JP5652780B2 - Information processing apparatus and access control method - Google Patents

Description

The present invention, when failure has occurred operates in the storage device, relates to an information processing apparatus and the access control how to perform the repair of the files in the storage device.

  An information processing apparatus such as a PC (Personal Computer) is equipped with, for example, an HDD (Hard Disc Drive) or the like as a storage device capable of storing a large-capacity file. Therefore, malfunction is likely to occur. If a file is written when a malfunction occurs in the HDD, the file in the HDD may be destroyed. However, the file is written by the OS (Operating System) without the user's intention. Sometimes. Therefore, when an operation failure occurs in the HDD, starting up the OS to save the file in the HDD (for example, backup disclosed in Patent Document 1) itself leads to destruction of the file in the HDD. There is a fear.

JP 2006-92553 A

The present invention has been made in view of the above circumstances, when a failure occurs operated in the storage device, by preventing writing to the file storage device, and Turkey to prevent the destruction of the file in the storage device With the goal.

To achieve the above object, a first aspect of the present invention, independent access to the operation of the user against the file stored in the storage means, the operating system is started after starting the output system the information processing apparatus occurring configuration, when the malfunction of the storage means is detected, and activating means for restarting the information processing apparatus, the information processing by the basic input output system after re-activation by the activation means The operating system is configured to create a difference writing area for writing a difference file, which is a difference between the file stored in the storage unit and the updated file, in a storage unit different from the storage unit. and area creation means to be executed before start of the output system by the information processing after the restart by the activation means It is composed of, and access control for prohibiting the writing of the file to the storage unit, when the malfunction has an access to write the file to the detected the storage means, the differential write area the difference file Access control means for starting access control before starting the operating system .

A second aspect of the present invention, independent access to the operation of the user against the file stored in the storage means, access control information processing device performs generated by the operating system that is started after starting the output system the method, when a malfunction of the storage means is detected, and restarting step of restarting the information processing device, as the basic control steps by output system after the restart by the restart step, the Before starting up the operating system, control for creating a differential writing area for writing a differential file, which is a difference between a file stored in the storage unit and an updated file, in a storage unit different from the storage unit and area creation steps performed to control by the basic input output system after the restart step As step, and access control for prohibiting the writing of files to the storage means, when there is an access to write the file to the storage means for operation failure is detected, the difference file to the differential write area And an access control step for starting access control to control writing before starting the operating system .

  According to the present invention, when a malfunction occurs in the storage device, it is possible to prevent the file in the storage device from being destroyed by preventing writing to the file in the storage device.

It is a block diagram which shows the structural example of PC concerning one Embodiment of this invention. It is a flowchart which shows the operation example of PC which concerns on one Embodiment of this invention.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments (embodiments) for carrying out the present invention will be described in detail with reference to the accompanying drawings.

  A configuration example of a PC which is an embodiment of the information processing apparatus of the present invention will be described with reference to FIG. FIG. 1 is a block diagram showing the main configuration of the PC of this embodiment.

  As illustrated in FIG. 1, the PC 1 includes a CPU (Central Processing Unit) 10, an HDD 11 (an example of a storage unit), a RAM (Random Access Memory) 12, and a ROM (Read Only Memory) 13. Although not shown, the PC 1 includes an interface (for example, a USB port) to which an external storage device 2 (an example of another storage unit, such as a USB memory or an external HDD) can be connected. Although not shown, the PC 1 includes an input device (for example, a keyboard and a mouse) that receives user operations and an output device (for example, a display and a speaker) that notifies the user of predetermined information. .

  The CPU 10 functions as an activation unit 14, a connection detection unit 15, an area creation unit 16, and an access control unit 17. Details of these means will be described later in the description of the operation example shown in FIG.

  The HDD 11 stores an OS 18. Although not shown, the HDD 11 stores applications and various files in addition to the OS 18.

  The RAM 12 is a work area used when the CPU 10 executes various programs.

  The ROM 13 stores a BIOS (Basic Input Output System) 19 and a resident program 20. The resident program 20 here is a program for monitoring the operation of the HDD 11 and detecting malfunction.

  An example of the operation of the PC 1 configured as described above will be described with reference to FIGS. FIG. 2 is a flowchart illustrating an operation example of the PC 1.

  First, when the user turns on the power of the PC 1, the CPU 10 functions as the activation unit 14 and performs activation in the normal activation mode (S1). The normal activation mode is a mode in which the OS 18 is normally activated by reading and executing the BIOS 18 from the HDD 11 after the CPU 10 reads and executes the BIOS 19 from the ROM 19. In other words, this is a mode in which the OS 18 can read and write files on the HDD.

  Next, the CPU 10 reads out and executes the resident program 20 from the ROM 19 to start monitoring the operation of the HDD 11 (S2).

  As a result of the monitoring, if a malfunction of the HDD 11 is detected (S3 / YES), the CPU 10 functions as the starting means 14 and starts restarting the PC 1 (S4). From S4 to S7, the OS is not started, and the operation by the BIOS 19 is executed.

  Here, the CPU 10 functions as the connection detection unit 15 and detects whether the external storage device 2 is connected (attached) to the PC 1 (S5).

  If the external storage device 2 is not connected as a result of the detection (S5 / NO), the CPU 10 requests the user to connect the external storage device 2 to the PC 1 (S6). For example, in an output device (not shown) controlled by the CPU 10, a notification (for example, screen display or audio output) is issued to request the user to connect the external storage device 2 to the PC 1.

  If the external storage device 2 is connected as a result of the detection (S5 / YES), the CPU 10 functions as the region creation means 16 and writes an area for writing a difference file to the external storage device 2 (hereinafter referred to as a difference). (Referred to as a writing area) is created (S7). The difference file is a file in which only differences from a predetermined file stored in the HDD 11 are collected (a file indicating a difference between the file stored in the storage unit in the HDD 11 and the updated file). That is, a difference file between the HDD 11 and the external storage device 2 can be created without writing to the HDD 11 by creating a difference file of the HDD 11 and writing the difference file in the difference writing area of the external storage device 2. By combining with the file, it can be handled as a full file.

  Next, the CPU 10 functions as the activation unit 14 and performs activation in the differential activation mode (S8). In the differential activation mode, when the CPU 10 functions as the access control means 17, access (write access) for writing to a file in the HDD 11 is prohibited, and only access (read access) for reading a file from the HDD 11 is prohibited. Is a mode in which the OS 18 is activated by being controlled so as to be permitted. In other words, it is a mode in which the OS 18 can only read the HDD file. In this differential activation mode, the CPU 10 functions as the access control unit 17 and changes the access destination of the write access to the differential write area created in the external storage device 2. As a result, the file to be written to the HDD 11 is written to the external storage device 2 as a difference file. Therefore, after booting in the differential boot mode, writing by the OS 18 that is not intended by the user (an example of access that does not depend on the user's operation) is performed not on the HDD 11 but on the external storage device 2. The OS 18 operates by handling the file read from the HDD 11 and the difference file read from the external storage device 2 as a full file.

  Next, the CPU 10 prompts the user to automatically save the file in the HDD 11 to the external device or save it to the external device (S9). The external device may be, for example, the external storage device 2 or an information processing device or a storage device that can be connected to the PC 1 by either wired or wireless. Further, the user is prompted, for example, by a notification (for example, screen display or audio output) that prompts the user to save a file in the HDD 11 to a predetermined external device in an output device (not shown) controlled by the CPU 10. ) Is performed. This S9 is a supplementary operation.

  As described above, according to the present embodiment, when an operation failure occurs in a storage device such as an HDD, an operation failure occurs by changing the write destination for the file in the storage device to an external storage device. Writing to the storage device can be prevented. Therefore, it is possible to prevent the destruction of the file in the storage device in which the malfunction has occurred.

  In the above description of the embodiment, the HDD has been described as an example of the storage unit.

  As mentioned above, although embodiment of this invention was described, it is not limited to the said embodiment, A various deformation | transformation is possible in the range which does not deviate from the summary.

  For example, the operation in the above-described embodiment can be executed by hardware, software, or a combined configuration of both.

  When executing processing by software, a program in which a processing sequence is recorded may be installed and executed in a memory in a computer incorporated in dedicated hardware. Or you may install and run a program in the general purpose computer which can perform various processes.

  For example, the program can be recorded in advance on a hard disk or a ROM (Read Only Memory) as a recording medium. Alternatively, the program is stored on a removable recording medium such as a CD-ROM (Compact Disc Read Only Memory), an MO (Magneto Optical) disc, a DVD (Digital Versatile Disc), a USB (Universal Serial Bus) memory, a magnetic disc, and a semiconductor memory. It is possible to store (record) temporarily or permanently. Such a removable recording medium can be provided as so-called package software.

  The program may be wirelessly transferred from the download site to the computer in addition to being installed on the computer from the removable recording medium as described above. Or you may wire-transfer to a computer via networks, such as LAN (Local Area Network) and the internet. The computer can receive the transferred program and install it on a recording medium such as a built-in hard disk.

  In addition to being executed in time series in accordance with the processing operations described in the above embodiment, the processing capability of the apparatus that executes the processing, or a configuration to execute in parallel or individually as necessary Is also possible.

1 PC
2 External storage device 10 CPU
11 HDD
12 RAM
13 ROM
14 Start-up means 15 Connection detection means 16 Area creation means 17 Access control means 18 OS
19 BIOS
20 Resident program

Claims (5)

Independent access to the user's operation that pair to a file stored in the storage means, an information processing apparatus caused by the operating system that is started after starting the output system,
Starting means for restarting the information processing apparatus when a malfunction of the storage means is detected ;
A differential writing area for writing a differential file that is a difference between a file stored in the storage unit and an updated file, which is configured by information processing by the basic input / output system after restarting by the startup unit , Area creating means for executing control to create in a storage means different from the storage means before starting the operating system ;
Access control for prohibiting writing of a file to the storage means, and access for writing a file to the storage means in which an operation failure is detected, which is constituted by information processing by the basic input / output system after restarting by the starting means Access control means for starting the operating system before starting the operating system, the access control for controlling the differential file to be written to the differential writing area,
An information processing apparatus comprising: A connection detecting means for detecting a connection of the other storage means to the information processing apparatus when an operation failure of the storage means is detected;
2. The information processing according to claim 1, wherein when the connection detection unit does not detect the connection of the other storage unit, the information processing unit requests the user to connect the other storage unit to the information processing apparatus. apparatus. The access control means includes
When there is an access to read a file to the storage unit in which an operation failure is detected, the file is read from the storage unit and the differential file is read from the differential writing area. The information processing apparatus according to claim 1 or 2.   When a malfunction of the storage unit is detected and writing of the file to the storage unit is prohibited by the access control unit, the file stored in the storage unit is automatically evacuated to a predetermined device. The information processing apparatus according to claim 1, wherein the information processing apparatus prompts the user to retreat to a predetermined apparatus. Independent access to the user's operation that pairs to the stored files in the storage means, an access control method information processing apparatus performs generated by the operating system that is started after starting the output system,
A restarting step of restarting the information processing apparatus when a malfunction of the storage means is detected ;
As a control step by the basic input / output system after restarting by the restarting step , a differential writing area for writing a differential file that is a difference between the file stored in the storage means and the updated file , An area creation step executed before the operating system is activated to create control in a storage means different from the storage means ;
When the basic input / output system controls after the restarting step, there are access control for prohibiting file writing to the storage means and access to write a file to the storage means in which an operation failure is detected. And an access control step for starting access control for controlling the differential file to be written in the differential writing area before starting the operating system ,
An access control method comprising:

Images