JP2003122647A - Information processor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information processor where the contents of an RAM disk on a main storage means can be prevented from being erased even when a power source is unintentionally interrupted due to a failure or the like. SOLUTION: An OS program stored in a secondary storage device 2 and the contents of an RAM disk are loaded to a main storage means 3 when the information processor is started, and the changed RAM disk contents obtained by adding the executed result of the OS program to the RAM disk contents are stored in the main storage means 3, and the changed RAM disk contents stored in the main storage means 3 are stored in the secondary storage device 2 at the time of detecting failure.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of restoring the information processing apparatus 1 when an abnormality occurs, and more particularly to a method of restoring a RAM disk.

[0002]

2. Description of the Related Art In the information processing apparatus 1, an HDD is considered as a device for storing files.
In the case of DD, although the contents are not erased by reset or the like, there is a drawback that the access is slow. Therefore,
A RAM disk has been devised in which the OS and programs are arranged and a part of the main memory that can be accessed at high speed can be treated as a file storage location. However, in the case of a RAM disk, the information processing apparatus 1 is powered off or reset. , There was a problem that the data is erased.

As one of the methods for solving this, for example, there is a conventional medium environment updating device described in JP-A-9-244934. FIG. 22 is a block diagram of this conventional medium environment updating apparatus. In the figure, reference numeral 51 denotes a medium environment updating device realized by a computer program, and 52.
Is a memory card, and 53 is a RAM disk. In the memory card 52 and the RAM disk 53, information management units 21 and 31 for managing respective storage areas and managing update management flags for managing environment construction information (system version information) and storage information migration information. Is provided.

In the medium environment updating device 51, a medium management unit 61 for managing the environment of the mounted memory card 52 and RAM disk 53, the update status thereof, stored information, and the like, and the processing in the medium management unit 61. Update management flag setting unit 6 that generates an update management flag indicating the execution status of
2, and a process distribution unit 63 that performs a stop check process at the time of restart after the process is interrupted and distributes required subsequent processes,
The medium management unit 61 includes a process interruption detection unit 64 that detects interruption of processing, and a main control unit 15 that controls activation and execution of the units 61 to 64. The medium management unit 61
Medium evaluation unit 91, medium initialization unit 92, information conversion processing unit 9
3 and an information transfer unit 94.

In the example of FIG. 22, when a new environment of the memory card 52 is transferred to the RAM disk 53, a checkpoint is provided in the processing, and each time the update processing to the memory card 52 and the RAM disk 53 is completed, The current state is written in the nonvolatile information management units 71 and 81 in the memory card 52 and the RAM disk 53. When the information processing apparatus 1 is restarted due to an unexpected power failure or a failure of the information processing apparatus 1, the work state before the power is cut off is known from the information of the information management units 71 and 81. Is something that can be done.

[0006]

As described above, in the conventional medium environment updating apparatus, each time the updating process for the memory card 52 and the RAM disk 53 is completed, the nonvolatile memory in the memory card 52 and the RAM disk 53 is changed. Although the current state is written in the information management units 71 and 81, the information from the previous writing to the next writing, that is, the memory card 52 and RA being executed, may be written due to an unexpected power failure such as a failure.
There is a problem that a part of the contents of the M disc 53 is erased.

The present invention has been made in order to solve the above problems, and the information processing apparatus in which the contents of the RAM disk in the main storage means 3 are not erased even if the power is suddenly cut off due to a failure or the like. The purpose is to provide.

[0008]

According to a first aspect of the present invention, a secondary storage means in which an OS program and a RAM disk are stored, the OS program and the RAM of the RAM disk.
An OS file loading means for loading the contents of the disk at startup, and the RA loaded by the OS file loading means for the execution result executed by the OS program loaded by the OS file loading means.
Main memory means for storing the contents of the modified RAM disk added to the contents of the M disk; failure detection means for detecting a failure;
When the failure detection means detects a failure, the storage means is provided for saving the contents of the modified RAM disk stored in the main storage means in the RAM disk of the secondary storage means.

A second aspect of the present invention is a RAM disk storage unit for storing the modified RAM disk contents stored in the main storage unit, and the modified RAM disk contents stored in the RAM disk storage unit for the main storage unit. RAM disk restoring means for loading the modified RAM disk contents stored in the main storage means upon detection of a failure by the failure detecting means.
It is stored in the AM disk storage means.

A third aspect of the invention is to load the modified RAM disk content stored in the RAM disk storage means into the main storage means and load the RAM disk content into the main storage means by the OS file loading means. RAM for overwriting the contents of the above modified RAM disk
It is provided with a disk restoring means.

According to a fourth aspect of the present invention, an OS file loading means for loading the OS program stored in the secondary storage means into the main storage means at startup, and the modified RAM disk stored in the RAM disk storage means. RAM disk restoring means for loading the contents into the main storage means at the time of startup is provided.

A fifth aspect of the present invention loads the modified RAM disk contents stored in the RAM disk storage into the main storage means, or loads the contents of the RAM disk stored in the secondary storage means into the main storage means. The RAM disk restoring means is provided with a flag indicating whether to load the storage means, and the RAM disk restoring means loads the changed RAM disk content or the RAM disk content into the main memory means at the time of start-up based on the flag.

A sixth aspect of the present invention displays the flag for loading the contents of the RAM disk into the main memory during the read / write operation to the contents of the RAM disk, and the read / write operation to the contents of the RAM disk. At the end, the RAM disk operating means for displaying the flag for loading the changed RAM disk contents into the main memory means is provided.

A seventh aspect of the present invention is a storage means having a compression means for compressing the contents of the modified RAM disk stored in the main storage means, and a restoration means for restoring the contents of the modified RAM disk compressed by the compression means. RA with
And M disk restoring means.

According to an eighth aspect of the present invention, there is provided a RAM disk area constituted by a file management information block area in which management information of a file in which the changed RAM disk contents are stored and a file block area in which file data is recorded. A main storage means, a file management information block area, and an effective file management information block in which management information of a file in which the contents of the modified RAM disk are stored from the file block area and the file data are recorded. A check means for searching a block, and a saving means for saving the valid file management information block and the valid file block searched by the checking means in the RAM disk saving means; and a saving means saved in the RAM disk saving means. Effective file management To restore the contents of the RAM disk on the basis of the distribution block and the valid file block, RA with disk restoration means for loading to the main memory means
And M disk restoring means.

A ninth aspect of the present invention comprises a small capacity battery that supplies electricity for a certain period of time, wherein the failure detecting means detects a power failure, and the storage means detects a power failure by the failure detecting means. The contents of the modified RAM disk stored in the main storage means are stored in the RAM disk of the secondary storage means based on the electricity supply from the small capacity battery for a certain period of time.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiment 1. Hereinafter, the first embodiment will be described with reference to the drawings. FIG. 1 is a configuration diagram of the information processing device 1 according to the first embodiment. In FIG. 1, 1 denotes an information processing device and 2 denotes a secondary storage device which is a secondary storage means. The secondary storage device 2 has an OS file 4 in which an OS program is stored. OS file 4 is the OS
OS area 6 in which the program itself is stored, and RAM
It is composed of a RAM disk area 7 in which a disk is stored. Further, 3 is a main storage means, and the contents of the OS area 6 and the RAM disk area 7 are expanded in the main storage means 3 when the information processing apparatus 1 is operating. That is, the OS program and RA stored in the OS area 6 of the secondary storage device 2
The contents of the RAM disk stored in the M disk area 7 are stored in the OS area 12 and the RAM disk area 13 of the main storage means 3, respectively.

FIG. 1 shows an example in which the OS 8 is installed at a position different from the main storage means 3 for ease of explanation. The OS 8 includes a failure detection unit 9 that detects a failure of the information processing apparatus 1 and a RAM disk area 1 on the main storage unit 3.
3 storage means 10 for storing the contents of the RAM disk. Reference numeral 11 denotes an OS file loading means for loading the contents of the OS file 4 on the secondary storage device 2 on the main storage means 3.

Next, the operation of the information processing apparatus 1 at the time of starting will be described. FIG. 2 is an explanatory diagram showing an operation at the time of starting the information processing device 1. When the power of the information processing apparatus 1 is turned on or the H / W reset is turned on, the OS file loading means 11
Is activated (step S101). The OS file loading means 11 uses the OS file 4 in the secondary storage device 2.
The OS program stored in the OS area 6 is stored in the OS area 12 on the main memory 3 and the RAM disk area 7
The contents of the RAM disk stored in are loaded into the RAM disk area 13 on the main storage means 3 (step S102). Then, the OS file loading means 11
By executing the OS program stored in the OS area 12 on the main storage means 3, the OS 8 is activated (step S103), and the information processing device 1 is put into operation. The above is the operation when the information processing apparatus 1 is activated.

Here, the information processing apparatus 1 includes the main storage means 3
By executing the OS program stored in the upper OS area 12, the OS 8 is activated and the program is executed.
The result of this execution is the RAM disk area 1 on the main storage means 3.
RA added to the contents of the RAM disk stored in 3.
The contents of the M disc are changed. That is, the contents of the modified RAM disk to which this execution result is added are stored in the RAM disk area 13 on the main storage means 3. As described above, the RAM disk contents of the RAM disk area 13 on the main storage means 3 are changed as the information processing apparatus 1 is executed.

Next, the operation of the information processing apparatus 1 when a failure occurs will be described. FIG. 3 is an explanatory diagram showing an operation when a failure occurs in the information processing device 1. When a failure occurs in the information processing device 1 (step S201), the failure detecting means 9 of the OS 8 detects the failure. The failure detection means 9 recognizes the details of the failure, and when it determines that the information processing apparatus 1 needs to be restarted, it activates the storage means 10 to save the storage means 1.
0 is instructed to save the contents of the RAM disk area 13 in the main storage means 3 to the RAM disk stored in the RAM disk area 7 in the OS file 4 in the secondary storage device 2 (step S202).

The storage means 10 is a RAM on the main storage means 3.
RA stored in the RAM disk area 7 in the OS file 4 in the secondary storage device 2
The data is stored in the M disc (step S203). Here, the RAM disk area 1 on the main storage means 3 to be stored
The content of 3 is the modified RAM disk content in which the execution result generated by executing the OS program is added to the content of the original RAM disk. After the storage is completed, the information processing device 1 is reset by H / W, and the information processing device 1 is restarted. The above is the operation when the information processing device 1 fails.

As described above, according to this embodiment, the contents of the RAM disk on the main storage means 3 are stored in the OS file 4 in the secondary storage device 2 when the failure of the information processing device 1 occurs.
By writing and saving in the RAM disk stored in the AM disk area 7 and loading the contents of the RAM disk stored in the RAM disk area 7 into the RAM disk area 13 on the main storage means 3 when the information processing apparatus 1 is started up. , RAM after the information processing device 1 is restarted and before the failure occurs
Since the disk contents are expanded in the main storage means 3, it is possible to obtain the information processing device 1 in which the contents of the RAM disk are not erased even when the information processing device 1 is restarted due to a failure.

Embodiment 2. Hereinafter, the second embodiment will be described with reference to the drawings. FIG. 4 is a configuration diagram of the information processing apparatus 1 according to the second embodiment, and the same reference numerals as those in FIG. 1 denote the same or corresponding parts, and description thereof will be omitted. In FIG. 4, the information processing apparatus 1 includes a RAM disk saving file 14 that is a RAM disk saving unit that saves the contents of the RAM disk area 13 on the main storage unit 3, and a RA disk when the information processing apparatus 1 is activated.
The M disk storage file 14 is stored in the RAM on the main storage means 3.
A RAM disk restoring means 15 to be loaded in the disk area 13 is provided.

Next, the operation when the information processing apparatus 1 fails will be described. FIG. 5 is an explanatory diagram showing an operation when a failure occurs in the information processing device 1. When a failure occurs in the information processing device 1 (step S301), the failure detecting means 9 of the OS 8 detects the failure. The failure detection means 9 recognizes the details of the failure, and when it determines that the information processing apparatus 1 needs to be restarted, it activates the storage means 10 to save the storage means 1.
0 is instructed to save the contents of the RAM disk area 13 on the main storage means 3 in the RAM disk save file 14 in the secondary storage device 2 (step S302).

The storage means 10 is a RAM on the main storage means 3.
The contents of the disk area 13 are saved in the RAM disk save file 14 in the secondary storage device 2 (step S30).
3). Here, the RAM on the main storage means 3 to be stored
The content of the disk area 13 is the modified RAM disk content in which the execution result generated by executing the OS program is added to the content of the original RAM disk. After the storage is completed, the information processing device 1 is reset by H / W, and the information processing device 1 is restarted. The above is the operation when the information processing device 1 fails.

Next, the operation when the information processing apparatus 1 is started will be described. FIG. 6 is an explanatory diagram showing an operation at the time of starting the information processing device 1. When the power of the information processing apparatus 1 is turned on or the H / W reset is turned on, the OS file loading means 11
Is activated (step S401). The OS file loading means 11 uses the OS file 4 in the secondary storage device 2.
The OS program stored in the OS area 6 is stored in the OS area 12 on the main memory 3 and the RAM disk area 7
The contents of the RAM disk stored in are loaded into the RAM disk area 13 on the main storage means 3 (step S402). Then, the OS file loading means 11
Instructs the RAM disk restoration means 15 to load the contents of the RAM disk save file 14 into the RAM disk area 13 on the main storage means 3 (step S40).
3).

The RAM disk restoring means 15 stores the contents of the RAM disk save file 14 in the RA on the main storage means 3.
The M disk area 13 is loaded, and the process ends (step S404). Here, the content of the RAM disk save file 14 is the modified RAM disk content to which the execution result is added as described above, and the content of the RAM disk save file 14 is stored in the RAM disk area 7 that has been loaded previously. The added contents of the RAM disk are overwritten and added. When the processing of the RAM disk restoring means 15 is completed, the OS file loading means 11 executes the program in the OS area 12 on the main storage means 3, thereby the OS 8
Is started (step S405), and the information processing device 1 is put into operation. The above is the operation when the information processing apparatus 1 is activated.

As described above, according to this embodiment, when a failure occurs in the information processing device 1, the contents of the RAM disk on the main storage means 3 are independent of the OS file 4 in the secondary storage device 2 on the RAM disk. When the information processing apparatus 1 is restarted, the OS program in the OS area 6 and the contents of the RAM disk in the RAM disk area 7 are saved in the save file 14.
After expanding the contents of the S file 4 on the main storage means 3,
Since the contents of the RAM disk save file 14 are added by overwriting the already expanded RAM disk area 13 on the main storage means 3, the contents of the RAM disk in the initial state initially saved in the secondary storage means remain unchanged. It is possible to obtain the information processing apparatus 1 which is saved and whose contents in the RAM disk in the initial state are not erased even if the information processing apparatus 1 is restarted due to a failure.

The RAM disk content of the RAM disk save file 14, that is, the OS program is executed on the RAM disk content of the RAM disk area 7 already developed on the main storage means 3, that is, the RAM disk content in the initial state. Since the execution result caused by this overwrites the contents of the modified RAM disk added to the contents of the original RAM disk, the information processing apparatus 1 capable of constantly expanding the contents of the new RAM disk into the main storage means 3. Obtainable.

Embodiment 3. The third embodiment will be described below with reference to the drawings. The configuration of the information processing device 1 in the third embodiment is the same as that in FIG. 4 of the second embodiment. In the third embodiment, the operation of the RAM disk restoring means 15 is different from that of the second embodiment, and the operation of other components is the same as that of the second embodiment.
Is the same as.

Next, the operation when the information processing apparatus 1 is activated will be described. FIG. 7 is an explanatory diagram showing an operation at the time of starting the information processing device 1. When the power of the information processing apparatus 1 is turned on or the H / W reset is turned on, the OS file loading means 11
Is activated (step S501). The OS file loading means 11 uses the OS file 4 in the secondary storage device 2.
Referring to, the OS program stored in the OS area 6 is loaded into the OS area 12 on the main storage means 3 (step S
502). Then, the OS file loading means 11 uses the R
The contents of the RAM disk save file 14 are stored in the AM disk restoring means 15 in the RAM disk area 1 on the main storage means 3.
It is instructed to load the data in No. 3 (step S503).

The RAM disk restoration means 15 stores the contents of the RAM disk save file 14 in the RA on the main storage means 3.
It is loaded into the M disk area 13 and the process is terminated (step S504). When the processing of the RAM disk restoring means 15 is completed, the OS file loading means 11 executes the program of the OS area 12 on the main storage means 3,
The OS 8 starts up (step S505), and the information processing device 1
Becomes active. The above is the operation when the information processing apparatus 1 is activated.

As described above, according to the present embodiment, when the information processing apparatus 1 is restarted, the O in the secondary storage device 2 is restarted.
Only the OS program stored in the OS area 6 in the S file 4 is expanded in the main storage means 3, and then the secondary storage device 2
Since the contents of the RAM disk save file 14 in the OS file 4 are expanded in the main storage means 3,
It is possible to obtain the information processing apparatus 1 that can reduce the time required for the expansion process of expanding the AM disk in the main storage unit 3. In the present embodiment, the OS file loading means 11 expands the OS area 6 in the OS file 4 into the main storage means 3, and then the RAM disk restoring means 15 loads the contents of the RAM disk save file 14 into the main storage means 3. The RAM disk save file 14 has been expanded to the OS area 6
Obviously the result will be the same if loaded before.

Fourth Embodiment Hereinafter, Embodiment 4 will be described with reference to the drawings. FIG. 8 is a configuration diagram of the information processing apparatus 1 according to the fourth embodiment, and the same reference numerals as those in FIG. 4 denote the same or corresponding portions, and description thereof will be omitted. In FIG. 8, the information processing apparatus 1 includes a flag 16 indicating whether the content of the RAM disk save file 14 is valid or invalid.

Next, the operation when the information processing apparatus 1 is started will be described. FIG. 9 is an explanatory diagram showing an operation at the time of starting the information processing apparatus 1. When the power of the information processing apparatus 1 is turned on or the H / W reset is turned on, the OS file loading means 11
Is activated (step S601). The OS file loading means 11 uses the OS file 4 in the secondary storage device 2.
Referring to, the OS program stored in the OS area 6 is loaded into the OS area 12 on the main storage means 3 (step S
602). Then, the OS file loading means 11 uses the R
The contents of the RAM disk save file 14 are stored in the AM disk restoring means 15 in the RAM disk area 1 on the main storage means 3.
The RAM disk restoration process is instructed by loading the data in the No. 3 (step S603).

The RAM disk restoring means 15 uses the flag 1
Reference (check) the contents of 6 (step S60)
4). Then, the RAM disk restoring unit 15 copies the contents of the RAM disk saving file 14 in the secondary storage device 2 to the RA on the main storage unit 3 when the contents of the flag 16 are valid.
When the contents of the flag 16 are invalid when loaded in the M disk area 13, the RAM of the OS file 4 in the secondary storage device 2
The contents of the disk area 7 are loaded into the RAM disk area 13 on the main storage means 3 (step S605).

That is, when the content of the flag 16 is valid, the RAM disk save file 1 in the secondary storage device 2
4 is loaded into the RAM disk area 13 on the main storage means 3 when the content of the pre-stored initial RAM disk save file 14 is loaded, and the content of the flag 16 is invalid, the secondary storage device 2 The modified RAM disk content obtained by adding the execution result executed by the OS program, which is the content of the RAM disk area 7 of the OS file 4, to the content of the original RAM disk is loaded into the RAM disk area 13 on the main storage means 3.

When the processing of the RAM disk restoring means 15 is completed, the OS file loading means 11 is put in the main storage means 3.
By executing the program in the upper OS area 12, the OS
8 is activated (step S606), and the information processing device 1 is put into operation. The above is the operation when the information processing apparatus 1 is activated.

As described above, according to this embodiment, the contents in the RAM disk area 7 in the OS file 4 in the secondary storage device 2 are expanded in the main storage means 3 or the RAM disk save file 14 is stored. A flag 16 for determining whether or not to save the contents is provided. When the information processing apparatus 1 is restarted, the flag 16 is referred to, and the contents of the flag 16 are used to determine the contents of the RAM disk area 7 of the OS file 4 or the contents of the RAM disk save file 14. Is expanded in the main storage means 3, the contents of the flag 16 are changed so that R in the initial state is changed.
It is possible to obtain the information processing apparatus 1 capable of selecting whether to start the information processing apparatus 1 with the AM disk or the RAM disk immediately before the failure occurs.

Embodiment 5. Hereinafter, the fifth embodiment will be described with reference to the drawings. FIG. 10 is a configuration diagram of the information processing apparatus 1 according to the fifth embodiment, and the same reference numerals as those in FIG. 4 denote the same or corresponding portions, and description thereof will be omitted. In FIG. 10, the OS 8 in the information processing apparatus 1 has a RAM disk operating means 17 for operating the RAM disk area 13 on the main storage means 3.
Is equipped with.

Next, the operation of the information processing apparatus 1 when operating the RAM disk will be described. FIG. 11 is an explanatory diagram showing the operation of the information processing apparatus 1 when operating the RAM disk.
When the information processing apparatus 1 tries to perform an operation of reading / writing a file in which the contents of the RAM disk in the RAM disk area 13 on the main memory 3 are stored, the RAM disk operating means 17 operates. The RAM disk operating means 17 invalidates the flag 16 in the secondary storage device 2 (step S701). Then, the RA on the main storage means 3
The M disk area 13 is operated, and reading / writing of the file is executed (step S702).

Next, when the operation for reading and writing this file is completed, the RAM disk operating means 17 enables the flag 16 (step S703). As a result, the flag 16 is invalidated while the RAM disk area 13 on the main storage means 3 is being operated, that is, while the contents of the RAM disk are indefinite, and the RAM disk area 13 is being operated. The flag 16 is valid while the contents of the RAM disk are stable. The above is the operation of the information processing apparatus 1 when operating the RAM disk.

As described above, according to the present embodiment, when the RAM disk on the main storage means 3 is operated, the operation for reading / writing the file in which the RAM disk contents on the main storage means 3 are stored is executed. When the flag 16 is invalidated at the start, the flag 16 is validated at the end of the operation, and when the flag 16 is invalid when the information processing apparatus 1 is restarted, the contents of the RAM disk area 7 in the OS file 4 are stored in the main storage unit 3.
When the flag 16 is valid, the contents of the RAM disk save file 14 are expanded in the main storage means 3 so that the RA in the initial state is changed according to the read / write execution status.
It is possible to obtain the information processing apparatus 1 capable of expanding the contents of the M disk in the main storage means 3 or the contents of the RAM disk immediately before the occurrence of the failure (the RAM disk restoring means) in the main storage means 3. .

Sixth Embodiment Embodiment 6 will be described below with reference to the drawings. FIG. 12 is a configuration diagram of the information processing apparatus 1 according to the sixth embodiment, and the same reference numerals as those in FIG. 1 denote the same or corresponding portions, and description thereof will be omitted. In FIG. 12, the information processing device 1 includes a small capacity battery 18 for operating the information processing device 1 for a certain period of time when the power is unexpectedly cut off.

Next, the operation of the information processing apparatus 1 when the power is turned off will be described. FIG. 13 is an explanatory diagram showing the operation of the information processing apparatus 1 when the power is turned off. When a power failure occurs in the information processing device 1 (step S801), the failure detecting unit 9 of the OS 8 detects the power failure as a failure. Failure detection means 9
When the failure content is grasped and it is understood that the cause of the failure is the power failure, the small capacity battery 18 is used to secure the power source of the information processing apparatus 1 so that the subsequent processing can be continued (step S802).

The failure detection means 9 activates the storage means 10, and stores the contents of the RAM disk area 13 in the main storage means 3 in the storage means 10 in the RAM disk area 7 in the OS file 4 in the secondary storage device 2. An instruction is given to save in the stored RAM disk (step S803). The storage unit 10 stores the contents of the RAM disk area 13 in the main storage unit 3 in the RAM disk stored in the RAM disk area 7 in the OS file 4 in the secondary storage device 2 (step S804). After the storage is completed, the failure detection unit 9 turns off the small capacity battery 18 and stops the operation of the information processing device 1 (step S805). The above is the operation when the information processing apparatus 1 is powered off.

As described above, according to the present embodiment, the information processing apparatus 1 is provided with a small capacity battery, and even if the information processing apparatus 1 is unexpectedly turned off, the information processing apparatus 1 can be operated for a predetermined time by the small capacity battery. The RAM on the main storage means 3 when the power is cut off is stored in the RAM disk area of the OS file in the secondary storage device during operation, and the RAM disk contents on the main storage means 3 when the power is cut off are saved during the operation. It is possible to obtain the information processing apparatus 1 in which the disk content can be saved in the RAM disk area 7 of the OS file 4 in the secondary storage device 2 and the RAM disk content is not erased even when the information processing apparatus 1 is unexpectedly turned off. it can.

Embodiment 7. Hereinafter, the seventh embodiment will be described with reference to the drawings. FIG. 14 is a configuration diagram of the information processing apparatus 1 according to the seventh embodiment, and the same reference numerals as those in FIG. 4 denote the same or corresponding portions, and description thereof will be omitted. In FIG. 14, the storage unit 10 of the OS 8 includes a compression unit 19 that compresses data, and the RAM disk decompression unit 15 includes a decompression unit 20 that restores the compressed data to the original data.

Next, the operation of the information processing apparatus 1 when a failure occurs will be described. FIG. 15 is an explanatory diagram showing an operation when a failure occurs in the information processing device 1. When a failure occurs in the information processing device 1 (step S901), the failure detecting means 9 of the OS 8 detects the failure. The failure detecting means 9 grasps the details of the failure, and when it determines that the information processing apparatus 1 has to be restarted, it activates the saving means 10 and causes the saving means 10 to store the RAM disk area 13 on the main storage means 3. Contents of the RAM disk save file 14 in the secondary storage device 2
To save the data (step S902).

The storage means 10 is a RAM on the main storage means 3.
The contents of the disk area 13 are saved in the RAM disk save file 14 in the secondary storage device 2 (step S90).
3). At this time, the RAM disk area 1 on the main storage means 3
The contents of No. 3 are regarded as data, data compression is performed using the compression means 19, and the compressed data is saved in the RAM disk save file 14. After the storage is completed, the information processing device 1
H / W reset is applied to and the information processing device 1 is restarted. The above is the operation when the information processing device 1 fails.

Next, the operation when the information processing apparatus 1 is started will be described. FIG. 16 is an explanatory diagram showing an operation at the time of starting the information processing device 1. The information processing device 1 is powered on,
Or when the H / W reset is entered, the OS file loading means 1
1 is activated (step S1001). The OS file loading means 11 refers to the OS file 4 in the secondary storage device 2, and stores the OS program stored in the OS area 6 in the OS area 12 on the main storage means 3 and in the RAM disk area 7. The contents of the RAM disk are loaded into the RAM disk area 13 on the main storage means 3 (step S1002). Then, the OS file loading means 1
1 instructs the RAM disk restoring means 15 to load the contents of the RAM disk save file 14 into the RAM disk area 13 on the main storage means 3 (step S1).
003).

The RAM disk restoring means 15 stores the contents of the RAM disk save file 14 in the RA on the main storage means 3.
The M disk area 13 is loaded, and the RAM disk restoration processing ends (step S1004). At this time, RA
The data of the M disk storage file 14 is stored in the storage means 10.
Since the data is compressed using the compression means 19 of
The AM disk restoring means 15 uses the restoring means 20 to read R
After the compressed data in the AM disk save file 14 is restored to the original data, the RAM on the main storage means 3 is restored.
It is loaded into the disk area 13. When the processing of the RAM disk restoring means 15 is completed, the OS file loading means 1
1 executes the program in the OS area 12 on the main storage means 3 to start the OS 8 (step S100).
5) Then, the information processing device 1 is put into operation. The above is the operation when the information processing apparatus 1 is activated.

As described above, according to the present embodiment, when the failure of the information processing device 1 is detected, the R on the main storage means 3 is detected.
When the AM disk content is saved in the RAM disk save file 14, the RAM disk content in the main storage means 3 is compressed and saved, and when the information processing apparatus 1 is started up, the compression saved in the RAM disk save file 14 is performed. To restore the data and expand it in the RAM disk area 13 on the main storage means 3 to reduce the size of the RAM disk storage file 14 and obtain the information processing apparatus 1 in which the capacity of the secondary storage device 2 is small. You can

Embodiment 8. The eighth embodiment will be described below with reference to the drawings. FIG. 17 is a configuration diagram of the information processing apparatus 1 according to the eighth embodiment, and the same reference numerals as those in FIG. 4 denote the same or corresponding portions, and description thereof will be omitted. In FIG. 17, the storage means 10 of the OS 8 is provided with a valid file management information block and a checking means 21 for searching a valid file block from the contents of the RAM disk, and the RAM disk restoration means 15 is provided with the valid file management information. A disk restoring means 22 for restoring the contents of the RAM disk on the basis of blocks and valid file blocks is provided.

18 and 19 show the RA on the main storage means 3.
6 is a diagram showing a data structure of an M disc area 13. FIG. Figure 1
The data structure of the RAM disk area 13 on the main memory 3 will be described with reference to FIGS. The RAM disk area 13 is roughly divided into three areas. The first is R
A disk management information area 23 for managing the state of the entire AM disk, the second is a file in which management information of each file such as the file type and update date and time, and the position of the file on the file block described below is recorded. The management information block area 24 and the third is a file block area 25 in which actual file data is recorded.

In the disk management information area 23, a valid file management information block list 26 in which file management information blocks valid in the file management information block area 24, that is, used file management information blocks are linked and a list can be referred to, A valid file management information block list 27 is stored in which the file blocks that are valid, that is, in use, are linked in the block area 25 and the list can be referred to. In a normal RAM disk operation, this list is operated, Free files are searched and new files are created. The end of the valid file management information block list 26 and the valid file management information block list 27 is 0, so that the end of the list can be known.

Next, the operation of the information processing apparatus 1 when a failure occurs will be described. FIG. 20 is an explanatory diagram showing an operation when a failure occurs in the information processing device 1. When a failure occurs in the information processing device 1 (step S1101), the failure detection means 9 of the OS 8 detects the failure. The failure detecting means 9 grasps the details of the failure, and when it determines that the information processing apparatus 1 has to be restarted, it activates the saving means 10 and causes the saving means 10 to store the RAM disk area 13 on the main storage means 3. Contents of the RAM disk save file 1 in the secondary storage device 2
4 is instructed to be saved (step S1102).

The storage means 10 is a RAM on the main storage means 3.
The contents of the disk area 13 are saved in the RAM disk save file 14 in the secondary storage device 2 (step S110).
3). At this time, in the storing means 10, the checking means 21 determines the valid file management information block in the RAM disk area 13 and the valid file block from the contents of the disk management information area 23 of the RAM disk area 13 on the main storage means 3. Is searched, and the searched valid file management information block and valid file block are saved in the RAM disk save file 14.

Specifically, a block in use in the file management information block area 24 is searched from the valid file management information block list 26 of the disk management information area 23, and the file management information block area 2 of the block is searched.
The contents are written in the RAM disk save file 14 together with the position information in the RAM 4.

Similarly, a block in use in the file block area 25 is searched from the valid file block list 25 in the disk management information area 23, and the contents are stored together with the position information in the file block area 25 of the RAM block storage file. Write in 14 After the processing of the storage unit 10 is completed, the information processing device 1 is reset by H / W, and the information processing device 1 is activated. The above is the operation when the information processing device 1 fails.

Next, the operation when the information processing apparatus 1 is started will be described. FIG. 21 is an explanatory diagram showing an operation at the time of starting the information processing device 1. The information processing device 1 is powered on,
Or when the H / W reset is entered, the OS file loading means 1
1 is activated (step S1201). The OS file loading means 11 refers to the OS file 4 in the secondary storage device 2, and sets the contents of the OS area 6 to the OS on the main storage means 3.
The contents of the RAM disk area 7 are loaded into the area 12 into the RAM disk area 13 on the main storage means 3 (step S1202). Then, the OS file loading means 11 causes the RAM disk restoring means 15 to copy the contents of the RAM disk save file 14 to the RAM on the main storage means 3.
The RAM disk restoration process by loading in the disk area 13 is instructed (step S1203).

The RAM disk restoring means 15 stores the contents of the RAM disk save file 14 in the RA on the main storage means 3.
The data is loaded into the M disk area 13 and the process ends (step S1204). At this time, the RAM disk storage means 13
Using the disk restoring means 22 in the RAM, the RAM is stored based on the valid file management information block and the valid file block stored in the RAM disk save file 14.
The disk is restored and expanded in the RAM disk area 13 on the main storage means 3.

Specifically, when the information processing device 1 fails,
In the RAM disk save file 14, the contents of the file management information block valid by the saving means 10 and the position of the block in the file management information block area 24,
Since the contents of the valid file block and the position of the block in the file block area 25 are stored, the disk restoring means 22 creates the disk management information area 23 based on the data, and at the same time, the data is stored. After the effective blocks of the file management information block area 24 and the file block area 25 are created based on the above, the remaining blocks of the file management information block area 24 and the file block area 25 are created as free blocks.

When the processing of the RAM disk restoring means 15 is finished, the OS file loading means 11 is in the main storage means 3.
By executing the program in the upper OS area 12, the OS
8 is activated (step S1205), and the information processing device 1 is activated. The above is the operation when the information processing apparatus 1 is activated.

As described above, according to the present embodiment, when the contents of the RAM disk on the main storage means 3 are stored in the RAM disk storage file 14 when the failure of the information processing device 1 is detected, the main storage means is stored. 3, the valid file management information blocks and valid file blocks are stored in the RAM disk save file 14, and the RAM disk save file 14 is restarted when the information processing apparatus 1 is restarted. RAM from a valid file management information block and valid file block
By reconstructing the disk and expanding the RAM disk on the main storage means 3, the RAM disk save file 1
It is possible to obtain the information processing device 1 in which the size of the storage device 4 is reduced and the capacity of the secondary storage device 2 is small.

[0067]

Since the present invention is constructed as described above, it has the following effects.

In the first invention, the OS program stored in the secondary storage means and the contents of the RAM disk are loaded into the main storage means at the time of startup, and the execution result executed by the OS program is stored in the RAM disk in the main storage means. By storing the modified RAM disk content added to the content and storing the modified RAM disk content stored in the main storage means in the secondary storage means when a failure is detected, even if an unexpected power failure occurs due to a failure or the like. There is an effect that it is possible to provide an information processing device in which the contents of the RAM disk on the main storage means are not erased.

In the second invention, when the failure is detected, the contents of the modified RAM disk stored in the main storage means are saved in the RAM disk saving means, so that even if an unexpected power failure occurs due to a failure or the like, the secondary power is first used. There is an effect that it is possible to provide an information processing device which is stored in the storage means but is not erased.

In the third invention, the contents of the modified RAM disk are overwritten on the contents of the RAM disk loaded into the main storage means by the OS file loading means.
There is an effect that it is possible to provide an information processing apparatus capable of constantly expanding new RAM disk contents into the main storage means.

In the fourth invention, the OS file loading means loads the above OS program stored in the secondary storage means into the main storage means at the time of starting, and the RAM disk restoring means stores the modified RAM stored in the RAM disk storage means. By loading the disk contents into the main storage means at startup,
There is an effect that it is possible to provide an information processing device capable of reducing the time required for the expansion processing of the RAM disk in the OS file.

In the fifth invention, the contents of the modified RAM disk stored in the RAM disk storage are loaded into the main storage means, or the contents of the RAM disk stored in the secondary storage means are loaded into the main storage means. By loading the modified RAM disk contents or the contents of the RAM disk into the main memory means at the time of startup, the information processing device is started by the RAM disk in the initial state or the RAM disk just before the failure occurs. There is an effect that it is possible to provide an information processing apparatus capable of selecting whether to start the information processing apparatus.

According to the sixth aspect of the present invention, a flag for loading the contents of the RAM disk into the main storage means is displayed during the reading / writing operation to the contents of the RAM disk, and the change RAM is displayed when the reading / writing operation to the contents of the RAM disk is completed. By displaying a flag for loading the disk contents into the main storage means, R is stored in the main storage means 3 according to the read / write execution status of the file in which the RAM disk contents of the main storage means are stored.
There is an effect that it is possible to provide an information processing apparatus capable of expanding the contents of the AM disk.

According to the seventh aspect of the invention, there is provided compression means for compressing the contents of the modified RAM disk stored in the main storage means, and decompression means for decompressing the modified RAM disk content compressed by the compression means. Thus, there is an effect that the size of the RAM disk storage file can be reduced and an information processing apparatus that requires a small capacity of the secondary storage device can be provided.

In the eighth invention, the valid file management information block and the valid file block retrieved by the checking means are stored in the RAM disk storage means, and the valid file management information block and the valid file stored in the RAM disk storage means. By restoring the content of the RAM disk based on the blocks and loading it in the main storage means, it is possible to provide an information processing apparatus in which the size of the RAM disk save file 14 can be reduced and the capacity of the secondary storage device 2 can be reduced. There is an effect.

According to the ninth aspect of the invention, the contents of the modified RAM disk stored in the main storage means are stored in the RAM of the secondary storage means on the basis of the electricity supply from the small capacity battery for a certain time when the power failure is detected by the failure detection means. By storing the information in the disk, it is possible to provide an information processing apparatus in which the contents of the RAM disk are not erased even when the information processing apparatus 1 is unexpectedly turned off.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an information processing device 1 according to a first embodiment.

FIG. 2 is an explanatory diagram showing an operation at the time of activation of the information processing device 1 according to the first embodiment.

FIG. 3 is an explanatory diagram showing an operation when a failure occurs in the information processing device 1 according to the first embodiment.

FIG. 4 is a configuration diagram of an information processing device 1 according to a second embodiment.

FIG. 5 is an explanatory diagram showing an operation when a failure occurs in the information processing device 1 according to the second embodiment.

FIG. 6 is an explanatory diagram showing an operation at the time of activation of the information processing device 1 according to the second embodiment.

FIG. 7 is an explanatory diagram showing an operation at the time of activation of the information processing device 1 according to the third embodiment.

FIG. 8 is a configuration diagram of an information processing device 1 according to a fourth embodiment.

FIG. 9 is an explanatory diagram showing an operation at the time of activation of the information processing device 1 according to the fourth embodiment.

FIG. 10 is a configuration diagram of an information processing device 1 according to a fifth embodiment.

FIG. 11 RA of the information processing apparatus 1 according to the fifth embodiment
Explanatory drawing which shows the operation | movement at the time of M disk operation.

FIG. 12 is a configuration diagram of an information processing device 1 according to a sixth embodiment.

FIG. 13 is an explanatory diagram showing the operation of the information processing apparatus 1 according to the sixth embodiment when the power is turned off.

FIG. 14 is a configuration diagram of an information processing device 1 according to a seventh embodiment.

FIG. 15 is an explanatory diagram showing an operation when a failure occurs in the information processing device 1 according to the seventh embodiment.

FIG. 16 is an explanatory diagram showing an operation at the time of activation of the information processing device 1 according to the seventh embodiment.

FIG. 17 is a configuration diagram of the information processing device 1 according to the eighth embodiment.

FIG. 18 RA on the main storage means 3 in the eighth embodiment
The figure which shows the data structure of M disk area | region 13.

FIG. 19 RA on the main storage means 3 in the eighth embodiment
The figure which shows the data structure of M disk area | region 13.

FIG. 20 is an explanatory diagram showing an operation when a failure occurs in the information processing device 1 according to the eighth embodiment.

FIG. 21 is an explanatory diagram showing an operation at the time of starting the information processing apparatus 1 according to the eighth embodiment.

FIG. 22 is a block diagram of a conventional medium environment updating device.

[Explanation of symbols]

1 information processing device 1, 2 secondary storage device, 3 main storage means, 4 OS files, 6 OS area, 7 RAM disk area, 8 OS, 9 failure detection means, 10 storage means, 11 OS file loading means, 12 OS region,
13 RAM disk area, 14 RAM disk save file, 15 RAM disk restoring means, 16 flag, 17 RAM disk operating means, 18 low capacity battery, 19 compression means, 20 restoring means, 21 checking means, 22 disk restoring means, 23 disks Management information area, 24 file management information block area, 2
5 file block area, 26 valid file management information block list, 27 valid file management information block list.

Claims (9)

[Claims] 1. A secondary storage means for storing an OS program and a RAM disk; an OS file loading means for loading the OS program and the RAM disk contents of the RAM disk at startup; and the OS file loading means. The above O loaded
Main storage means for storing the modified RAM disk content obtained by adding the execution result executed by the S program to the RAM disk content loaded by the OS file loading means, failure detection means for detecting a failure, and failure detection means An information processing device, which stores the changed RAM disk contents stored in the main storage means in the RAM disk of the secondary storage means when a failure is detected. 2. The change R stored in the main storage means.
RAM disk saving means for saving AM disk contents, and RA for loading the modified RAM disk contents saved in the RAM disk saving means into the main storage means.
M disk restoring means, wherein the saving means saves the changed RAM disk contents stored in the main storage means in the RAM disk saving means when the failure detecting means detects a failure. The information processing device according to item 1. 3. The RAM disk restoring means is the R disk.
The modified RAM disk content stored in the AM disk storage means is loaded into the main storage means, and the modified RAM disk content loaded into the main storage means by the OS file loading means is overwritten with the modified RAM disk content. The information processing apparatus according to claim 2, wherein: 4. The OS file loading means loads the OS program stored in the secondary storage means into the main storage means at startup, and the RAM disk restoring means is stored in the RAM disk storage means. 3. The information processing apparatus according to claim 2, wherein the contents of the modified RAM disk are loaded into the main storage means at startup. 5. The modified RAM disk content stored in the RAM disk storage is loaded into the main storage means, or the RAM disk content stored in the secondary storage means is loaded into the main storage means. 3. The RAM disk restoring means loads the changed RAM disk content or the RAM disk content into the main storage means at the time of start-up based on the flag. The information processing device described. 6. The flag for loading the contents of the RAM disk into the main storage means is displayed during execution of the read / write operation to the contents of the RAM disk, and when the read / write operation to the contents of the RAM disk is completed, the flag is displayed. 6. An information processing apparatus according to claim 5, further comprising a RAM disk operating means for displaying the flag for loading the changed RAM disk contents into the main storage means. 7. The storage means comprises compression means for compressing the modified RAM disk content stored in the main storage means, and the RAM disk decompression means is the modified RAM disk content compressed by the compression means. The information processing apparatus according to claim 2, further comprising a restoring unit that restores the information. 8. The RAM comprising a file management information block area in which management information of a file in which the contents of the modified RAM disk are stored and a file block area in which file data is recorded are stored in the main storage means.
The storage means includes a disk area, and the storage means stores a valid file management information block and file data in which management information of a file in which the changed RAM disk content is stored is recorded from the file management information block area and the file block area. A check means for searching the recorded file block; and storing the valid file management information block and the valid file block searched by the checking means in the RAM disk saving means, and the RAM disk restoring means, It is characterized by further comprising disk restoring means for restoring the contents of the RAM disk based on the valid file management information block and the valid file block saved in the RAM disk saving means and loading the contents in the main storage means. The information processing apparatus according to claim 2. 9. A small-capacity battery that supplies electricity for a certain period of time, wherein the failure detection means detects a power failure, and the storage means, when the failure detection means detects a power failure, the small-capacity battery. The changed RA stored in the main storage means based on the electricity supply for a certain time by
The information processing apparatus according to claim 1, wherein the contents of the M disk are stored in the RAM disk of the secondary storage means.