 2 is a connection configuration example of a processing panel of a redundant configuration data processing system.

FIG. 3 is an explanatory diagram of a data format of communication data.

FIG. 4 is an explanatory diagram of an allocation position of failure information.

FIG. 5 is an explanatory diagram of a failure information setting process.

FIG. 6 is an explanatory diagram of a failure information allocation position.

FIG. 7 is an explanatory diagram of a failure information setting process.

FIG. 8 is an explanatory diagram of a conventional technique.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 processing panel 2 control mechanism 3 communication path 4 selecting means 5 first detecting means 6 second detecting means 7 specifying means 8 setting means 10 duplex configuration data processing system

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Akio Morimoto 1015 Kamiodanaka, Nakahara-ku, Kawasaki City, Kanagawa Prefecture Inside Fujitsu Limited (56) References JP-A-4-104641 (JP, A) JP-A-2-86239 (JP, A) JP-A-61-135242 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) G06F 11/16-11/20 H04B 1/74 H04L 1/00 H04M 3 / 00 H04M 3/08-3/14 H04L 11/00 H04L 13/00

Claims (2)

(57) [Claims] 1. A plurality of types of processing panels to adopt a redundant configuration is connected to the entangling to serially through a communication channel, the secondary run the data processing by going passes the communication data <br/> In the redundant configuration data processing system, each processing panel detects occurrence of a fault condition in its own processing panel.
Communication between the first detecting means for issuing and the preceding processing panel
Second detection means for detecting the occurrence of a road fault condition.
In addition, each processing panel is added to the transferred communication data.
The recording location of the failure information for each
Are prepared adjacent to each other and in the order in which the processing panels are arranged.
And the first and second detecting means are configured to generate a fault condition.
When detecting the above, the above
A redundant configuration data processing system , characterized by setting failure information at a recording position . 2. The duplicated configuration data according to claim 1.
In the processing system, the second detecting means may be connected to a failure-occurring communication path.
On the communication data prepared in association with the step processing panel
The failure information is set at the recording position, and the first detection means is set.
Is associated with the own processing panel and the paired processing panel.
Failure information is set at the above recording position on the prepared communication data.
Dual configuration data processing system to a constant, characterized.