JPS63229682A - Collective type optical disk device - Google Patents

Abstract

PURPOSE:To distribute load between a collective type optical disk and a host system with which this device is connected by providing a memory part which stores a volume control table in the collective type optical disk device. CONSTITUTION:In the collective type optical device provided a medium storing part 30 consisting of plural cells which respectively store optical disk mediums and a reading/writing part 20 which reads and writes the optical disk medium, the memory part 40 which stores the volume control table controlling the volume name of the optical disk medium and the position of the cell stored in the medium storing means is provided. Therefore, as the extra capacity for the volume control table is not needed on the magnetic disk device of the host system side and the extra processing in the host system side is not needed, the burden of the host system is reduced.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a collective optical disk device.

[Conventional technology]

Conventionally, a volume management table that manages media stored in a collective optical disk device and their storage locations has been stored and managed in a magnetic disk device on the side of a host system to which the collective optical disk device is connected.

[Problem that the invention seeks to solve]

The conventional collective optical disk device described above requires extra capacity for the volume management table on the magnetic disk device on the host system side.

Additionally, when accessing an optical disk, extra processing is required on the upper system side to search the volume management table on the magnetic disk device in order to find the cell location where the medium is stored. The disadvantage is that it is time consuming.

[Means for solving problems]

The present invention provides a collective optical disk device comprising a medium storage section each consisting of a plurality of cells for storing an optical disk medium, and a read/write section for reading and writing from and to the optical disk medium. The storage unit includes a storage unit that stores a volume management table that manages the volume name of the optical disc medium and the location of the cell.

〔Example〕

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

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention, FIG. 2 is a schematic diagram showing a volume management table registered in the storage unit 4o shown in FIG. 1, and FIG. 3 is the same as shown in FIG. 1. The schematic diagram of the medium storage unit 3o, FIG. 4, and FIG. 5 are a flowchart at the time of initializing the optical disk medium and a flowchart at the time of accessing the optical disk, respectively, in the embodiment shown in FIG.

First, the initialization of the optical disk medium shown in FIG. 4 will be described. The initialization medium mounting means 1 mounts the optical disk medium inserted into the medium input/output section 10 into the read/write section 20 in response to a command from the host system. The medium initialization means 2 initializes the optical disk medium mounted in the read/write unit 20 according to a command from the host system, and assigns a volume name to the optical disk medium. In the medium storage unit 3, the optical disk medium is transferred from the read/write unit 20 to the cell 3 at the position specified by the host system of the medium storage unit 30.
Store in 1. The storage unit registration means 4 registers the volume name 41 given by the medium initialization unit 2 and the cell position 42 of the medium storage unit 30 stored in the medium storage unit 3 in the volume management table (FIG. 2) on the storage unit 40. do.

Next, a description will be given of the optical disc access state shown in FIG. 5. The access medium specifying means 5 specifies the volume name of the optical disk medium to be accessed from the host system. In the storage section reading means 6, the access medium specifying means 5
Reads the volume management table record with the volume name specified by . The cell position acquisition means 7 retrieves cell position information from the record read out by the storage reading means 6, and the access medium mounting means 8 includes:
The optical disk medium in the cell 31 at the position obtained by the cell position acquisition means 7 is taken out from the medium storage section 30 and mounted on the read/write section 20.

〔Effect of the invention〕

As explained above, the present invention has the effect of distributing the load between the collective optical disk device and the host system to which it is connected by providing a storage section for storing a volume management table in the collective optical disk device. .

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention, FIG. 2 is a schematic diagram showing a volume management table registered in the storage unit 4o shown in FIG. 1, and FIG. 3 is the same as shown in FIG. 1. The schematic diagram of the medium storage unit 3o, FIG. 4, and FIG. 5 are a flowchart at the time of initializing the optical disk medium and a flowchart at the time of accessing the optical disk, respectively, in the embodiment shown in FIG. 10...Media input/output section, 20...Read/write Fig. 1 Fig. 2 Fig. 3 Fig. 4 Fig. 5

Claims (1)

[Claims] The optical disk medium stored in the medium storage section in a collective optical disk device comprising a medium storage section each comprising a plurality of cells for storing an optical disk medium, and a read/write section for reading and writing from and to the optical disk medium. 1. A collective optical disk device, comprising: a storage unit that stores a volume management table for managing volume names of the cells and positions of the cells.