JPH05342074A - Information storage device - Google Patents

Abstract

PURPOSE:To automatically perform the batch update of a catalog file by collating file storage information in a disk volume with file storage destination information in the catalog file. CONSTITUTION:When the file is moved from the other disk volume to a disk volume 1, a working means 4 extracts the file storage information of the disk volume 1 designated by a disk instructing means 3 as one record per file. Next, catalog information is extracted from a catalog file 2 with that file name as a key. When there is any relevant catalog information, the registered disk volume information is collated between these two kinds of information and when the information is not coincident, it is worked into a file updating instruction. When there is no relevant catalog information, it is worked into a catalog file registering instruction and written in a change instruction preservation file 5. A change instruction executing means 6 reads a catalog file changing instruction from the change instruction preservation file 5 and executes it.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to means for collectively changing a file catalog when a file is transferred to another disk volume for each disk volume.

[0002]

2. Description of the Related Art In the conventional example, the transfer destination information is managed immediately after the file is transferred to another disk volume, and a catalog file change instruction is created for each manually transferred file.

[0003]

In such a conventional example, since the catalog information is updated one after another, an update omission may occur at the time of batch update of the catalog file which is necessary when the entire disk volume is transferred to another disk volume. However, there was a drawback that management became complicated.

The present invention eliminates such drawbacks, and an object of the present invention is to provide an information storage device capable of automatically updating a batch of catalog files.

[0005]

SUMMARY OF THE INVENTION The present invention is directed to a plurality of disk volumes that store files and have file storage information, and file storage that is updated when files are migrated from one disk volume to another disk volume. In an information storage device provided with a catalog file having prior information, the file storage information on the designated disk volume is extracted as one record for each file, and then the file on the above catalog file is used with that file name as a key. The storage location information is searched, and if there is file storage location information in the catalog file, the file storage information on the disk volume is compared with the file storage location information on the catalog file, and these two pieces of information match. The file extracted from the above disk volume when not A command is added to the stored information to generate a catalog update instruction. On the other hand, if there is no file storage destination information in the catalog file, a command is added to the file storage information extracted from the disk volume to register the catalog file. It is characterized by comprising a processing means for generating an instruction and an updating means for updating the file storage destination information on the catalog file based on the catalog update instruction and the catalog registration instruction generated by the processing means.

[0006]

Operation: The file storage information in the disk volume and the file storage destination information in the catalog file are collated to collectively update and newly register. The file storage information is read from the instructed disk volume and the file storage destination information is read from the catalog file, and a catalog file change instruction is generated. The file storage destination information of the catalog file 2 is updated according to this catalog file change instruction.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram of this embodiment. In this embodiment, a disk volume 1 for storing various files and a catalog file 2 having file storage destination information.
Then, the disk instructing means 3 for instructing the target disk volume, and the file storing information from the disk volume 1 and the file storing destination information from the catalog file 2 are read based on the instruction from the disk instructing means 3 and processed into a catalog file change instruction. The processing unit 4 and the update unit 10 include a change instruction storage file 5 for storing the catalog file change instruction and a change instruction executing unit 6 for updating the catalog file 2 according to the catalog file change instruction. That is, as shown in FIG. 1, this embodiment is updated when a plurality of disk volumes 1 storing files and having the file storage information and files are migrated from one disk volume to another disk volume. A catalog file 2 having file storage destination information is further provided. Further, as a feature of the present invention, the file storage information on the disk volume 1 designated by the disk designating means 3 is extracted as one record for each file, Next, using the file name as a key, the file storage destination information in the catalog file 2 is searched. If the file storage destination information exists in the catalog file 2, the file storage information in the disk volume 1 and the catalog file 2 are searched. The file storage destination information of is compared, and if these two information do not match, the Disk volume 1
A command is added to the file storage information extracted from to generate a catalog update instruction. On the other hand, if no file storage destination information exists in the catalog file 2, the command is added to the file storage information extracted from the disk volume 1. And a updating means 10 for updating the file storage destination information on the catalog file 2 based on the catalog update instruction and the catalog registration instruction generated by the processing means 4. Prepare Here, the update means 10 includes a change instruction storage file 5 for storing a catalog update instruction and a catalog registration instruction, and a change instruction execution means 6 for reading the contents of the change instruction storage file 5 and writing it in the catalog file 2.

Next, the updating operation of this embodiment will be described.
When the file is transferred from another disk volume to the disk volume 1, the control is transferred to the processing means 4. In the processing means 4, the file storage information of the disk volume 1 designated by the disk designating means 3 is set to 1 for each file.
It is extracted as a record, and then the catalog information is extracted from the catalog file 2 using the file name as a key. If there is corresponding catalog information, check the registered disk volume information in these two information,
If they do not match, a command is added to the information extracted from the disk volume 1 and processed so as to give an instruction to update the catalog file. If they match, nothing is done. If there is no corresponding catalog information, a command is added to the information extracted from the disk volume 1 to process it so as to give a catalog file registration instruction. Then, the update or new registration instruction as the processing result is written in the change instruction saving file 5.
Finally, the change instruction execution means 6 uses the change instruction save file 5
Read the catalog file change instruction from and execute. Thereby, the file storage information of the disk volume 1 and the file storage destination information of the catalog file 2 can be synchronized.

[0009]

As described above, according to the present invention, the file storage information of the catalog file is collectively updated or newly registered after checking the file storage information in the disk volume and the file storage destination information of the catalog file. Therefore, there is an effect of reducing omission of modification and omission of registration of the file storage information of the catalog file. Further, since the catalog file can be updated automatically, there is an effect that the complexity of managing the catalog file is reduced.

[Brief description of drawings]

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

[Explanation of symbols]

 1 Disk Volume 2 Catalog File 3 Disk Instruction Means 4 Processing Means 5 Change Instruction Save File 6 Change Instruction Execution Means 10 Update Means

Claims (1)

[Claims] 1. A plurality of disk volumes that store files and have the file storage information, and a catalog file that has file storage destination information that is updated when files are migrated from one disk volume to another disk volume. In the provided information storage device, the file storage information on the specified disk volume is extracted as one record for each file, and then the file storage destination information on the catalog file is searched using the file name as a key, and When the file storage destination information exists in the catalog file, the file storage information on the disk volume is collated with the file storage destination information on the catalog file, and when the two information do not match, it is extracted from the disk volume. Command to the stored file information To generate a catalog update instruction, and when the file storage destination information does not exist in the catalog file, adds a command to the file storage information extracted from the disk volume to generate a catalog file registration instruction. And an updating means for updating the file storage destination information on the catalog file based on the catalog update instruction and the catalog registration instruction generated by the processing means.