JPH05120091A - Automatic file rearranging device - Google Patents

Abstract

PURPOSE:To attain the shortening of access time, the improvement of data maintainability, and the curtailment of maintenance manhour by automatically rearranging a file in accordance with the frequency in use of the file. CONSTITUTION:The using state of every file is stored in the monitoring file part 7 of a memory 8. The objective period and the judging condition (e.g. number of times of input/output) of monitoring data are inputted by a keyboard 9. In this case, an object to agree with the condition is extracted from the monitoring file part 7, and the number of times of input/output is totalized for every file. Next, as for the totalized data, the number of times of input/ output is rearranged on a key in descending order, and the area control part 4 of a control part 2 secures an area in a saving auxiliary storage device 10 in accordance with this order. Next, a data copying part 5 copies the data of the file from an auxiliary storage device 1 to the saving auxiliary storage device 10, and the rearrangement of the file is completed. After that, the rearranged file in the saving auxiliary storage device 10 is copied to the auxiliary storage device 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic file rearrangement apparatus, and more particularly to an automatic file rearrangement apparatus for rearranging files according to the usage status of files in an auxiliary storage device.

[0002]

2. Description of the Related Art Conventionally, for example, it is possible to increase the storage efficiency of a file by filling the empty areas between the files while keeping the area reservation order of the files on the auxiliary storage apparatus and creating one empty area at the rear on the auxiliary storage apparatus. It was common. Further, in order to rearrange files, it is common to create JCL (Job Control Language) and put it in a computer to save data and rearrange files.

[0003]

However, in the conventional technique, the empty area between the files can be filled up and the storage efficiency of the files can be improved, but the file placement is not considering the usage frequency of each file. Although the rate is high, there is a problem that the access time increases and the processing time slows down due to the fact that it is placed later.
Also, when relocating files, many files are managed in the auxiliary storage device, making JCL creation work complicated
There is also a problem that file data is lost due to an L creation error. Furthermore, there is also a problem in that it is necessary to periodically review the file layout, which requires maintenance man-hours.

[0004]

SUMMARY OF THE INVENTION An automatic file relocation device of the present invention saves a file in the auxiliary storage device for relocation and an auxiliary storage device to be relocated depending on the usage status of the file. From the auxiliary storage device for saving, a monitoring unit for monitoring the usage status thereof, an area control unit for managing the area of the auxiliary storage device and relocating files, and the auxiliary storage device for the file data. A data copy unit for transferring to the backup auxiliary storage device, a setting unit for setting monitoring data totaling conditions, a monitoring file unit for storing the monitoring data including the usage status of each file, and the monitoring data totaling conditions It has a keyboard part for inputting, and rearranges the aggregated monitoring data according to the frequency of use. Copying relocated file stored in the save auxiliary storage device after saving the relocates the file data is copied to each file in the save auxiliary storage device in accordance with the order in the auxiliary storage device.

[0005]

Embodiments of the present invention will now be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of an automatic file relocation device of the present invention. FIG. 2 is an explanatory diagram for explaining the operation before and after rearranging files in the embodiment of the present invention, and FIG. 3 is a flowchart showing an example of the operation in the embodiment of the present invention.

In this embodiment, the auxiliary storage device 1 which is the object of file relocation, the monitoring unit 3 which monitors the usage status of the target file, the area control unit 4 which manages the area of the auxiliary storage device, and the faril data. A control unit 2 including a data copy unit 5 for transferring data, a setting unit 6 having monitoring data tabulation conditions (target period, file input / output count, file usage time, etc.), and a monitoring file unit 7 for storing monitoring data. A memory 8 and a keyboard 9 for inputting the tabulation conditions of monitoring data,
The backup auxiliary storage device 10 temporarily stores the rearranged files.

In the setting section 6 of the memory 8, the condition of use judgment (input / output count, use time) inputted by the operator from the keyboard 9 is set. The monitoring file unit 7 stores the usage status (file name, measurement time, input / output count, usage time, etc.) of each file.

Next, the operation will be described.

FIG. 2 is an example of a diagram showing a state 51 of the auxiliary storage device 1 before starting relocation of files by this apparatus and a state 52 of the save auxiliary storage device 10 after relocation of files. This will be described with reference to the flowchart of FIG.

First, in order to determine the usage status, the period covered by the monitoring data (for example, from August 1, 1990 to 19
The operator inputs the determination condition (the number of input / output times) on September 30, 1990 using the keyboard 9. Those that meet this condition are extracted from the monitoring file unit 7 and the input / output count is totaled for each file (step 101). As a result, for example, file A 20000 times, file C 100
00 times, file D0 times, file E1000 times, and file G50000 times. Next, the aggregated data is rearranged in descending order using the input / output count as a key (step 10).
2), file G, file A, file C, file E, and file D are arranged in this order. One piece of this data is read (step 103). The file name G is fetched from the read data and the VTOC (VOL
Set the area start position near the VTOC based on the file label information (file organization, file size, record length, block length, record format, key length, position of area reservation, etc.) of UME TABLE OF CONTENTS The control unit 4 reserves an area in the backup auxiliary storage device 10 (step 104). Next, the data copy unit 5 transfers the file G from the auxiliary storage device 1 to the backup auxiliary storage device 10.
Data of the above is copied (step 105). File rearrangement is completed by repeating a series of processes from the reading to the file area secured data copy while the data exists. Finally, the entire process is completed by copying from the backup auxiliary storage device 10 to the auxiliary storage device 1 in order from the beginning of the device (step 106). As a result, the files G, A, C, D, and B are secured in the order from the vicinity of VTOC, and the empty areas B and F become one empty area H.

The series of processing flow may be such that data reading and data acquisition are collectively performed and then data copying is performed. Further, in this example, the usage status is determined by the number of times of input / output, but it may be usage time.

[0013]

As described above, according to the present invention, based on numerical data such as file input or usage time,
By rearranging the file arrangement positions while maintaining the logical structure as it is, the files are arranged in the vicinity of the VTOC from the most frequently used one, so that the access time to the file is shortened. Further, since the operator does not have to create the JCL or the like, it is possible to prevent an error such as loss of a file due to a mistake in creation. Furthermore, the storage efficiency of files is also improved by unifying the empty areas at the rear of the device.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of an automatic file relocation device of the present invention.

FIG. 2 is an explanatory diagram illustrating operations before and after relocating a file in the automatic file relocating apparatus according to the present exemplary embodiment.

FIG. 3 is a flow chart diagram showing an example of an operation in the automatic file relocation apparatus of the present exemplary embodiment.

[Explanation of symbols]

 1 auxiliary storage device 2 control unit 3 monitoring unit 4 area control unit 5 data copy unit 6 setting unit 7 monitoring file unit 8 memory 9 keyboard 10 auxiliary storage device 51 auxiliary storage device before file relocation 52 for saving after file relocation Auxiliary storage

Claims (1)

[Claims] 1. An auxiliary storage device to be relocated according to the usage status of a file, a backup auxiliary storage device that saves a file in the auxiliary storage device for relocation, and the usage status thereof is monitored. A monitoring unit, an area control unit that manages the area of the auxiliary storage device and relocates files, and a data copy unit that transfers file data from the target auxiliary storage device to the backup auxiliary storage device, The aggregated monitoring is provided with a setting unit that sets the aggregation condition of the monitoring data, a monitoring file unit that stores the monitoring data including the usage status of each file, and a keyboard unit that inputs the aggregation condition of the monitoring data. Sort the data according to the frequency of use, rearrange the files according to the order, and save the data. A file automatic relocation device, characterized in that the relocation file stored in the evacuation auxiliary storage device is copied to the auxiliary storage device after being copied for each file and saved in the evacuation auxiliary storage device.