JPH05197500A - Device for automatically distributing file load - Google Patents

Abstract

PURPOSE:To automate the load distribution of a file. CONSTITUTION:Load information for a magnetic disk and the file is inputted through the use of a load information input means 12 which is added to an automatic file load distributing device 1, a parameter input means 11 refers to the inputted usage rate of the magnetic disk and the file and a rearrangement judging means 14 judges whether the rearrangement of the file inside the magnetic disk is necessary or not. When rearrangement is needed, the contents of the magnetic disk is inputted through the use of a magnetic disk contents input means 16, a rearrangement processing means 18 processes rearrangement and a rearrangement magnetic disk contents output means 19 outputs the arranged contents to the magnetic disk so as to distribute the load of the file.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic file load balancing apparatus, and more particularly, for each file created on a plurality of magnetic disks, the file rearrangement is judged from the load information of the magnetic disks and the files. The present invention relates to an automatic file load balancing device that allows files on a magnetic disk to be used efficiently.

[0002]

2. Description of the Related Art In recent years, it has been common to perform online processing and batch processing of files using a computer. However, in online processing, various files are used to extract more information and obtain effective information. Similarly, since many files must be used in batch processing of files and the files must be updated and read, it is inevitable that many files will be stored on the magnetic disk that stores the files. In the processing of files, file input / output operations for updating and reading many files are repeated, and the processing time is required to be shortened. However, in the information age, the system on the computer is added and changed every day, and many files are added to the magnetic disk, so many files with a large number of input / output operations concentrate on a specific magnetic disk. Even on one magnetic disk, files that have many I / O operations will be scattered, and with a magnetic disk having such a file arrangement, I / O wait time and magnetic disk head movement time are long. Often, the processing time increases significantly. However, the conventional technology can only output the load information of the magnetic disk and the file, and it is necessary to count the number of file input / output operations using this load information. The files with the most number of files are stored in order from the beginning on one magnetic disk to shorten the moving time of the magnetic disk head, and the files with the most I / O operations are distributed to multiple magnetic disks to shorten the I / O wait time for the magnetic disks. I was doing file relocation work such as.

[0003]

In the conventional file relocation work described above, the number of file input / output operations must be totaled from the magnetic disk and file load information to find a file with a large number of input / output operations. At that time, the usage rate of the magnetic disk, the moving time of the magnetic disk head, the input / output waiting time for the file, and the input / output waiting time for the magnetic disk must be extracted in units of seconds and a huge amount of data must be collected. There is a problem that the number of man-hours is large because it is necessary to judge the rearrangement of the file based on the total result. Also, based on the file relocation judgment information, all files on the magnetic disk that require file relocation are downloaded to another medium, the magnetic disk is initialized, the area for the relocated file is secured, and the file is re-downloaded. Since files have to be dropped from the medium and a large number of files have to be individually worked, there is a problem that the number of man-hours becomes large and the files cannot be recovered due to a mistake in sucking.

[0004]

SUMMARY OF THE INVENTION An automatic file load balancing apparatus of the present invention is an apparatus for automatically balancing the load on each file existing in a plurality of magnetic disks. Load information input means for inputting the load information, load information storage means for storing the load information input by the load information input means, and parameter information indicating a period for monitoring the load information and a load ratio of a file and a magnetic disk. Parameter input means for inputting, relocation determining means for determining the location of the file to be relocated from the load information stored in the load information storage means according to the parameter information input by the parameter input means, and the relocation determining means. Judgment result output means for outputting the result judged by the arrangement judgment means, and magnetic field for inputting the contents of the magnetic disk. The disk content input means, the magnetic disk content storage means for storing the magnetic disk content input by the magnetic disk content input means, and the relocation determination means based on the magnetic disk content stored in the magnetic disk content storage means. Relocation processing means for relocating the determined file, relocation magnetic disk content output means for outputting the contents of the magnetic disk relocated by the relocation processing means, and the magnetic disk content storage means And a magnetic disk content output means for evacuation that outputs the magnetic disk content for evacuation.

[0005]

In the present invention, the load information input means inputs the load information of the magnetic disk and the file, the load information storage means stores the load information of the magnetic disk and the file input by the load information input means, and the parameter input. The means inputs the parameter information indicating the period for monitoring the load information of the magnetic disk and the file and the load ratio of the file and the magnetic disk, and the relocation determining means stores the load information in the load information storage means according to the parameter information input by the parameter input means. The location of the file to be relocated is determined from the stored load information, the determination result output means outputs the result determined by the relocation determination means, and the magnetic disk content input means inputs the content of the magnetic disk, The disk content storage means stores the magnetic disk content input by the magnetic disk content input means. The relocation processing unit relocates the file determined by the relocation determination unit from the magnetic disk contents stored in the magnetic disk content storage unit, and the relocated magnetic disk content output unit relocates the magnetic field relocated by the relocation processing unit. The disk content is output, and the magnetic disk content output means for evacuation outputs the magnetic disk content stored by the magnetic disk content storage means for evacuation.

[0006]

FIG. 1 is a block diagram showing an embodiment of the present invention. In FIG. 1, 1 is an automatic file load balancing device, 2 is a parameter input device, 3 and 4 are first and second input devices, 5 and 6 and 7 are first, second and third output devices. is there. Further, 11 in the automatic file load balancing apparatus 1 is a parameter input means for inputting parameter information indicating a period for monitoring the load information and a load factor of the file and the magnetic disk, and 12 is load information for inputting the load information of the magnetic disk and the file. Input means 13, load information storage means for storing the load information input by the load information input means 12, and 14 parameter input means 11
Relocation determining means for determining the location of the file to be relocated from the load information stored in the load information storage means 13 according to the parameter information input by the, and 15 outputs the result determined by the relocation determining means 14. The determination result output means 16 for inputting is a magnetic disk content input means for inputting the content of the magnetic disk.

Reference numeral 17 is the magnetic disk content input means 16
A magnetic disk content storing means for storing the magnetic disk contents inputted by the relocation processing means 18 for rearranging the file judged by the relocation judging means 14 from the magnetic disk contents stored in the magnetic disk content storing means 17. , 19 are reallocation magnetic disk contents output means for outputting the contents of the magnetic disks reallocated by the reallocation processing means 18, and 20 is the magnetic disk contents storage means 1.
The magnetic disk content output means for evacuation outputs the magnetic disk content stored in step 7 for evacuation.

The parameter input device 2 loads the medium in which the parameter information for designating the load period of the magnetic disk and the file and the monitoring period of the load information of the magnetic disk and the file is stored, to thereby realize the automatic file load balancing device. Input the parameter information in 1. The parameter input device 2 is composed of, for example, a floppy disk device, a magnetic disk device, a card reading device and the like. The input device 3 inputs the load information of the magnetic disk and the file to the file automatic load distribution device 1 by loading the magnetic disk and the medium in which the load information of the file is stored. The input device 3 is composed of, for example, a magnetic tape device, a magnetic disk device, or the like. The input device 4 inputs the content of the magnetic disk to the file automatic load distribution device 1 by loading the medium in which the content of the magnetic disk is stored, and after the content of the magnetic disk is input, the loading is canceled and the output device 6 and Become. The input device 4 is composed of a magnetic disk device.
The output device 5 prints out the file relocation information determined by the automatic file load balancing device 1. The output device 5 is composed of, for example, a printer device. The output device 6 stores the contents of the magnetic disk relocated by the automatic file load balancing device 1. The output device 6 is the same device as the input device 4 and is composed of a magnetic disk device. The output device 7 stores the contents of the magnetic disk input by the automatic file load distribution device 1 as they are for saving. The output device 7 is composed of, for example, a magnetic tape device, a magnetic disk device, or the like.

On the other hand, the parameter input means 11 inputs the parameter information input by the parameter input device 2. The load information input means 12 inputs the load information of the magnetic disk and the file input by the input device 3.
The load information storage means 13 stores the load information of the magnetic disk and the file input by the load information input means 12, and transfers it to the rearrangement determination procedure 14. The relocation determination unit 14 analyzes the load information of the magnetic disk and the file stored in the load information storage unit 13 according to the parameter information input by the parameter input unit 11, determines the file relocation, and determines the file relocation. The rearrangement information is passed to the determination result output means 15 and the rearrangement processing means 18. The determination result output unit 15 receives the file relocation information determined by the relocation determination unit 14, and outputs the output device 5
Output to.

The magnetic disk content input means 16 inputs the magnetic disk content input by the input device 4. The magnetic disk content storage means 17 stores the magnetic disk content input by the magnetic disk content input means 16 and transfers it to the relocation processing means 18 and the evacuation magnetic disk content output means 20. The relocation processing unit 18 performs a file relocation process on the magnetic disk content stored by the magnetic disk content storage unit 17 according to the file relocation information determined by the relocation determination unit 14, and the magnetic field after the file relocation is executed. The disk contents are delivered to the rearranged magnetic disk contents output means 19. The relocated magnetic disk contents output means 19 receives the contents of the magnetic disks relocated by the relocation processing means 18, initializes the medium loaded in the output device 6, and then outputs the contents. Also,
The evacuation magnetic disk content output means 20 receives the magnetic disk content stored in the magnetic disk content storage means 17 and outputs it to the output device 7.

FIG. 2 is a flow chart for explaining the operation of FIG. 1 and shows the processing of the automatic file load balancing apparatus of the embodiment shown in FIG.

Next, the operation of the embodiment shown in FIG. 1 will be described with reference to FIG. First, the parameter input device 2 is loaded with a medium in which parameter information designating the load information monitoring period for magnetic disks and files and the load factor for magnetic disks and files is stored, and the input device 3 is loaded with magnetic disk and file load information. Load the media containing the. When the automatic file load balancing apparatus 1 is activated, first, the parameter input unit 11 inputs the parameter information from the parameter input device 2 and transfers it to the reallocation determination unit 14 (step 3).
0). At this time, the parameter information stored in the medium loaded in the parameter input device 2 specifies the period for monitoring the load information of the magnetic disk and the file as the monitoring start date and monitoring end date, and And the file load rate are specified as the maximum value of the magnetic disk device usage rate, the maximum value of the magnetic disk input / output wait times, the maximum value of the file input / output wait times, and the maximum value of the magnetic disk head movement distance. The parameter information is input to the parameter input / output unit 11 in the above format.

Next, the load information input means 12 waits until the load information of the magnetic disk and the file is input from the input device 3 (step 31). This load information input means 1
When the load information of the magnetic disk and the file is input to the input device 3 from the input device 3, the load information is passed to the load information storage means 13, and the load information storage means 13 stores the load information of the magnetic disk and the file (step 32). Subsequently, the read-back value judgment means 14 receives the parameter information passed from the parameter input means 11, refers to the load information of the magnetic disk and the file stored in the load information storage means 13, and determines whether the file rearrangement of the magnetic disk is necessary. And transfers the rearrangement determination result information to the determination result output means 15 and the rearrangement processing means 18 (step 33).

At this time, the relocation determination means 14 refers to the load information of the magnetic disk and the file stored in the load information storage means 13 and the parameter information passed from the parameter input means 11, and the magnetic disk in the parameter information is referred to. And the information corresponding to the monitoring period of the file load information is totaled. The items to be aggregated are the usage rate of the magnetic disk device, the usage rate of the file, the number of times of waiting for magnetic disk input / output, the number of times of waiting for file input / output, the moving distance of the magnetic disk head, and the number of times of file input / output. Relocation processing information that compares the total items that exceed the maximum value indicated by the parameter value, and if there is an item that exceeds the parameter value, file relocation processing is necessary,
Outputs the file relocation information indicating the method of file relocation. When the magnetic disk head movement distance exceeds the maximum value, the file relocation information is such that file relocation is performed such that the file storage position in the corresponding magnetic disk is changed in the order of file input / output count. When the device usage rate exceeds the maximum value, the file relocation is performed so that the file with high file usage rate is moved to the disk with low magnetic disk usage rate. If the number of magnetic disk I / O waits exceeds the maximum value, relocate the file so that a file with a large number of file I / O waits is moved to a magnetic disk with a small number of magnetic disk waits. The file storage method is the same as when the magnetic disk head movement distance exceeds the maximum value. The above-mentioned file relocation information is the judgment result output means 1
5 and the relocation processing means 18. In addition, when the number of file input / output waits exceeds the maximum value, the relocation determining means 14 needs to divide the corresponding file and disperse it into a plurality of files, but since it affects the corresponding file use program, it outputs warning information, Even when it is outside the load information monitoring period, warning information is output and passed to the judgment result output means 15.

Next, the judgment result output means 15 inputs the file relocation information or the warning information from the relocation judgment means 14 and passes it to the output device 5, and this output device 5 outputs the file relocation information or the warning information. Yes (Step 3
4). Subsequently, the rearrangement judging means 14 judges from the warning information whether it is outside the load information monitoring period (step 35),
If it is outside the monitoring period, the automatic file load balancing apparatus 1 finishes the file load balancing process, and if it is within the monitoring period, it judges from the relocation processing information whether the file reallocation is necessary (step 36). If it is not necessary to relocate the file, the control is returned to step 31 in the state of waiting for the load information input of the magnetic disk and the file. When file relocation is necessary, the magnetic disk content input means 16 inputs the content of the magnetic disk from the input device 4, and the input magnetic disk content is stored in the magnetic disk content storage means 17 and the relocation processing means. The contents of the magnetic disk are passed to 18 and the evacuation magnetic disk contents output means 20 (step 37).
The evacuation magnetic disk content output means 20 outputs the magnetic disk content delivered from the magnetic disk content storage means 17 to the output device 7 for evacuation (step 38).

Subsequently, the relocation processing means 18 relocates the magnetic disk contents stored in the magnetic disk content storage means 17 according to the file relocation information passed from the relocation determination means 14, and the relocated magnetic disk The contents of the rearranged magnetic disk are transferred to the contents output means 19 (step 39). Further, the relocation processing means 18 checks whether the files on the magnetic disk of the magnetic disk content storage means 17 and the relocated magnetic disk content output means 19 are leaked (step 40). If there is a file leak, the automatic file load balancing apparatus 1 finishes the file load balancing process, and if there is no file leak, the relocation magnetic disk content output means 19 causes the relocation processing means 18 to The contents of the rearranged magnetic disk are received and the medium loaded in the output device 6 is initialized and then output (step 41). Then, the output device 6 and the input device 4 are subjected to file relocation processing using the same medium.
After the reallocation, the file automatic load distribution processing device 1 ends the file load distribution processing.

[0017]

As described above, according to the present invention, the load information input means inputs the load information of the magnetic disk and the file, and the load information storage means inputs the load information of the magnetic disk and the file input by the load information input means. The parameter input means inputs the parameter information indicating the period during which the load information of the magnetic disk and the file is monitored and the load factor of the file and the magnetic disk, and the relocation determining means changes the parameter information input by the parameter input means. Therefore, the location of the file to be relocated is determined from the load information stored in the load information storage means, the determination result output means outputs the result determined by the relocation determination means, and the magnetic disk content input means determines the magnetic disk contents. Content is input, and the magnetic disk content storage means inputs the magnetic disk content input by the magnetic disk content input means. The contents determined by the relocation determining unit are relocated from the magnetic disk contents stored in the magnetic disk content storage unit by the relocation processing unit, and the relocation magnetic disk content output unit is relocated by the relocation processing unit. The magnetic disk contents rearranged by the magnetic disk contents output means outputs the magnetic disk contents stored by the magnetic disk content storage means for saving. You can automatically relocate the file in the magnetic disk by simply inputting and the parameter information that indicates the load information monitoring period and the load ratio of the file and the magnetic disk. This has the effect of significantly reducing the number of man-hours required for the work.

Further, it is possible to prevent that the file cannot be restored due to a mistake in the file relocation work, so that the reliability of the file relocation work can be improved.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a flowchart for explaining the operation of FIG.

[Explanation of symbols]

 1 File Automatic Load Balancing Device 2 Parameter Input Device 3, 4 Input Device 5-7 Output Device 11 Parameter Input Means 12 Load Information Input Means 13 Load Information Storage Means 14 Rearrangement Judgment Means 15 Judgment Result Output Means 16 Magnetic Disk Content Input Means 17 Magnetic Disk Content Storage Means 18 Rearrangement Processing Means 19 Rearranged Magnetic Disk Content Output Means 20 Evacuation Magnetic Disk Content Output Means

Claims (1)

[Claims] 1. A load information input means for inputting load information of a magnetic disk and a file in an apparatus for automatically load-balancing each file existing in a plurality of magnetic disks, and the load information input means. Load information storage means for storing the load information input by the parameter input means, parameter input means for inputting parameter information indicating a period for monitoring the load information and load rates of files and magnetic disks, and the parameter input means. The relocation determining means for determining the location of the file to be relocated from the load information stored in the load information storing means according to the parameter information, and the determination result output for outputting the result determined by the relocation determining means Means, a magnetic disk content inputting means for inputting the content of the magnetic disk, and a magnetic disk content inputting means Magnetic disk content storage means for storing the magnetic disk content input by the stage, and relocation processing means for relocating the file determined by the relocation determination means from the magnetic disk content stored in the magnetic disk content storage means. And a relocation magnetic disk content output means for outputting the content of the magnetic disk whose files have been relocated by the relocation processing means, and an evacuation means for outputting the magnetic disk content stored in the magnetic disk content storage means for evacuation. An automatic file load balancer comprising a magnetic disk content output means.