JP3039125B2 - Information processing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used for an apparatus for checking the consistency of an inter-job communication file of an information processing apparatus. In particular, the present invention relates to an inter-job communication file consistency checking apparatus for inter-job communication at the time of system startup of an information processing apparatus.

[0002]

2. Description of the Related Art Conventionally, an information processing apparatus cannot know that data in an inter-job communication file is not consistent with data in a memory, and the information processing apparatus is started to operate in an inconsistent state. There was something.

The operation of the data in the inter-job communication file cannot be guaranteed unless the data is consistent with the management data in the memory. Therefore, as a method of storing the management data in the memory even after the system is stopped, the data is stored in the inter-ISL information transfer file at the time of system shutdown, and is stored in the backing store file at the time of system crash. If it is after the shutdown, it is extracted from the inter-ISL information transfer file and associated with the data of the inter-job communication file. If the operation is resumed after a system crash, the operation is taken out of the backing store file and associated with the data in the inter-job communication file. However, if the secondary storage device storing the inter-ISL information takeover file and the backing store file becomes unavailable due to a failure or the like, the information processing device user stores the secondary storage device in advance on a magnetic tape or the like. There is a possibility that replacement will be performed with the contents of the next storage device. In such a case, the data in the inter-job communication file and the IS
Correspondence with the data in the inter-L information transfer file or the backing store file cannot be taken. Conventionally, in such a case, since the inconsistency could not be detected, the operation of the information processing apparatus was started in an inconsistent state, and a system crash sometimes occurred.

[0004]

However, such a conventional information processing apparatus cannot operate because the inconsistency between the data of the inter-job communication file and the management data in the memory cannot be detected. There was a problem that a malfunction occurred after the start of the system, resulting in a system crash. Further, when a system crash occurs due to inconsistency in the inter-job communication file, there is a problem that the operation of the information processing apparatus cannot be resumed without re-creating the inter-job communication file in another information processing apparatus. Was.

The present invention solves the above problems,
At the time of system startup, the consistency between the data of the inter-job communication file and the management data on the memory can be compared and inspected.
An object of the present invention is to provide an information processing apparatus that can prevent a system crash even when an inconsistency occurs.

[0006]

According to the present invention, there is provided a time stamp including communication data between jobs and a date and time when a system is stopped.
The first file in which the records are stored, and the data containing the management data and date and time in the memory at the time of system shutdown
A second file where imstamp records are stored;
An information processing apparatus comprising: a management file on a memory by virtual memory management at the time of system crash; and a third file storing a time stamp record including a date and time . Storage means for storing a time stamp record including the date and time in the file, and the contents of the first file and the second file are respectively taken out at system startup after system shutdown, and the first file is taken at system startup after system crash. And the storage and retrieval means including a retrieval means for extracting the contents of the file and the third file, and comparing the time stamp records retrieved from the first file and the second file at the time of system startup after the system shutdown, respectively. Compare and check the integrity of the content,
The first file you <br/> spare the third compares the timestamp records retrieved from a file matching comparison inspection means for comparing check the integrity of their contents when rising system after system crashes And notifying means for outputting inconsistency information based on the inconsistency result of the consistency comparing and inspecting means, and first stopping means for stopping the system based on the inconsistency information of the notifying means. I do.

Further, according to the present invention, instead of the first stopping means, a first stop control signal is output based on an input stop request and a first initialization control signal is output based on an input initialization request. , An operator action determining means for outputting a first stop control signal, a second stop means for performing a system stop based on the first stop control signal, and a first means for performing the first file initialization processing based on the initialization processing control signal. Initialization processing means can be provided.

Further, according to the present invention, instead of the first stop means, a second stop control signal is output when the stop mode is set based on the mismatch information of the notifying means, and the second stop control signal is output when the initialization processing mode is set. Automatic processing determining means for outputting an initialization processing control signal, third stopping means for performing system shutdown based on the second stop control signal, and initialization of the first file based on the second initialization processing control signal Second initialization processing means for performing the initialization processing.

[0009]

The storage and retrieval means stores the time stamp record including the date and time in the first file and the second file at the time of system shutdown by the storage means, and stores the first file and the first file at the time of system startup after the system shutdown by the extraction means. The contents of the second file are extracted, and the contents of the first file and the third file are extracted at the time of system startup after the system crash. The consistency comparison inspection means compares and inspects the consistency of the respective contents extracted by the extraction means at the time of starting each system. The notifying unit notifies the operator of the inconsistency information based on the inconsistency result of the inconsistency checking unit. The first stopping means stops the system based on the inconsistency information of the notifying means.

As described above, the consistency between the data of the inter-job communication file and the management data on the memory can be compared and inspected at the time of system startup, and even if an inconsistency occurs, a system crash can be prevented.

[0011]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of the information processing apparatus according to the first embodiment of the present invention.

In FIG. 1, the information processing apparatus stores an inter-job communication file 2 as a first file for storing inter-job communication data when the information processing apparatus is stopped, and management data at the time of system shutdown. An inter-ISL information transfer file 3 is provided as a second file, and a backing store file 4 is provided as a third file in which management data at the time of a system crash is stored.

The feature of the present invention is that the inter-job communication file 2 and the ISL
Storage means 11 as well as the system of each extraction system after a crash the contents between jobs communication file 2 and ISL intercellular handover file 3 at the rising edge system after system shutdown storing timestamp record containing a date time between information takeover file 3 Inter-job communication file 2 at startup
And a storage / extraction unit 1 including an extraction unit 12 for extracting the contents of the backing store file 4 and a system shutdown unit 5 for comparing and checking the consistency of the contents extracted by the extraction unit 12 at each system startup. the time stamp consistent comparison inspection means for comparing check the consistency of the record 5 ₁ and system integrity comparison inspection means for comparing check the integrity of the time stamp record after a crash 5 ₂ after consistency comparison inspection unit 5 ₁ notification means 6 for outputting the mismatch information 101 based on 5 ₂ mismatch results
And a stopping means 7 as a first stopping means for stopping the system based on the inconsistency information 101 of the notifying means 6.

The operation of the information processing apparatus having such a configuration will be described. FIG. 2 is a flowchart showing the operation of the information processing apparatus according to the first embodiment of the present invention.

In FIG. 1 and FIG.
Performs a process of storing a time stamp record in the inter-job communication file 2, the inter-ISL information transfer file 3, and a process of extracting contents from the inter-job communication file 2, the inter-ISL information transfer file 3, and the backing store file 4.

In the case of the start-up processing after the system shutdown, the storage / extracting means 1 stores the inter-job communication file 2 and the ISL
Taken out timestamp records the information during takeover file 3, comparing test Consistency comparison inspection unit 5 _1. The time stamp of the inter-job communication file 2 and the I
If the time stamp of the inter-SL information transfer file 3 matches, the information processing apparatus continues the subsequent start-up processing. If it is an inconsistency result, the notifying means 6
A message to the effect that the inconsistency was detected and the contents of the time stamp record stored in each file are output and notified on the console. This message allows the operator to know that an inconsistency has occurred and to know the date and time when each file was initialized, so that a correct file can be distinguished from an incorrect file. Then, after the system is stopped by the stopping means 7, the operator performs a file recovery operation and restarts the system.

[0017] If in the case of the start-up process after the system crash, storing retriever 1 takes out the time stamp records the time stamps between jobs communication file 2 and the backing store file 4 consistency comparison inspection unit 5 ₂ Perform comparative inspection.

Here, the reason why the files for which the time stamps are compared and inspected after the system shutdown and after the system crash are different will be described. First, when performing the system shutdown processing, the storage and retrieval unit 1 can store the time stamp record in the inter-ISL information transfer file 3 together with the management data on the memory. However, at the time of a system crash, the storage / extracting means 1 cannot operate. Therefore, when the system is restarted after the system crash, the management data and the time stamp record on the memory do not exist in the inter-ISL information transfer file 3. Therefore, the information transfer file 3 between ISLs cannot be used at the time of restarting after the system crash.

At this time, since the management data and the time stamp record in the memory at the time of the system crash are stored in the backing store file 4 by the virtual memory management, the backing store file 4 is required when the system is restarted after the system crash. Can be used.

Further, not only the management data on the memory but also all the control information for using the inter-job communication function are stored in the inter-ISL information transfer file 3 and restored on the memory at the time of restart. be able to.

However, in the case of the backing store file 4, since only the management data on the memory is stored, the management data on the memory extracted from the backing store file 4 and the job are not stored when the system is restarted after a system crash. The control information of the inter-job communication function must be recreated from the data of the communication file 2.

For these reasons, the files for comparing and checking the consistency of the time stamp records are different after the shutdown and after the system crash.

FIG. 3 is a block diagram of an information processing apparatus according to a second embodiment of the present invention. FIG. 4 is a flowchart showing the operation of the information processing apparatus according to the second embodiment of the present invention.

In FIG. 3, reference numeral 7A denotes stop means, 8A denotes initialization processing means, 9 denotes operator treatment determination means, 102A denotes a stop control signal, and 103A denotes an initialization control signal. 1 and 2 show the case where the system is stopped at the time of inconsistency, and the operator re-creates the inter-job communication file 2 with another information processing apparatus. FIG. 3 and FIG. To notify the operator of the inconsistency, and the operator activates the stopping means 7A in the operator action determining means 9 to stop the system, or activates the system initialization processing means 8A to stop the system and to execute the inter-job communication file without stopping. 2 can be recreated.

FIG. 5 is a block diagram of an information processing apparatus according to a third embodiment of the present invention. FIG. 6 is a flowchart showing the operation of the information processing apparatus according to the third embodiment of the present invention.

In FIG. 5, 7B is a stop means, 8B is an initialization processing means, 10 is an automatic treatment determination means, 102B is a stop control signal, and 103B is an initialization processing control signal. FIGS. 5 and 6 show that the automatic action determination means 10 sets a stop mode or an initialization processing mode in advance without automatically determining a treatment by the operator at the time of inconsistency. It is possible to determine whether to perform the system stop or the initialization process, and to perform the system stop by the stop unit 7B, or to perform the initialization process of the inter-job communication file 2 by the initialization unit 8B.

[0027]

As described above, according to the present invention, the consistency between the data of the inter-job communication file and the management data in the memory can be compared and checked at the time of system startup. There is an excellent effect that can prevent a crash.

[Brief description of the drawings]

FIG. 1 is a block diagram of an information processing apparatus according to a first embodiment of the present invention.

FIG. 2 is a flowchart showing the operation of the information processing apparatus according to the first embodiment of the present invention.

FIG. 3 is a block diagram of an information processing apparatus according to a second embodiment of the present invention;

FIG. 4 is a flowchart showing the operation of the information processing apparatus according to the second embodiment of the present invention;

FIG. 5 is a block diagram of an information processing apparatus according to a third embodiment of the present invention.

FIG. 6 is a flowchart showing the operation of the information processing apparatus according to the third embodiment of the present invention.

[Explanation of symbols]

1 storage retriever 2 between between jobs communication file 3 ISL information takeover file 4 backing store file 5 _1, 5 ₂ Consistency comparison inspection unit 6 notifying unit 7, 7A, 7B stop means 8A, 8B initialization processing means 9 operator action Determination means 10 Automatic treatment determination means 11 Storage means 12 Extraction means 101 Mismatch information 102A, 102B Stop control signal 103A, 103B Initialization processing control signal

Claims (3)

(57) [Claims] 1. Job inter-job communication data and date at system shutdown
A first file in which a timestamp record including an attached time is stored, a second file in which a timestamp record including management data and date and time in a memory at the time of system shutdown is stored, and a virtual memory at the time of system crash
An information processing apparatus comprising: a management file on a memory by management and a third file in which a time stamp record including a date and time is stored. When the system is shut down, the date and time are stored in the first file and the second file. Storage means for storing a time stamp record including the contents of the first file and the second file at the time of system startup after system shutdown, respectively taking out the contents of the first file and the third file at system startup after system crash The storage / extraction means including the extraction means for extracting the contents of the file and the time stamp records extracted from the first file and the second file at the time of system startup after system shutdown are compared, and the consistency of the respective contents is compared. Inspect the first And Integrity comparison inspection means for comparing check the integrity of their contents by comparing the timestamp records retrieved from a file you and the third file, not based on the mismatch result of this consistency comparison inspection means An information processing apparatus comprising: a notifying unit that outputs matching information; and a first stopping unit that stops a system based on the mismatch information of the notifying unit. 2. An operation of outputting a first stop control signal based on an input stop request and outputting a first initialization control signal based on an input initialization request instead of the first stop means. Means for determining operator action, second stopping means for performing a system stop based on the first stop control signal, and first initialization processing means for performing the initialization processing of the first file based on the initialization processing control signal The information processing apparatus according to claim 1, further comprising: 3. A second stop control signal is output when the stop mode is set based on the inconsistency information of the notifying means, and the second initialization control is performed when the initialization processing mode is set, instead of the first stop means. Automatic action determination means for outputting a signal,
A third stop means for stopping the system based on the second stop control signal; and a second initialization processing means for performing an initialization processing of the first file based on the second initialization processing control signal. The information processing apparatus according to claim 1.