JPH05250237A - Magneto-optical disk library device - Google Patents

Abstract

PURPOSE:To efficiently and quickly perform the processing by quickly checking an allowable capacity for write and a readable or executable file name. CONSTITUTION:When a host computer device 1 is started, file management information of all of mediums (magnetic disk) 25 and 26 existing in a magneto- optical disk library device (filing device) 22 are read by a file management information read/write part 16, and a file management information storage part 17 is updated. Files designated by a user, files having a high frequency in use, files having a high frequency in read/write, recent files, or the like are written in a recording medium (filing device) 21 by a file read/write device 19. The file management information storage part 17 is updated by file management information read/write part 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a file device, for example, a filing device for storing and storing information in a magneto-optical disk.

[0002]

2. Description of the Related Art There is a magneto-optical disk library device as a device for efficiently utilizing and storing a large amount of information. In this magneto-optical disk library device, various information is stored in a file, and a magneto-optical hand disk (media) containing a predetermined file is inserted into a drive from a storage shelf so that information can be read or written. Is becoming When writing a file created by a terminal device to a medium existing inside the magneto-optical disk library device, an autochanger mechanism is generally used. If another medium has already been inserted into the magneto-optical disk drive, the file is written by returning this medium to the predetermined storage rack by the autochanger mechanism and then inserting the required medium into the magneto-optical disk drive. Also when reading, the required medium is inserted into the magneto-optical disk drive in the same manner as the writing operation, and reading is performed.

[0003]

However, in the conventional magneto-optical disk library device, when the designated file exists over a plurality of media, it is necessary to repeat the operation a plurality of times. That is, insert the media containing the specified file from the storage shelf into the drive,
It was necessary to repeat the operation of reading or writing, returning to the storage shelf, inserting a medium containing another specified file into the drive from the storage shelf, and reading or writing. For this reason, conventionally, no matter how good the magneto-optical disk library apparatus is, it takes a long time to move the medium from the shelf to the drive or from the drive to the shelf.

Therefore, a first object of the present invention is to detect a writable capacity, a readable or executable file name promptly, and to perform an efficient and quick processing. To provide a library device. A second object of the present invention is to provide a magneto-optical disk library device which can reduce the number of times the magneto-optical disk is inserted into and taken out of a drive, and can perform processing efficiently and promptly.

[0005]

According to a first aspect of the present invention, there is provided a storage means for storing a plurality of magneto-optical disks, a drive for reading / writing the magneto-optical disks, and between the drive and the storage means. The magneto-optical disk library apparatus is provided with an inserting / removing means for inserting and removing the magneto-optical disk, and a management information storing means for storing file management information of the plurality of magneto-optical disks at the time of system startup. Achieve the purpose of 1.
According to a second aspect of the invention, a storage means for storing a plurality of magneto-optical disks, a drive for reading and writing the magneto-optical disks, and an insertion for inserting and removing the magneto-optical disk between the drive and the storage means. .Searching at least one of the ejecting means, the storing means for storing the contents of the magneto-optical disk, the designated magneto-optical disk and the frequently used magnetic disk from the magneto-optical disk stored in the storing means at the time of system startup. The second object is achieved by providing the magneto-optical disk library device with a searching means and a copying means for copying the magneto-optical disk searched by the searching means to the storage means.

[0006]

In the magneto-optical disk library device according to the present invention, in addition to the magneto-optical disk and the like, there is provided management information storage means such as a hard disk that can be temporarily or semi-permanently stored. Then, in this management information storage means,
For example, the writable capacity of the magneto-optical disk, writing of readable or executable file names, etc. File in advance. As a result, the required magneto-optical disk can be quickly examined without moving. In the magneto-optical disk library device according to the second aspect of the present invention, the magneto-optical disk existing in the storage means is searched by the search means for a user-designated one or a frequently used one. Then, the contents of the inspected magneto-optical disc are copied by a copying unit to a storage unit such as a hard disk capable of temporarily or semi-permanently storing the contents. This reduces the time required to move different magneto-optical discs between the drive and the storage means.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the magneto-optical disk library device of the present invention will be described in detail below with reference to FIGS. FIG. 1 shows the configuration of a magneto-optical disk library device. In this figure, 11 is a host computer device, 12 is a processor, 13 is a display device, 14 is a terminal device, 15 is a file capacity determination unit, 16 is a file management information reading / writing unit,
Reference numeral 17 is a file management information storage unit, 18 is a file update new creation determination unit, 19 is a file reading / writing unit, 2
Reference numeral 0 is a magneto-optical disk library device control unit, 21 is a recording medium (filing device), 22 is a magneto-optical disk library device (filing device), 23 is an autochanger mechanism, 24 is a magneto-optical disk drive, 25, 2
6 and 27 are media.

FIG. 2 conceptually shows the file management information table stored in the file management information storage unit 17. As shown in the figure, the file management information storage unit 17 stores shelves, surfaces, drive IDs, directories, file names, presence / absence of copying, and frequency of use corresponding to each file number.

Next, the operation of the embodiment thus constructed will be described. FIG. 3 shows the starting operation of the system. First, when the host computer device 11 is started, the file management information of all the media 25, 26, etc. existing in the magneto-optical disk library device 22 is stored.
The file management information reading / writing unit 16 reads the data via the magneto-optical disk library device control unit 20 (step 11). Then, the file management information table of the file management information storage unit 17 in the recording medium 21 is written (step 12), and the system startup operation is ended.

Next, the operation of writing and reading a file according to this embodiment will be described with reference to FIGS.
explain. First, a case where a file is written to the media 25 and 26 existing inside the magneto-optical disk library device 22 will be described. When the host computer device 11 is started, the magneto-optical disk library device 22
The file management information reading / writing unit 16 reads the file management information of all the media 25, 26, ... Then, a file designated by the user, a file that is frequently used, a file that is frequently read, a file that has a new date, and the like are written to the recording medium 21 by the file reading / writing unit 19. Further, the file management information reading / writing unit 16 updates the file management information storage unit 17.

When the file created by the terminal device 14 is written to the medium 26 existing inside the magneto-optical disk library device 22, the file management information reading / writing part 16 causes the file management information storage part 17 to be written. (Step 21), the file update new creation determination unit 18 determines whether or not the file exists in all, and the file capacity determination unit 15 compares the free space and the size of the file to be written and writes the file. It is determined whether it is possible (step 22). If there is free space and writing is possible (step 22;
Y), write the corresponding file to the recording medium 21 (step 23), and read and write the file management information 1
At step 6, the directory information and the file management information 17 are updated (step 25), and the writing operation is completed. On the other hand, when the file to be written has a larger capacity and cannot be written in the judgment of the free space (step 2
2; N), the processing is ended after the error processing (step 24).

Next, a case where a file designated by the terminal device 14 is read from the medium 26 existing inside the magneto-optical disk library device 22 will be described with reference to FIG. The file management information read / write unit 16 reads the file management information 17 (step 26), and the file update new creation determination unit 18 is executed.
Then, it is judged whether or not the corresponding file exists (step 27). If the file exists (step 2)
7; Y), it is judged where the file designated by the file management information 17 is (step 29). Here, the designated file is the recording medium 2 such as a hard disk.
If it exists in step 1 (step 29; N), the file is simply read (step 32) and the read operation is terminated.

On the other hand, when the designated file does not exist in the recording medium 21 but exists in the magneto-optical disk library device 22 (step 29; Y), the designated medium 2
6, 27 and the like are inserted into the magneto-optical disk drive 24 by the auto changer mechanism 23 (step 30), and the designated file is read (step 31). At the same time, the read file is written to the recording medium 21 (step 33), the file management information storage unit 17 is updated (step 34), and the reading process ends. When the file update new creation determination unit 18 determines that the corresponding file does not exist (step 27; N), error processing (step 28) is performed, and then the reading operation ends.

The write and read operations have been described above. However, depending on the frequency of use of the file, the file capacity, etc., it is recognized as unnecessary for 21 or at a specified time, the magneto-optical disk library device 22 is read from 21.
The file is created, updated, and deleted in the filing apparatus, and the file management information read / write unit 16 updates the file management information storage unit 17 to constantly manage the file.

FIG. 6 shows the configuration of the second embodiment. In the second embodiment, among files existing in the magneto-optical disk library device, files specified by the user and frequently used are searched for from the media existing in the magneto-optical disk library device and temporarily stored. The data is copied to another recording medium such as a hard disk that can be stored temporarily or semi-permanently. As shown in FIG. 6, in the second embodiment, the usage frequency determination unit 35, the designated file setting unit 36, the usage frequency writing / reading unit 38, the file reading / writing unit 40, the usage frequency storage unit 42, and the designated file recording. The part 43 is further arranged.

FIG. 7 conceptually shows a file designation table for copying, which is stored in the designated file storage unit 33. As shown in this figure, the specification conditions of the file to be copied include directory specification, file name specification, date specification, shelf specification, surface specification, drive specification, and usage frequency specification. It is possible to specify by the sum or product of the conditions. Here, the file to be copied is the designated file setting section 3
6 to be specified by the user.

Next, the starting operation of the system according to the second embodiment will be described with reference to FIG. First, when the host computer device 31 is activated, the contents of the file storage unit 43 set by the specified file setting unit 36 are read by the specified file writing / reading unit 39 (step 11), and the file writing unit 40 is read by the magneto-optical disk library. The designated file is written in the recording medium 41 via the device control unit 44 (step 12). Also,
The usage frequency storage unit 42 is used as a usage frequency writing / reading unit 38.
File is read out by the use frequency judgment unit 35, and a file having a high frequency is selected from all the media 48, 49 and others existing in the magneto-optical disk library device 45, and the file read / write judgment unit 37 selects the magneto-optical disk. The corresponding file is read by the file reading / writing unit 40 via the library device control unit 44 (step 13), and the file designated by the file writing unit 40 via the magneto-optical disk library device control unit 44 is recorded on the recording medium. 41 (Step 1
2). Then, the file management information of the file written in the recording medium 41 is written in the file management information table (FIG. 2) of the file management information storage unit 50 in the recording medium 41 (step 15), and the activation process ends.

[0018]

In the magneto-optical disk library device according to the first aspect of the present invention, since the management information storage means for storing the file management information of the magneto-optical disk at the time of system startup is provided, the writable permissible amount, the readable or executable amount. Possible file names can be checked quickly, and processing can be performed efficiently and quickly. In the magneto-optical disk library device according to claim 2, a specified magneto-optical disk,
Retrieval means for retrieving at least one of the frequently used magnetic disks from the magneto-optical disk housed in the housing means at the time of system startup, and copying means for copying the magneto-optical disk searched by the searching means to the storage means. Since it is provided, the number of times of using the insertion / removal means can be reduced, and the processing can be performed efficiently and promptly.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an embodiment of a magneto-optical disk library device of the present invention.

FIG. 2 is a conceptual explanatory diagram of a file management information table of the same.

FIG. 3 is a flowchart showing a starting operation in the first embodiment.

FIG. 4 is a flowchart showing a file writing operation of the above.

FIG. 5 is a flowchart showing a file reading operation of the above.

FIG. 6 is a configuration diagram of a second embodiment of the same.

FIG. 7 is a conceptual explanatory diagram of a file designation table of the above.

FIG. 8 is a flowchart showing a starting operation of the same.

[Explanation of symbols]

 11 host computer device 14 terminal device 15 file capacity determination unit 16 file management information read / write unit 17 file management information storage unit 18 file update new creation determination unit 19 file read / write unit 20 magneto-optical disk library device control unit 21 recording medium 22 optical Magnetic disk library device 23 Auto changer mechanism 24 Magneto-optical disk drive 25, 26, 27 Media 42 Usage frequency storage unit 43 Designated file recording unit

Claims (2)

[Claims] 1. A storage unit for storing a plurality of magneto-optical discs, a drive for reading and writing the magneto-optical discs, and an insertion / insertion unit for inserting and removing the magneto-optical discs between the drive and the storage unit. A magneto-optical disk library device comprising: a take-out means and a management information saving means for saving the file management information of the plurality of magneto-optical disks at system startup. 2. An accommodating means for accommodating a plurality of magneto-optical disks, a drive for reading and writing the magneto-optical disks, and an inserting / extracting means for inserting and ejecting the magneto-optical disks between the drive and the accommodating means. Storage means for storing the contents of the magneto-optical disk, and retrieval means for retrieving at least one of a designated magneto-optical disk and a frequently used magnetic disk from the magneto-optical disk housed in the housing means at system startup. A magneto-optical disk library apparatus comprising: a copying unit that copies the magneto-optical disk searched by the searching unit to the storage unit.