JP2006178801A - System changeover test system for duplex system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a duplex system allowing a changeover confirmation test for the duplex system by a single information processor. <P>SOLUTION: This system changeover test system for the duplex system having an active-system and a standby-system information processor has: a testing communication adapter different from a communication adapter performing communication in time of normal changeover generation inside the single information processor; and a system changeover control means performing the active-system or the standby-system changeover communication processing in a pseudo manner through the testing communication adapter. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a system switching test method for a duplex system including an active system and a standby information processing apparatus, and more particularly to a test system that enables a system switching test for a duplex system with one information processing apparatus.

  Conventionally, in a system switching test of a duplex system, as shown in FIG. 2, two information processing apparatuses 1 and 2 are connected via a communication line 3, and the test is actually performed with a duplex system configuration. .

When the system switching test program 10 on the active information processing apparatus 1 generates a pseudo fault, the standby information processing apparatus 2 that detects the occurrence of the fault switches the own apparatus from the standby system to the active system, A disconnection instruction is issued from the communication control unit 21 to the information processing apparatus 1 via the communication line 3, and the information processing apparatus 1 performs a system switching test by starting up as a standby system after turning off / on its own power supply. It was. A system switching test method for such a duplex system is disclosed in, for example, Japanese Patent Laid-Open No. 2000-57108.
JP 2000-57108 A

  In the system switching test method of the conventional duplex system described above, it is necessary to prepare two information processing apparatuses. For example, an additional information processing apparatus is connected to the information processing apparatus that is currently in operation, and then duplexed. When constructing a system, the shipping inspection of information processing apparatuses is performed for each unit, so that it is necessary to prepare another information processing apparatus as a test jig.

  In addition, when a system switching test is performed after repairing an information processing device that has failed during operation, the information processing device that is in operation (active system) cannot be stopped. It was difficult to test.

  Further, in the conventional test method, two information processing apparatuses are necessary for testing the duplex system, and therefore it is necessary to prepare another information processing apparatus for the jig. In addition, when a failure occurs in the information processing apparatus after shipment and an inspection after repair is performed, it is difficult to perform a switching confirmation test of the duplex system because the system operating in the operation system cannot be stopped.

  An object of the present invention is to realize a switching confirmation test of a duplex system with a simple configuration.

  A communication adapter for testing is provided in the information processing apparatus separately from the communication adapter that performs communication at the time of normal switching, and system switching control means is provided for performing a switching process of the active system or standby system in a pseudo manner through the communication adapter for testing. And means for generating simulated fault processing and means for storing data to be transmitted to the partner apparatus in the table when a fault occurs and transmitting the pseudo data via the test communication adapter.

  It becomes possible to easily perform the switching test of the duplex system with one information processing apparatus.

  Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.

  FIG. 1 is a block diagram showing an example of the present invention. The duplex system in FIG. 1 includes a control program 101 that executes a system switching test of the duplex system, a pseudo failure processing program 102 that causes the information processing apparatus 1 to execute a process when a pseudo failure occurs, and a system switching process. A dual system control program 103 to be executed, a communication adapter control unit 11 for controlling a communication adapter used for intersystem communication, a pseudo dual system control program 104 for simulating the operation of another system, and other virtually on intersystem communication A communication adapter control unit 12 that controls a communication adapter that is a system, an active / standby system state flag 105 that indicates whether the information processing apparatus 1 is an active system or a standby system, and transmission / reception at the time of system switching The transmission / reception data storage table 106 stores data.

  Next, the operation in the test method of the present invention will be described with reference to the block diagram of FIG. 1 and the flowchart of FIG.

  When the information processing apparatus 1 starts up, control is transferred to the control program 101, and a test start instruction is waited at step 30. The operator selects a test from the simulated fault processing program 102, sets whether or not to start a continuous test, instructs the start of the test, and reads the test conditions in step 31. In step 32, the control program 101 determines whether the test selected from the simulated fault processing program 102 is an active test or a standby test, and sets the active / standby status flag 105.

  First, we will explain the case where the operational test is selected. If the test selected from the simulated fault processing program 102 in step 31 is an active test, the control program 101 causes the simulated dual system control program 104 to put the communication adapter control unit 12 in the reception state. When the communication adapter control unit 6 enters the communication state, the simulated fault processing program 102 selected in step 40 is started to start processing when the information processing apparatus 1 has a fault. When the simulated fault process is activated, the dual system control program 3 that has detected the fault transmits the system switching information via the communication adapter control unit 5 in step 41. When the pseudo duplex control program 104 that has received the data transmitted from the duplex control program 103 in step 42 detects matching received data from the transmission / reception data storage table 106, the corresponding transmission data is transmitted in step 41. . When the transmission / reception of the switching information is normally completed by repeating step 41 and step 42 and the end of the system switching is detected, the control program 101 sets a test end mark in the target item of the transmission / reception data storage table 106.

  Next, explanation will be given when the standby system test is selected. When the standby system test is selected, the control program 101 sets the active system / standby system state flag 105 to the standby system. Thereafter, the control program 101 instructs the pseudo duplex system control program 104 to perform a standby system test. In step 31, the pseudo-duplex system control program 104 selects an unexecuted test item from the transmission / reception data storage table 106, and transmits transmission data via the communication adapter control unit 4 in step 34. When the dual system control program 103 receives the data in step 35, the system switching process is repeated by repeating steps 34 and 35 to switch the own system to the active system. Thereafter, in step 37, the active / standby system status flag 105 is set to the active system.

  Next, the case where the continuous test is selected will be described. When the control program 101 recognizes that it is a continuous test instruction in step 38, it returns to step 31 and starts the next test. Each time the control program 101 is executed, the active / standby system state flag 105 is switched to the active system or the standby system, so that continuous testing of the active system / standby system is possible.

  Note that the communication adapter 12 may be mounted exclusively for testing, but a communication adapter that is duplicated with the communication adapter 11 may be used for improving reliability.

  As described above, in a dual system, by adding a communication adapter and performing pseudo-active or standby processing, a system switching test between the active and standby systems can be performed with a single information processing device. .

Provide another set of communication adapters in addition to the communication adapter that communicates at the time of normal switching in one information processing apparatus, and have means for performing pseudo switching processing of the active system or standby system via the communication adapter Thus, it becomes possible to easily perform the switching test of the duplex system with one information processing apparatus.
In addition, by having means for generating a pseudo failure and means for transmitting pseudo data via a communication adapter in which data to be transmitted to a partner device is created and added in the event of a fault, Enables switching tests in failure cases.

  In the redundant system, the system switching test of the redundant system can be performed with one system at the time of shipment or maintenance or inspection after shipment. Further, during maintenance, a failure occurs in the redundant system, and the operation system is operated by the inspection after replacement of the failed part, and the system switching test can be performed only by the separated standby system.

The embodiment described above can be understood as follows.
(1) In a system switching test method of a duplex system having an active system and a standby system information processing apparatus, a communication adapter that performs inter-system communication when switching occurs in one information processing apparatus, and the communication adapter are separate And a system switching control means for performing a switching communication process for the active system or the standby system in a pseudo manner via the test communication adapter. One information processing apparatus having a means for generating and means for storing data to be transmitted to a partner apparatus when a failure occurs in a table and performing transmission / reception via a test communication adapter System switching test system for duplex system, characterized by

  (2) In addition to (1), when the test is performed continuously, the system is operated by having an operation system / standby system state flag indicating that the state of the information processing apparatus has become a standby system after execution of the operation system test. A system switching test system with a duplex system that can test while automatically switching between the system and standby system.

It is a block diagram in the information processing apparatus which shows one embodiment. It is a block diagram which shows the conventional duplex system switching test. It is a flowchart which shows the process of one Embodiment.

Explanation of symbols

1, 2, information processing device, 3, 4 communication line, 10, 20 system switching test program, 11, 12, 21 communication adapter control unit, 30-38, 40-44 program steps, 101 system switching test control program, 102 pseudo fault processing program, 103 dual system control program, 104 pseudo dual system control program, 105 active / standby system status flag, 106 transmission / reception data storage table

Claims (1)

In a system switching test system for a redundant system having an information processing device for the active system and the standby system,
A communication adapter for performing communication between systems when switching occurs in one information processing apparatus;
A test communication adapter having a configuration separate from the communication adapter;
System switching control means for performing pseudo switching communication processing of the active system or the standby system via the test communication adapter,
Characterized in that it has means for generating pseudo-fault processing, and system switching control means having means for storing data to be transmitted to the partner device when a fault occurs in a table and performing transmission / reception via the test communication adapter. Redundant system switching test system.

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