JPH02213955A - Back-up copying method for picture data base device - Google Patents

Abstract

PURPOSE:To attain a back-up copy system without using the same volume name by performing a back-up copy operation to a copy receiver memory medium from a copy sender memory medium with use of the different volume names and changing the different volume names into the original ones to the copy sender memory medium after the end of the back-up copy operation. CONSTITUTION:The volume name BB of a copy sender memory medium 52 is changed into another volume name XX prior to a back-up copy operation. Then the unchanged name BB of the medium 52 is added to a copy receiver memory medium 5N. The medium 5N is set out of the control of a picture data base device after the back-up operation, and the name XX of the medium 52 is turned again into the original name BB. Therefore two memory media of the same volume name are never present in a back-up copy state owing to a fact that both media 52 and 5N have the different volume names from each other. Thus the back-up copy operation can be executed as it is without changing the constitution of a back-up copy.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a single image database device, and particularly to a backup copying method for an image database device suitable for performing backup copying between storage media.

[Conventional technology]

The database device is configured to respond to various processing requests using a wide range of data as reference data. There is a large amount of data, including administrative, social, and scientific and technological data.

Among data, images contain an extremely large amount of information, so unlike general data, the scale of the database device is extremely large. It is necessary to store image data all at once so that accurate image data can be searched and quickly provided to requesters. In the case of medical images, there are many images such as an xmcT image and its multiple slice images, NMR images, and ultrasound wave images, and the scale of the image database device is extremely large.

The image database device has a plurality of storage media and stores image data in each storage medium. Storage media need to be managed independently of each other, and for this reason, volume names are assigned as labels.

The image database device specifies the storage medium by specifying this volume name.

Since the volume name is the name of a storage medium, even if a large number of storage media exist, two or more storage media with the same volume name are not allowed to exist.

Regarding computers for medical image processing.

It is described in "Recent Medical Image Diagnostic Devices" (Supervised by Hiroshi Kimura, published by Asakura Shoten, June 25, 1988, pp. 43-44). However, the database device is not described.

[Problem to be Solved by the Invention] There is a need to make a backup copy of the storage medium of an image database device. However, it is necessary that the backup copy storage medium and the copy source storage medium have the same volume name.

This is because a backup is just an emergency copy, and it is useless unless it is the same volume.

On the other hand, as described above, in an image database device, there must be only one volume name.

The existence of two is not enforced for administrative purposes. A particular problem is that backup copies cannot be made as is.

An object of the present invention is to provide a backup copying method for an image database device that enables backup copying without using the same volume name.

[Means to solve the problem]

The present invention changes the volume name of the copy source storage medium to another volume name before performing a backup copy, gives the copy destination storage medium the volume name of the copy source storage medium before the change, and then waits until the backup copy is completed. After that, it was decided to take the copy destination storage medium out of the control of the image database device and change the volume name of the copy source storage medium back to the original volume name.

Furthermore, in the present invention, in the above example, the volume name of the copy source storage medium is changed before copying, but the volume name of the copy destination storage medium is changed to a different volume name, and after copying is completed,
This copy destination storage medium may be changed to the volume name of the copy source storage medium. At this time, it is necessary to keep the copy source storage medium out of the management of the image database device at the time of the change.

[Effect]

According to the present invention, since the copy source storage medium and the copy destination storage medium have different volume names before backup copying, two storage media with the same volume name do not exist during backup copying. , backup copies without requiring any configuration changes.
It can be carried out as is.

〔Example〕

FIG. 2 is an example diagram of an image database device. This image database device includes an image processing device 10. Mass storage device 50. Display device 30. Operation console 40° diagnostic bag W!
It consists of 60 pieces.

The large-capacity storage device 50 is a large-capacity storage device that stores image data, and is composed of at least one storage medium.

The console 40 is used to input input/output commands for image data to the mass storage device 50, and is also equipped with control switches, keys, and the like.

The display device 30 is an image processing device! The image data read out by 10 is displayed.

The image processing device 10 integrates and controls the operations of all other devices, and includes a magnetic disk 13 that stores image data and other data transferred from the mass storage device 50 and the diagnostic device 60, and a display. An image memory 14 for temporarily storing image data for displaying images on the device 30, and a memory 1 for storing programs, various files, etc.
2, an input/output I/F 15 for exchanging data between the operation console 40, a storage device I/F 16 for exchanging data between the mass storage device 50, and 1 the diagnostic device 60. Network I/F17 for
, a CPU II for controlling each of the above elements, and a bus 18 for transferring data.

1 Parts directly operated by the user, such as image display and command input (display device! 30. Operation console 40. Image memory 1)
4. The input/output I/F 15) are combined into a work monitor 20, and any number of monitors can be connected.

Next, with reference to the flowchart in FIG. 1, the processing procedure for backup copying using the present invention will be explained using the mass storage device 50 in FIG. 2 as an optical disk library device, together with the state diagram of the optical disk library device in FIG. 3. do. First, an optical disk serving as a storage medium is capable of both writing and reading functions, but it is not possible to rewrite to an already written area, and writing is only possible to a new empty area. If you want to make the previously written part unusable.

The data in that part is erased, making it impossible to read the data. Also, to distinguish each optical disc.

Assign a volume name to each optical disk.

Record on the optical disc itself. When changing a volume name, the writing part of the volume name before the change is made unusable, and the volume name is newly recorded in a new location.

The optical disk library device consists of an optical disk storage 1 (hereinafter referred to as a cell) consisting of a plurality of stages in which one optical disk is set in each stage, a transfer control device that selects and transfers optical disks from this cell, and an optical disk access ( It consists of an optical disk drive device that performs writing (writing and reading), and an optical disk control device that controls them. When accessing an optical disk with one or more optical disks set in a cell, the optical disk is selected from the cell based on the volume name recorded on the optical disk, and the transfer control device transfers the selected optical disk to the optical disk. Transfer to drive unit. However, one optical disk drive device has 1
Only one optical disc can be set. Therefore, when copying between optical discs, the copy source optical disc and the copy destination optical disc are distributed to separate optical disc drives, and the contents of the copy source optical disc are All you have to do is copy it to the destination optical disk.

The optical disk control device issues commands to select and transfer these optical disks, and the optical disk control device issues an access command to the optical disk set in the optical disk drive device. This is also possible from the image processing device 10 shown in FIG.

The backup copy processing method will be described below with reference to FIGS. 1 and 3. FIG. 3 is a diagram showing the states of cells consisting of stages 1 to N of the optical disc library device for each processing process.

It is assumed that all optical disks within a cell are accessed and processed by the optical disk drive device.

First, as shown in 301, it is assumed that an optical disk 51 with a volume name AA is set in cell 1, an optical disk 52 with a volume name BB in cell 2, and an optical disk 53 with a volume name CC in cell 3. Assume that a backup copy of an optical disk 52 named BB is to be performed.

When the optical disc 52 with the volume name BB is used as the copy source optical disc, a copy destination optical disc is required.

New optical disk 5N, which is the copy destination optical disk, is in cell N.
is set (step 201).

Since one or more volume names cannot exist on the optical disc library device, it is necessary to change the copy source optical disc to a different name. The volume name BB of the optical disk 52 of 302, which is the copy source optical disk, is changed to xX, which is another volume name (step 202).

Change the copy source volume name BB before changing the new optical disk 5N, which is the copy destination optical disk set in step 201, to
It is initialized (step 203).

When the inside of the cell reaches the state 302, a backup copy is performed from the copy source optical disk 52 to the copy destination optical disk 5N (step 204).

Since the processes in steps 201 to 203 above are performed internally, it appears that there are two optical disks with the same volume name on the external optical disk library device, but in reality, there are two optical disks with the same volume name. There is no optical disk with the same volume name in a cell.

When the backup copy is completed, the copy destination optical disk 5N is removed from the optical disk library device as shown in 303 (step 205), and the copy source optical disk 52 whose volume name has been changed to XX is changed to the original volume name B.
Return to step B (step 206). According to the present invention, optical disks with the same volume name are apparently being accessed even though only optical disks with different volume names exist on the optical disk library device. You can now make backup copies like this.

In this example, the volume name of the copy source optical disk is first changed to a different name, and after the backup copy,
Although we used the method of restoring the original volume name, it is also possible to initialize the copy destination optical disk with a different volume name, and then change the volume name to the same volume name as the copy source optical disk after the backup copy.

The present invention can be applied to other large capacity memories such as magnetic disk library devices in addition to optical disk library devices.

(Effects of the Invention) According to the present invention, one
Since it is possible to have two or more storage media with the same volume name externally, users can perform backup copies with simple command operations without changing the configuration of the image database system. be.

[Brief explanation of the drawing]

FIG. 1 is an embodiment of a flow chart of the present invention. FIG. 2 is a diagram of an embodiment of the image database apparatus, and FIG. 3 is a diagram illustrating the operation of backup copying. 10... Image processing device, 50... Mass storage device. Patent applicant Hitachi Medical Co., Ltd. Patent attorney Masami Akimoto and 1 other person Figure 1 Figure 2 Figure

Claims (1)

[Claims] 1. An image comprising a mass storage device that stores image data and has at least one storage medium that does not have the same volume name, and an image processing device that manages and controls the device. In the database device, when performing a backup copy of the storage medium of the mass storage device, the volume name of either the copy source storage medium or the copy destination storage medium is used as the volume name of the copy source storage medium. , set one of the other volume names to a volume name different from the volume name of the copy source storage medium, and then perform a backup copy from the copy source storage medium to the copy destination storage medium under these mutually different volume names, A backup copying method for an image database apparatus comprising changing the different volume name to the original volume name of the copy source storage medium after the backup copy is completed.