JP3394879B2 - Data recording medium conversion processing method and apparatus - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to recording data in a second recording format on a first data recording medium on which data is recorded in a first recording format, which is a data recording medium accessed by a drive device of a computer. The present invention relates to a conversion processing method and apparatus for converting the converted second data recording medium.

Cartridge tapes, floppy disks, magnetic disks, magneto-optical disks, and various other types are used as computer data recording media. The recording density of these data recording media is increasing year by year, and the data storage efficiency is improving. Therefore, although data recording media of the same type may have different recording densities, it is desirable to shift to a recording format having a recording density as high as possible.
The present invention is utilized to facilitate such a transition.

[0003]

2. Description of the Related Art Conventionally, a cartridge tape is often used as a data recording medium accessed by a drive device of a computer. As a recording format of the cartridge tape, 18-track recording has been generally used, but in recent years, 36-track recording having higher density and higher data storage efficiency has been used.

Conventionally, a drive device for reading / writing a cartridge tape has been compatible with 18-track recording, but in recent years, 18-track recording and 36-track recording have been mixed. It is used. Among them, the one for 36-track recording is
In some cases, reading and writing of 36-track recording and reading of 18-track recording are possible.

In any case, the cartridge tape shifts from 18-track recording to 36-track recording sooner or later.

[0006]

Therefore, there is a problem of how to perform the transition work from 18-track recording to 36-track recording.

In order to solve this problem, it is necessary to concentrate the work of extracting the 18-track record from the existing cartridge tape and converting the extracted 18-track record into the 36-track record. Conceivable.

However, in that case, it takes a considerable amount of time and labor to extract 18-track recording data and convert it to 36-track recording data, which may affect normal operations.

The present invention has been made in view of the above-mentioned problems, and the first data in which the data is recorded in the first recording format like the cartridge tape of 18-track recording while continuing the normal business as it is. An object of the present invention is to easily convert a recording medium into a second data recording medium in which data is recorded in a second recording format such as a 36-track recording cartridge tape and to smoothly perform the transition to the second data recording medium. And

[0010]

According to a first aspect of the present invention, there is provided a data recording medium accessed by a drive device of a computer, the first data recording medium having data recorded in a first recording format. A conversion processing method for converting into a second data recording medium in which data is recorded in a second recording format, the storage location of the data recording medium and the recording method.
A medium management table storing a recording format is provided, and when analyzing the job control language of a job input to the computer, the medium management table is used to determine whether or not the first data recording medium is accessed. If it is determined that the conversion process is necessary, the first recording read out from the first data recording medium set in the first drive device is detected. Format data second
Data in the recording format of and is set in the second drive device.
Performs processing for copying the bets have been the second data recording medium.

According to a second aspect of the present invention, in analyzing the job control language of a job input to the computer, it is determined whether or not the first data recording medium is accessed by using the medium management table. If it is determined that the conversion process is necessary, the first recording read out from the first data recording medium set in the first drive device is detected. Format data second
Data in the recording format of and is set in the second drive device.
Performs processing for copying the bets have been the second data recording medium, start the job after being subjected to the copying process, in the job that has been started to access the second data recording medium that has been converted.

[0012] The method according to the invention of claim 3, only when there is writing to the first data recording medium, it determined that the conversion processing required there.

According to the invention of claim 5, the data
Media management table that stores the storage location and recording format of recording media
And for reading from the first data recording medium
First drive device and writing on the second data recording medium
A second drive device for performing recording, job analysis means for analyzing a job control language of a job input to the computer, and the medium management table for determining whether or not the first data recording medium is accessed. To the first drive device when it is determined that conversion processing is necessary, and a determination unit that detects the conversion processing and determines whether conversion processing is necessary.
The first data read from the set first data recording medium
Converts data in 1st recording format to data in 2nd recording format
And a copy processing means for performing a process of copying to the second data recording medium set in the second drive device .

[0014]

[0015]

According to a fifth aspect of the present invention, there is provided the device according to the first aspect.
As the drive device and the second drive device, a device capable of reading from and writing to the first data recording medium and reading and writing to the second data recording medium is used.

According to a sixth aspect of the present invention, the data recording medium is a cartridge tape, the first recording format is an 18-track recording format, and the second recording format is a 36-track recording format. .

A conversion processing method according to the present invention will be described with reference to a flowchart. As shown in FIG. 5, when a job is submitted (# 11), the job control language (JCL) is analyzed (# 12). The medium check process is performed (# 13), and it is determined whether or not the recording medium requires the conversion process (# 14). If conversion processing is required, copy processing (conversion processing) is performed (# 15), and then the job is activated (# 16).

In FIG. 6, in the medium check processing, the volume serial number for identifying each recording medium is acquired from the job control language (# 21), and the recording format is acquired from the medium management table (CDS) based on the volume serial number ( # 22).

In FIG. 7, in the copying process, the copy source recording medium designated by the job control language is set in the first drive device (# 31), and the copy destination recording medium is set in the second drive device. (# 32), copying is performed between them (# 33). In copying, expansion processing or compression processing is performed as necessary. The copy destination recording medium is unloaded into the original cell (# 34), the medium management table is rewritten (# 35), and the unnecessary copy source recording medium is ejected (# 36).

[0021]

1 is a block diagram showing the overall configuration of a computer system 1 equipped with a conversion processing device CA according to the present invention, and FIG. 2 is a diagram showing a job control language JCL1 of a submitted job JOB1, FIG. 3 is a diagram showing the medium management table 22.

In FIG. 1, a computer system 1
Is a host 11, a terminal device 12, a printer device 13, a media drive device 14, a job file 21, a medium management table (CDS) 22, a conversion program file 23, drive devices 24a and 24b, a control device 31, a manipulator 32, and a cell rack. 33 etc. The job control language file 21, the medium management table 22, and the conversion program file 23 are stored in the magnetic disk device.

The terminal device 12 is a display device 12
1, a keyboard 122, and a mouse 123. Various commands and data can be sent to the terminal device 12 and the host 11 by operating the keyboard 122 or the mouse 123. Various information sent from the host 11 is displayed on the screen HG of the display device 121.
Data, images, etc. are displayed. The printer device 13 is
The various information sent from the host 11 is printed. The media drive device 14 reads from or writes to the CD-ROM 141, the floppy disk 142, and various other recording media.

The job file 21 stores a job JOB submitted to the computer system 1. Job J
The OB is described in the job control language (JCL). The one described in the job control language, that is, the job JOB itself may be referred to as the job control language JCL.

In the job control language JCL1 shown in FIG. 2, a process for accessing the cartridge tape CGT is defined in the fourth and fifth lines. That is, according to the job control language JCL1 of FIG. 2, the device format of the drive device 24a used for access is "F6470" (UNIT = F6470), and the volume serial number NVL of the target cartridge tape CGT is "F001" ( VOL = SER = F001), the first data set recorded on the cartridge tape CGT is accessed with the standard label [LABEL = (1, S
L)].

In FIGS. 1 and 3, the medium management table 22 is shown.
In the cartridge tape CGT stored in the cell rack 33, the correspondence relationship between the volume serial number NVL, the cell address ADC, and the recording format TRC is stored.

The volume serial number NVL is a code capable of identifying each cartridge tape CGT. The cell address ADC indicates the address of the cell in the cell rack 33 with vertical and horizontal coordinates. The recording format TRC indicates whether the cartridge tape CGT is 18-track recording or 36-track recording.

In FIG. 3, for example, the volume serial number N
The cartridge tape CGT having a VL of “F001” is stored in the uppermost cell at the left end of the cell rack 33,
The recording format TRC is 18-track recording. Also,
The cartridge tape CGT having the volume serial number NVL of "W001" is stored in the fourth uppermost cell from the left of the cell rack 33, and its recording format TRC is 36-track recording. The cartridge tape CGT whose volume serial number NVL starts with "W" is used as a copy destination of the conversion process, and a new cartridge tape CGT is normally stored in the cell. When the data is written in the cartridge tape CGT, the contents of the medium management table 22 are changed so that when the cartridge tape CGT is returned to the cell rack 33, the contents are the same as the new contents of the cartridge tape CGT. Can be rewritten.

The conversion program file 23 stores various programs and data for performing conversion processing.
That is, the conversion program file 23 is a program for detecting whether or not there is access to the 18-track recording cartridge tape CGT in the job control language JCL, and determining whether conversion processing is necessary, a conversion processing A program for performing conversion processing from 18-track recording to 36-track recording when it is determined that there is a need is stored. The conversion process will be described later.

The drive devices 24a and 24b are devices for reading / writing the cartridge tape CGT. It should be noted that any of the drive devices 24a and 24b can read and write 36-track recording and can read 18-track recording. In reality, a large number of drive devices are installed, and two drive devices are designated from among them. In the present embodiment, one drive device 24a is used for reading from the 18-track recording cartridge tape CGT, and the other drive device 24b is used for writing to the 36-track recording cartridge tape CGT. Shall be used.

The control device 31 is a device for controlling the manipulator 32 in response to a command from the host 11.
The manipulator 32 is a robot for automatically loading and unloading the cartridge tape CGT. The cell rack 33 is for storing the cartridge tape CGT in each cell provided in a matrix. The position of each cell of the cell rack 33 is represented by a cell address ADC using vertical and horizontal coordinates.

Under the control of the control device 31, the manipulator 32 loads the cartridge tape CGT stored in the designated cell into the drive device 24a or 24b, and loads the cartridge tape CGT set in the drive device 24a or 24b. Unload to the specified cell.

The control device 31, manipulator 32, cell rack 33, medium management table 22, and drive device 24a,
24b may be integrally configured as, for example, a cartridge tape library device.

The host 11 analyzes the job control language JCL stored in the job file 21 and executes the job control language J.
Business process by executing CL, conversion program file 2
Conversion processing of the cartridge tape CGT by execution of the program stored in No. 3, data transmission / reception such as reception of commands from the terminal device 12 and output to the terminal device 12, data transmission / reception with the media drive device 14, printer device 13 Output to the computer, data exchange with the control device 31, and other various processes to control the entire computer system 1.

Next, the conversion processing in the computer system 1 will be described. FIG. 4 is a block diagram functionally showing the conversion processing device CA. The conversion processing device CA is realized by the host 11 executing a program.

In FIG. 4, the conversion processing device CA is provided with an initiator 111, a medium conversion exit routine 112, a job execution section 113, a copying section 115, and a manipulator control section 116.

The initiator 111 analyzes the submitted job JOB in order, and calls the medium conversion exit routine 112 after the analysis. Medium conversion exit routine 11
2 detects whether or not there is access to the 18-track recording cartridge tape CGT in the analyzed job control language JCL, and determines whether or not conversion processing is necessary. 1
The medium management table 22 is referred to in order to detect whether or not the 8-track recording cartridge tape CGT is accessed.

That is, the medium conversion exit routine 112
First, it detects whether or not access to the cartridge tape CGT is defined in the job control language JCL. If defined, the volume serial number N of the cartridge tape CGT specified by it
The VL is acquired and the recording format TRC corresponding to the volume serial number NVL is checked by referring to the medium management table 22. For example, in the case of the job control language JCL1 of FIG. 2, the volume serial number NVL is "F001", and according to the medium management table 22, the corresponding recording format TRC is 1.
8 track recording.

The job execution unit 113 is activated when the medium conversion exit routine 112 determines that conversion processing is not necessary, or when conversion processing is determined to be necessary and the conversion processing is completed, Control language JCL
Execute the process defined in. As a result, the designated cartridge tape CGT is accessed.

The copying unit 115 uses the medium conversion exit routine 1
When it is determined in step 12 that conversion processing is necessary, 18-track recording data is read from the cartridge tape CGT set in the drive device 24a,
After converting the read data into 36-track recording data, the converted data is overwritten on the cartridge tape CGT set in the drive device 24b. When converting data, decompression processing or compression processing is performed as necessary. A series of processes performed by the copy unit 115 may be referred to as “copy” or “copy process”.

The manipulator controller 116 executes the conversion process by executing the 18-track recording cartridge tape CGT of the copy source designated by the job control language JCL.
Is loaded into the drive device 24a, and a control signal is output to the control device 31 such that the cartridge tape CGT of the copy destination is loaded into the drive device 24b.

In the present embodiment, in determining whether conversion processing is necessary, it is detected whether there is access to the 18-track recording cartridge tape CGT, and if there is access, that is, read / write. It is determined that conversion processing is necessary. However, instead of this, it may be determined that the conversion process is necessary only when the 18-track recording cartridge tape CGT is written. In this case, when reading from the 18-track recording cartridge tape CGT, it is determined that conversion processing is not necessary. By doing so, the conversion process is performed only for the cartridge tape CGT that is required for the time being, and the concentration of the conversion process can be avoided. However, the period for which a device for reading 18-track recording is required becomes long.

Next, the flow of the conversion process will be described with reference to the flowchart. FIG. 5 is a flowchart showing a procedure including conversion processing, FIG. 6 is a flowchart showing a procedure of medium check, and FIG. 7 is a flowchart showing a procedure of copy processing.

In FIG. 5, when a job JOB is submitted (# 11), the job control language JCL is analyzed (# 12). The medium check process is performed (# 13), and it is determined whether or not the recording medium requires the conversion process (# 14).

If conversion processing is required, copy processing (conversion processing) is performed (# 15), and then the job JOB is started (# 16). 6, in the medium check process, the volume serial number NVL is acquired from the job control language JCL (# 21), and the recording format TRC is acquired from the medium management table 22 based on the volume serial number NVL (# 2).
2).

In FIG. 7, in the copying process, the copy source recording medium designated by the job control language JCL is loaded into the first drive device (# 31), and the copy destination recording medium is loaded into the second drive device. After that (# 32), copying is performed (# 33).

The recording medium of the copy destination is unloaded to the original cell (# 34), the medium management table 22 is rewritten (# 35),
The unnecessary recording medium of the copy source is ejected (# 36).
FIG. 8 is a diagram showing a recording example of the cartridge tape CGT, and FIG. 9 is a diagram showing the medium management table 22a after the conversion processing.
Note that FIG. 8A shows an example of a cartridge tape CGT1 of 18-track recording which is a copy source, and FIG. 8B shows a cartridge tape CG of 36-track recording which is a copy destination.
An example of T2 is shown, and FIG. 8C shows a recording state after the copying to the cartridge tape CGT2 of the copying destination is completed.

The cartridge tape CGT1 of FIG. 8 (A)
In, the serial number NVL and the recording format TRC are recorded as the volume label, and subsequently, the first data set, the second data set, ... Are recorded.

The cartridge tape CGT2 of FIG. 8 (B)
In, only the volume label is recorded, and the data set is not recorded. In the cartridge tape CGT2 of FIG. 8C, the volume serial number NVL of the volume label is changed from "W001" to "F001", and the recording format TRC is 36-track recording. Figure 8
The cartridge tape CGT2 in the state of (C) is returned to the original cell [cell address ADC is (4, 0)].

As shown in FIG. 9, the medium management table 22a is
The data for the cell with the cell address ADC (0,0) is deleted, and the volume serial number NVL for the cell with the cell address ADC (4,0) is changed from "W001" to "F001". Therefore, in the subsequent execution of the job JOB, when the cartridge tape CGT having the volume serial number NVL of “F001” is accessed, the cartridge tape CGT2 stored in the cell having the cell address ADC of (4,0) is targeted. .

According to the computer system 1 described above,
At the time of analyzing the job control language JCL, it is determined whether or not the conversion process is necessary for the cartridge tape CGT used for executing the job JOB, and the conversion process is performed for the cartridge tape CGT that is determined to be necessary. Work to extract track records and 36
It is not necessary to separately and intensively perform special work for conversion processing such as conversion to track recording. Therefore,
It is possible to smoothly shift to 36-track recording while continuing normal business.

Also, after the conversion processing is completed, the job JO
B is started, but in the started job JOB, the cartridge tape CGT after the conversion process is normally accessed.

Analysis of the job control language JCL, determination of the presence or absence of conversion processing, etc. are performed in a normal job space, and copy processing is performed in a copy space which is a space different from the job space. Therefore, processing is performed in each space. Can be performed in parallel, and normal processing in the job space is not hindered. However, since it is not preferable that the copy space becomes unlimitedly large, it is preferable to define the number of copy processes that can be executed simultaneously.

In the above-described embodiment, since the drive devices 24a and 24b can read 18-track recording, the conversion processing is performed only when the job control language JCL defines writing to the cartridge tape CGT. In that case, a special drive device for reading 18-track recording is not required, and the cartridge tape library device is simplified. Further, when the conversion process is performed for both reading and writing on the cartridge tape CGT, the transition to the 36-track recording is performed quickly, and after the complete transition to the 36-track recording, only for the 36-track recording. A drive device can be used.

In the above embodiment, the cartridge tape CGT is explained as the data recording medium, but it is also applicable to other data recording mediums such as floppy disk, DVD, magneto-optical disk and the like. Further, it is also possible to perform conversion to different types of data recording media. When performing the conversion process,
The data recording medium of the copy source and the data recording medium of the copy destination can be the same.

In the above embodiment, the job file 21, medium management table 22, conversion program file 23,
The configuration of the conversion processing device CA, the cartridge tape library device, etc., the name, the description method, the processing method, the processing sequence, the configuration of the entire computer system 1 or the configuration of each part, and the like can be appropriately changed in accordance with the gist of the present invention.

The program for performing the above conversion processing is the conversion program file 23 (magnetic disk device), CD-ROM 141, floppy disk 14
2. Memory 11 by reading from various other recording media
1 or can be downloaded from another host via a communication line. Such programs can be provided to operate under a variety of OSs, system environments, or platforms.

[0058]

According to the present invention, the first data recording medium having the data recorded in the first recording format is used for the second data having the data recorded in the second recording format while continuing normal business. It can be easily converted to a recording medium, and can be smoothly transferred to the second data recording medium.

Therefore, for example, a large number of 18-track recording cartridge tapes can be gradually and smoothly transferred to 36-track recording cartridge tapes while continuing normal operations. In addition, the existing cartridge tape does not require any special work to check whether or not it is for 18-track recording, and it is possible to reduce a lot of time and labor required for the transition. . Moreover, since the media management table is referred to,
It is necessary to refer to the data recorded on the data recording medium itself.
It becomes easy to judge whether or not conversion processing is necessary.
You can

According to the third aspect of the present invention, since the conversion processing is performed only when the first data recording medium is written, the number of conversion processings executed simultaneously is reduced, which may affect the normal business processing. It can be further reduced.

[0061]

According to the invention of claim 5 , a special drive device for reading from the first data recording medium is not required, and the device can be simplified.

[Brief description of drawings]

FIG. 1 is a block diagram showing an overall configuration of a computer system including a conversion processing device according to the present invention.

FIG. 2 is a diagram showing an example of a job control language of a submitted job.

FIG. 3 is a diagram showing an example of a medium management table.

FIG. 4 is a block diagram functionally showing a conversion processing device.

FIG. 5 is a flowchart showing a procedure including a conversion process.

FIG. 6 is a flowchart showing a procedure of medium check.

FIG. 7 is a flowchart showing a procedure of copy processing.

FIG. 8 is a diagram showing a recording example of a cartridge tape.

FIG. 9 is a diagram showing an example of a medium management table after conversion processing.

[Explanation of symbols]

1 Computer system (computer) 11 Host (conversion processor) 22 Media management table 24a drive device (first drive device) 24b drive device (second drive device) 111 Initiator (job analysis means) 112 Medium conversion exit routine (determination means) 115 Copying Unit (Copy Processing Means) CA conversion processor CGT cartridge tape (data recording medium) JCL job control language ADC cell address (data storage medium storage location) TRC recording format

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-8-314772 (JP, A) JP-A-5-143246 (JP, A) JP-A-3-238523 (JP, A) (58) Field (Int.Cl. ⁷ , DB name) G06F 3/06-3/08 G11B 20/10-20/16

Claims (6)

(57) [Claims] 1. A second data recording in which data is recorded in a second recording format on a first data recording medium in which data is recorded in a first recording format and which is accessed by a drive device of a computer. A conversion processing method for converting to a medium, wherein a storage location and a recording format of the data recording medium are stored.
A medium management table is provided, and when analyzing the job control language of a job input to the computer, it is detected whether or not there is access to the first data recording medium by referring to the medium management table. If the conversion process is necessary, the first dry process is performed.
Read from the first data recording medium set in the recording device.
The data of the first recording format that was issued is used for the data of the second recording format.
Data converted into a second drive device and set in the second drive device .
A conversion processing method for a data recording medium, characterized by performing a process of copying to a data recording medium. 2. A data recording medium which is accessed by a drive device of a computer, wherein a first data recording medium having data recorded in a first recording format is used as a second data recording medium having data recorded in a second recording format. A conversion processing method for converting to a medium, wherein a storage location and a recording format of the data recording medium are stored.
A medium management table is provided, and when analyzing the job control language of a job input to the computer, it is detected whether or not there is access to the first data recording medium by referring to the medium management table. If the conversion process is necessary, the first dry process is performed.
Read from the first data recording medium set in the recording device.
The data of the first recording format that was issued is used for the data of the second recording format.
Data converted into a second drive device and set in the second drive device .
Data for performing a process of copying on a data recording medium, activating the job after the copying process is performed, and accessing the converted second data recording medium in the activated job. Recording medium conversion processing method. 3. The conversion processing method for a data recording medium according to claim 1, wherein it is determined that the conversion processing is necessary only when writing to the first data recording medium is performed. 4. A second data recording in which data is recorded in a second recording format on a first data recording medium in which data is recorded in a first recording format, which is a data recording medium accessed by a drive device of a computer. A conversion processing device for converting to a medium, which stores a storage location and a recording format of the data recording medium.
A medium management table and a first medium for reading from the first data recording medium.
One drive device and a second drive for writing on the second data recording medium
A drive device, a job analysis means for analyzing the job control language job input to the computer, whether there is access to the first data recording medium before
If the judgment means for detecting with reference to the serial medium management table to determine whether it is necessary for the conversion process, it is determined that the required conversion processing is present, the first de
From the first data recording medium set in the live device
The read data of the first recording format is converted to the data of the second recording format.
Conversion of the data recording medium to the copy processing means for converting the data performs processing for copying to the set <br/> the second data recording medium to the second drive, to become a wherein Processing equipment. Wherein said first drive unit and the second drive unit are both reading and writing are possible to read and the second data recording medium from the first data recording medium, according to claim 4, wherein Data recording medium conversion processing device. Wherein said data recording medium is a tape cartridge, said first recording format is 18 track recording format, the second recording format is 36 track recording format, according to claim 4 data according recorded Media conversion processor.