JPH0844610A - Distributed processing system - Google Patents

Abstract

PURPOSE:To provide the distributed processing system with which the time for saving in the case of file saving or the time for restoring in the case of file recovering can be shortened and operations can be simplified. CONSTITUTION:The system managing terminal of the distributed processing system is provided with a means 11 for preparing a schedule to save a filing system stored in each magnetic disk storage device connected by a file server and a backup processing means 12 for saving the filing system in a backup device 5 according to the schedule. Further, this terminal is provided with a means for restoring the filing system, which is saved in the backup device 5, in a magnetic disk device provided at the file server based on restore information at the time of restoring and a medium managing means 13 for managing the storage medium and restore information of the backup device 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to file saving in a distributed processing system, and more particularly to a distributed processing system that saves and restores file server files collectively at a system management terminal.

[0002]

2. Description of the Related Art In order to recover a file failure due to an accident such as a failure of a magnetic disk storage device, an erroneous operation by an operator, or a data error, a file server file is used as a storage medium of a backup storage device. It is necessary for system operation to save regularly and prepare for file failure.

Conventionally, in a distributed processing system, each file is saved in a backup storage device provided for each file server as a work required for system operation by a system operator or a system administrator.

In Japanese Patent Laid-Open No. 2-297643, a file management unit and a command management unit are provided in both the workstation and the backup server connected to the communication line network, and the backup target file of the workstation is transferred from the backup server. A file management method is disclosed in which a backup storage device is remotely accessed, transferred to a backup storage device, saved, and centrally managed for the backup storage device.

[0005]

When a file is saved in the backup storage device for each of the conventional file servers described above, the work load on the system operator or system administrator is heavy, and the file save work is managed centrally. Can not do it. When centrally managing with a backup server, both the backup server and the workstation have a file management unit that saves files and a command management unit that transfers data. Therefore, both the files to be saved and the files to be restored must be managed. become.

[0006]

An object of the present invention is to automatically save a file to be saved in a backup storage device at a time designated by a system operation schedule based on a file server information file prepared in advance. Thus, the load of saving work is reduced, and the save time of a file or the restore time at the time of file restoration is shortened to simplify the operation.

Therefore, the present invention is directed to a high-speed communication line network, a plurality of clients and a plurality of file servers connected to the high-speed communication line network, a system management terminal for managing the operating conditions of the clients and file servers and the high-speed communication line network, In the distributed processing system, the system management terminal includes a storage unit including a storage medium for saving a file system stored in a magnetic disk storage device connected to each of the file servers for backup, and the file system. Means for creating a schedule for saving in the storage medium of the storage means based on a file server information file; means for performing backup processing for saving the file system in the storage medium of the storage means according to the schedule; A file management system that manages restore information that associates a storage medium of a storage unit that saves a file system with a restore destination of the file system, and a file system saved in the storage medium of the storage unit as the restore information. Means for restoring to the magnetic disk device of the file server based on the above.

[0008]

Next, the present invention will be described with reference to the drawings.

Referring to FIG. 1 showing the configuration of an embodiment of the present invention, a distributed processing system 1 includes a plurality of clients 2 and a plurality of magnetic disk storage devices 3 for storing files processed by the clients 2. A system management terminal 6 that connects the file server 4 and the backup device 5 that manages the operation of the distributed processing system 1 and saves backup files, and a high-speed communication line that connects the client 2, the file server 4, and the system management terminal 6 And a network 7.

Further, referring to FIG. 2 showing the configuration of the file save function of the system management terminal 6, the system management terminal 6 refers to the file server information file 10 and the device name file 15, and the backup schedule 16
Managing the storage medium storing the saved files and the backup processing unit 12 that performs file save from the magnetic disk storage device 3 of the file server 4 by time activation based on the backup schedule 16. Media management unit 13
And retains the restore information 17 at the time of file failure recovery,
A restore processing unit 14 that restores the file system indicating the saved file group from the backup device 5 to the magnetic disk storage device 3 of the file server 4.
And, including.

Furthermore, the file server information file 1
0 includes a file server name 101 that identifies the file server 4 and a file system name 102 that points to a file group stored by the file server 4, and the device name file 15 Is
As shown in the example of FIG. 4, the system management terminal 6
5, the file save schedule 16 has a file system name 161, which is to be saved, a backup device name 162, which is to be saved, and a file storing the file system. The restore information 17 includes a server name 163 and a save order 164 indicating the order in which the file system is saved. The restore information 17 has a storage medium name 171 in which the file system is saved, as illustrated in FIG. The file system name 172 thereof, the file server name 173 for restoring the file system,
And a magnetic disk storage device name 174 that each file server 4 has.

The file save operation of this embodiment is shown in FIG.
Referring to FIG. 3 and FIG. 6 exemplifying files and information necessary for executing file save, the backup scheduler unit 11 operates the system of the distributed processing system 1 held by the system management terminal 6. Based on a schedule (not shown), the file system of the file server 4 is saved by the file server name 101 of the file server information file 10, the file system name 102 of the backup target, and the backup device name 151 of the device name file 15. A file save schedule 16 for the current day indicating the backup device 5 of the save destination and the save order is created. The backup processing unit 12 is in a waiting state until it is time-activated by the system operation schedule of the system management terminal 6. When the backup processing unit 12 is time-activated by the system operation schedule, the file name 161 of the file system of the file server 4 is saved in the assigned storage medium of the backup device 5 according to the file save schedule 16. At the time of executing the file save, the tape number, the save execution date, and the backed up file system name 161 are written in the header of the storage medium. Further, the backup processing unit 12 determines the number of times the storage medium has been used and whether the save file is a writable storage medium based on the tape number. ,
Alternatively, it prevents an error in overwriting the saved storage medium.

Further, when recovering from a file failure, the system manager or system operator activates the restore processing section 14, and the restore information 17 regarding the file system to be recovered is visualized and displayed on the system management terminal. The system operator or the system administrator has the file system name 172 and the saved storage medium number 1
The magnetic disk storage device name 174 and the file server name 173 to be restored are selected from 71, the file system is restored from the storage medium 5 to the magnetic disk storage device 3, and the faulty file is restored. File save or file restore can be centrally managed and executed by the system management terminal described above.

[0014]

As described above, according to the present invention, information necessary for automatic operation of file save and file restore is created in advance in the system management terminal that centrally manages the distributed processing system, and the system is According to the operation schedule, the backup processing unit is activated for a time to save the file, so that the system administrator or the system operator can save the time required for the file save by performing only the tape exchange work.

According to the present invention, the storage medium for saving files is centrally managed by the system management terminal, and the file system name saved in the header of the storage medium is visualized and displayed, so that the file can be restored at the time of file restoration. It is possible to prevent erroneous operations by mistakenly using different storage media, and to quickly restore files.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an embodiment of the present invention.

FIG. 2 is a diagram showing a configuration of a file save function of the system management terminal in FIG.

FIG. 3 is a diagram showing an example of a file server information file in FIG.

FIG. 4 is a diagram illustrating an example of a device name file in FIG.

5 is a diagram illustrating a file save schedule in FIG. 1. FIG.

FIG. 6 is a diagram showing an example of restore information in FIG.

[Explanation of symbols]

 1 distributed processing system 2 client 3 magnetic disk storage device 4 file server 5 backup device 6 system management terminal 7 high-speed communication line network

Claims (4)

[Claims] 1. A distributed process comprising a high-speed communication line network, a plurality of clients and a plurality of file servers connected to the high-speed communication line network, and a system management terminal that manages the operating status of the clients and the file servers and the high-speed communication line network. A system, wherein the system management terminal includes a storage unit including a storage medium for saving a file system stored in a magnetic disk storage device connected to each of the file servers for backup, and the file system of the storage unit. Means for creating a schedule for saving in a storage medium based on a file server information file; means for performing backup processing for saving the file system in the storage medium of the storage means according to the schedule; Based on the restore information, a medium management unit that manages restore information that associates a storage medium of the storage unit that is being saved with a restore destination of the file system, and a file system saved in the storage medium of the storage unit based on the restore information. A distributed processing system comprising: means for restoring to a magnetic disk device of a file server. 2. The schedule includes a name for identifying the file server, a name for identifying a file system, an order for saving the file system, and a name for identifying a storage medium for saving the file system. The distributed processing system according to claim 1. 3. The file server information file is characterized in that a name for identifying the file server and a name of a file system indicating a file group held by the file server are registered in association with each other. 1. The distributed processing system according to 1. 4. The restore information includes a name of the storage medium in which the file system is saved, a name of a restore destination file server for restoring the file system, and a name of a magnetic disk storage device. The distributed processing system according to claim 1, which is characterized in that.