JPS63204562A - Floppy disk driving device - Google Patents

Abstract

PURPOSE:To prolong the lift of a floppy disk (FD) and to efficiently utilize an FD by forming a bit of information relating to the deterioration of an FD data region and changing the data region for storing prescribed data based on the information. CONSTITUTION:A control part 51 includes a timer 55, and when a system is led, the control part 51 refers the timer 55 and checks whether prescribed time has elapsed or not. When the time deterioration the data region has elapsed, a driving controller 53 is controlled to read out data from the data region storing the data at present and stores the read data in a novel data region. Since the data region storing the prescribed data is successively changed, the life of the FD can be prolonged and the FD can be efficiently utilized. Since the prescribed data can be stored in an undeteriorated data region, programs and data can be prevented from being changed and the reliability of the system can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Objective of the Invention (Field of Industrial Application)] This invention 1 relates to an FDD (floppy disk drive) device.

(Prior Art) In a conventional FDD device, for example, a program to be loaded into the main memory of a CPU is fixedly stored in a predetermined area of an FD (floppy disk). For this reason, the above-mentioned area is accessed many times, and the above-mentioned area of the FD deteriorates due to wear, resulting in a problem that the program becomes abnormal or even if it does not go that far, the reliability decreases. In addition, due to wear in the above region, the life of the entire FD is shortened, resulting in a disadvantage that the FD cannot be used efficiently.

(Problems to be Solved by the Invention) As mentioned above, in the conventional FDD device, programs and data are fixedly stored in a predetermined area.
In particular, the storage area for programs and data that are particularly troublesome to use deteriorates due to wear, which not only reduces system reliability but also shortens the lifespan of the FD by Ia, making it impossible to use the FD efficiently. . The present invention has been made to eliminate such drawbacks of the conventional FDD device, and its purpose is to improve system reliability, extend the life of the FD, and make the FD more efficient. The objective is to provide an FDD device that can be used for many purposes.

[Structure of the Invention and Means for Solving the Problems] The present invention provides a deterioration information creation means for creating information regarding deterioration of a data area of a floppy disk, and a data area for storing predetermined data based on the information regarding the deterioration. , and if it detects that it should be changed,
a data moving means that transfers the predetermined data from the data area where it is currently stored to another data area; and when the predetermined data is accessed, outputs the address of the data area where the predetermined data is stored; The FDD device is provided with address conversion means involved in accessing the above-mentioned predetermined data.

(Function) According to the above configuration, since the data area in which predetermined data is stored is changed one after another, the life of the FD can be extended and the FD can be used efficiently.

Since the predetermined data can be stored in a data area that has not been degraded, it is possible to prevent programs and data from changing, thereby improving the reliability of the system.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of a computer system using the FDD device of the present invention. In the figure, reference numeral 1 denotes a CPU that collectively controls each part based on a program in the main memory 2. The CPU 1 sends and receives data via the I10 boats 31 to 3o. The CPU 1 is connected to an FDD device 5 via an FDD interface 4. The FDD device 5 includes a control section 51 that controls data access based on control signals etc. given from the CPU 1 via the FDD interface 4, and a drive controller that controls the drive of the floppy disk 52 under the control of this control section 51. 53, an address conversion section 54 which converts and outputs an address for accessing data on a floppy disk 52 under the control of the control section 51, and a floppy disk 52 in which data is stored. The control unit 51 also includes a timer 55, and when the system starts up, the control unit 51 refers to the timer 55 to check whether a predetermined period of time has elapsed, and checks the data area of the floppy disk 52 where data is stored. Detects whether the time has come for deterioration. If it is time for the data area to deteriorate, the drive controller 53 is controlled to read out the data from the data area (101 in FIG. 2 figure 1
02). Along with this, the address conversion unit 54
Then, a translation address is set so that when an address accessing data area 101 arrives, data area 102 is accessed. From now on, CPt, 11 is
When an address is sent to access the data area 101 of FIG. 2, the address converter 54 outputs the address so that the data area 102 of the floppy disk 52 is accessed, and the target data is Access is possible. The control unit 51 monitors the predetermined time again using the timer 55 from the time when the data storage area is changed as described above, and when the predetermined time has elapsed, moves the data from the data area 102 to the data area 16.103, and transfers the data to the address conversion unit. 54, a translation address is set so that when the address for accessing the data area 101 arrives, the data area 103 is accessed. Below, the control unit 5
1 continues the same operation as above. Data areas vj, 101 to data areas 102, 103 .・・・
. . . However, even if the CPU 1 outputs an address for accessing data in the data area 101, the address conversion unit 54 outputs the address of the data area where the data is stored. Therefore, the CPU
1 can operate regardless of changes in the data area provided in the FDD equipment 5, and there is no need to change the software.

In this manner, in this embodiment, the timer 55 functions as the deterioration information creation means 200 that creates information regarding the deterioration of the data area of the floppy disk 52, and the control unit
1 detects whether the data area storing the predetermined data should be changed based on information regarding deterioration, and if it is detected that the data area should be changed, transfers the predetermined data from the data area where it is currently stored to another data area. Data transfer means 3
00, and the address converter 54 functions as an address converter 400 that outputs the address of the data area in which the predetermined data is stored and is involved in accessing the predetermined data. According to the FDD device @ 5 having such a configuration, the data area in which data is stored is moved according to the deterioration of the data area, that is, each time a predetermined time elapses, and the floppy disk 52 is completely deteriorated. to ensure that it does not become unusable. Therefore, each area of the floppy disk 52 can be used on an average basis until it completely deteriorates, and it can be used efficiently, and it is possible to prevent data from being lost or changed due to complete deterioration of the floppy disk. system reliability can be improved without

In this embodiment, each means is provided inside the FDD device 5.
The two digits may be provided externally. Moreover, although the deterioration of the data area of the floppy disk 52 is detected by the passage of a predetermined time, the deterioration may be detected by, for example, the number of accesses to the data area.

[Effects of the Invention] As explained above, according to the present invention, the data areas are moved one after another based on the deterioration information of the data area, so the lifespan of the floppy disk can be extended, and the floppy disk can be used efficiently. Furthermore, since data can be stored in a data area that has not been degraded, data changes can be prevented and system reliability can be improved.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a computer system employing an embodiment of the present invention, and FIG. 2 is a block diagram showing movement of data areas. 5... FDD device@51... Control unit 52... Floppy disk 53... Drive controller 54... Address conversion units 101 to 103... Data area 200... Deterioration information creation means 300. ...Data transfer means 400...Address conversion means agent Patent attorney Noriyuki Chika Yudo Sanno −

Claims (1)

[Claims] a deterioration information creation means for creating information regarding deterioration of a data area of a floppy disk; and detecting whether a data area storing predetermined data should be changed based on the information regarding the deterioration, and when it is detected that the data area should be changed, changing the predetermined data. data moving means for transferring data from a data area where the data is currently stored to another data area; 1. A floppy disk drive device comprising: address translation means involved in accessing the floppy disk drive device.