TWI483108B - Method and system for storing and accessing data of hard disk - Google Patents

Description

Hard disk data access method and system

The present invention relates to a data access method and system, and more particularly to a hard disk data access method and system.

A conventional hard disk generally divides a magnetic track into 512 Bytes to obtain a magnetic region, so the storage capacity of each magnetic region is 512 Bytes. At present, many kinds of hard disks with a magnetic storage capacity of less than 512 bytes have been gradually introduced, such as a hard disk with a storage capacity of 520 Bytes, a hard disk with a magnetic storage capacity of 4096 Bytes, and the like. Due to the compatibility problem, some operating systems, such as Windows XP and Linux, do not have a hard disk storage driver with a magnetic storage capacity of 512 Bytes. Therefore, these operating systems do not support a storage capacity of 512 Bytes. Data access to the hard drive. Although the driver corresponding to the hard disk in the modified operating system can realize the data access of the hard disk whose magnetic storage capacity is not 512 Byte, as the hard disk is more and more due to the different storage capacity of the magnetic area, the hard disk is modified. The driver corresponding to the disc also makes it difficult for the operating system to support data access to all types of hard drives.

In view of the above, it is necessary to provide a hard disk access method and system, which can use the first hard disk whose magnetic storage capacity is a preset value (such as 512 Byte) as a data transfer station, so that the operating system does not store the magnetic area. Data access for the second hard disk of the preset value.

A method for accessing a hard disk data, comprising the steps of: establishing a second hard disk root directory in a first hard disk whose storage capacity of the computer is a preset value, and storing the capacity in the magnetic area is not the same a second hard disk of a preset value is used to establish a record table for recording a storage area of each data in the second hard disk; and a second hard disk data access step: when the user is to the second hard disk When storing data, accessing data or deleting data in the root directory, the first hard disk is used as a data transfer station to store the data to the second hard disk, or to access the data from the second hard disk or delete the data. The information.

A hard disk data access system includes: a module for establishing a second hard disk root directory in a first hard disk with a predetermined storage value of a magnetic area of the computer, and the storage capacity in the magnetic area is not a second hard disk of the preset value is used to establish a record table for recording a storage area of each data in the second hard disk; and a second hard disk data access module for when the user When the second hard disk root directory stores data, accesses data, or deletes the data, the first hard disk is used as a data transfer station to store the data to the second hard disk or access the second hard disk. The information or delete the information.

Compared with the prior art, the hard disk access method and system of the present invention can use the first hard disk whose magnetic area storage capacity is a preset value (for example, 512 Byte) as a data transfer station, and realize the operating system to the magnetic area storage capacity. Data access of the second hard disk that is not the preset value.

Referring to FIG. 1, there is shown an operating environment diagram of a preferred embodiment of the hard disk data access system of the present invention. In the present embodiment, the hard disk data access system 10 is applied to a computer 100. The computer 100 includes a first hard disk having a magnetic area storage capacity of 512 bytes (hereinafter referred to as "512 hard disk". 1), and a second hard disk (hereinafter referred to as "non-512 hard disk") 2 whose magnetic storage capacity is not 512 Bytes. The 512 hard disk 1 is communicatively coupled to the non-512 hard disk 2.

The hard disk data access system 10 is stored in the 512 hard disk 1. The operating system 11 is also installed in the 512 hard disk 1. The operating system 11 has a driver corresponding to 512 hard disk 1, which enables the operating system 11 to access data in the 512 hard disk 1. At the same time, since there is no driver corresponding to the non-512 hard disk 2 in the operating system 11, the operating system 11 cannot directly access the data in the non-512 hard disk 2. The information is a catalog or an archive. The directory is a tree structure, that is, the parent directory can contain subdirectories, and the subdirectories can contain files. The file can be audio, text documents, videos, and the like.

A non-512 hard disk root directory 12 (or a second hard disk root directory 12) is created in the 512 hard disk 1. The non-512 hard disk root directory 12 is a corresponding window of the non-512 hard disk 2, that is, viewed by the user. Come, non-512 hard disk 2 is a folder in 512 hard disk 1, that is, non-512 hard disk root directory 12. If the user stores the data in the non-512 hard disk root directory 12, it means that the user wishes to store the data in the non-512 hard disk 2.

The hard disk data access system 10 is configured to establish the non-512 hard disk root directory 12, and when the user accesses the data to the non-512 hard disk root directory 12, the data is transferred by using the 512 hard disk 1 as a data transfer station. Save it to non-512 hard disk 2 or read it from non-512 hard disk 2.

Referring to FIG. 2, it is a functional block diagram of a preferred embodiment of the hard disk data access system of the present invention. The hard disk data access system 10 includes a setup module 101, an acquisition module 102, a first determination module 103, a lookup module 104, a first transfer module 105, a recording module 106, an inquiry module 107, and a second The transfer module 108, the second determination module 109, and the deletion module 110. The module referred to in this embodiment is a program segment that performs a specific function, and is more suitable for describing the execution process of the software in the computer 100 than the program. In other embodiments, the modules 102-110 may also be collectively named as one module, such as a second hard disk data access module.

The setup module 101 is configured to create the non-512 hard disk root directory 12 in the 512 hard disk 1 and create a recording table 20 in the non-512 hard disk 2. The initial content of the record table 20 is empty. Since the non-512 hard disk 2 stores the data in a chain storage manner, one data may be stored in a plurality of storage areas of the non-512 hard disk 2, and the record table 20 is used to record the respective data in the non-512 hard disk 2 storage. The start and end addresses of the area.

Referring to FIG. 3, an example diagram of the record table 20 is shown. The storage area of the directory A in the non-512 hard disk 2 is recorded in the record table 20. The directory A contains an archive a, which is stored in two storage areas of the non-512 hard disk 2. The first storage area has a starting address of **00 and a termination address of **01. The starting address of the second storage area is **05 and the ending address is **07.

The obtaining module 102 is configured to: when the user stores the first data in the non-512 hard disk root directory 12, obtain the name and size of the first data, and assign a corresponding ID number to the first data. The first material can be a directory or a file. If the first data is a file, the obtaining module 102 allocates a corresponding ID number to the file. If the first data is a directory, the obtaining module 102 is the directory and all subdirectories and files under the directory are respectively Assign the corresponding ID number.

The first determining module 103 is configured to read the content in the record table 20, and determine, according to the content and the size of the first data, whether the non-512 hard disk 2 has sufficient available storage space to store the first data. Specifically, since the record table 20 records the storage area of all the data stored in the non-512 hard disk 2 in the non-512 hard disk 2, that is, the record table 20 records the storage space used by the non-512 hard disk 2, By subtracting the used storage space from the total storage space of the non-512 hard disk 2, the available storage space of the non-512 hard disk 2 can be obtained. If the available storage space of the non-512 hard disk 2 is larger than the size of the first data, it is determined that the non-512 hard disk 2 has enough available storage space to store the first data.

The searching module 104 is configured to find a storage area for storing the first data from the non-512 hard disk 2 according to the content of the record table 20 when the non-512 hard disk 2 has sufficient available storage space to store the first data. .

According to the record of the storage space used by the non-512 hard disk 2 in the record table 20, the available storage space of the non-512 hard disk 2 can be calculated. Since the data in the non-512 hard disk 2 may be stored in a discontinuous manner, the available storage space may consist of a series of discrete storage blocks. For example, as shown in FIG. 3, the starting address of the first storage area of the file a in the non-512 hard disk 2 is **00, the ending address is **01, and the starting address of the second storage area is **05, the termination address is **07, and a storage block is formed between the first storage area and the second storage area because no data is stored, and the starting address of the storage block is The termination address of the first storage area, and the termination address of the storage block is the start address of the second storage area.

The search module 104 can respectively derive a start address and a stop address of the series of storage blocks according to the record of the record table 20, thereby traversing the series of storage blocks. When a storage block is sufficient for storing the first data, the search module 104 finds an area from the storage block as a storage area of the data according to the size of the first data, for example, a starting address of the storage area. For the starting address of the storage block, the ending address of the storage area is the starting address of the storage area plus the size of the first data. If no storage block in the series of storage blocks is sufficient for storing the first data, the search module 104 finds a plurality of storage blocks from the series of storage blocks, and the storage of the plurality of storage blocks The space is sufficient for storing the first data, and the search module 104 finds a storage area for storing the data from the plurality of storage blocks according to the size of the first data.

The first transfer module 105 is configured to read the first data from the non-512 hard disk root directory 12, and transfer the first data to the search module 104 through a SCSI (Small Computer System Interface) command. The storage area for storing the first data, and storing the mark of the first data in the non-512 hard disk root directory 12, the mark includes attributes such as an ID number and a name of the first material. When the user accesses the mark of the first material, the first data can be accessed. For example, the first material is a video, and the mark of the first data is an icon of the video, and when the user clicks on the icon, the video can be started to be played.

The recording module 106 is configured to record the name and ID number of the first material and the start address and the end address of all the storage areas of the first data in the non-512 hard disk 2 in the record table 20.

The obtaining module 102 is further configured to acquire the ID number of the second data when the user accesses the mark of the second material in the non-512 hard disk root directory 12. The access includes viewing or modifying the second material.

The query module 107 is configured to query, in the record table 20, the start address and the end address of all the storage areas of the second data in the non-512 hard disk 2 according to the ID number of the second data.

The second transfer module 108 is configured to read the second data from the non-512 hard disk 2 according to the start address and the end address of all the storage areas in the non-512 hard disk 2 according to the second data, and the second data The second data is transferred to the non-512 hard disk root directory 12 for the user to access the second data.

The second determining module 109 is configured to determine, when the user stops accessing the second data, for example, the user closes the video or application as the second material, and determines whether the second data has been modified in the non-512 hard disk root directory 12. .

The first transfer module 105 is further configured to: when the second determining module 109 determines that the second data has been modified in the non-512 hard disk root directory 12, transfer the modified second data to the non-512 hard disk 2 And recording, by the recording module 106, the record of the second data in the record table 20, including the start address and the stop address of the storage area of the second data in the non-512 hard disk 2.

The first transfer module 105 is further configured to directly transfer the second data to the non-512 hard disk 2 when the second determining module 109 determines that the second data is not modified in the non-512 hard disk root directory 12.

The obtaining module 102 is further configured to acquire the ID number of the third data when the user deletes the mark of the third material in the non-512 hard disk root directory 12.

The query module 107 is further configured to query, in the record table 20, the start address and the end address of all the storage areas of the third data in the non-512 hard disk 2 according to the ID number of the third data.

The deleting module 110 is configured to find and delete the third data in the non-512 hard disk 2 according to the start address and the ending address of all the storage areas in the non-512 hard disk 2 according to the third data, and delete the third data. All the records in the record table 20 include the name and ID number of the third material, and the start address and the end address of all the storage areas of the third data in the non-512 hard disk 2.

Referring to FIG. 4, it is a flow chart of a preferred embodiment of storing data in the hard disk data access method of the present invention.

Before proceeding to step S11, the setup module 101 first creates the non-512 hard disk root directory 12 in the 512 hard disk 1, and creates the record table 20 in the non-512 hard disk 2. The initial content of the record table 20 is empty. The record table 20 is used to record the start address and the end address of each data in each storage area of the non-512 hard disk 2.

In step S11, when the user stores the first data in the non-512 hard disk root directory 12, the obtaining module 102 acquires the name and size of the first data, and assigns a corresponding ID number to the first data.

In step S12, the first determining module 103 reads the content in the record table 20, and determines whether the non-512 hard disk 2 has sufficient available storage space to store the first data according to the content and the size of the first data. If the non-512 hard disk 2 has enough available storage space to store the first data, the process proceeds to step S13. If the non-512 hard disk 2 does not have enough available storage space to store the first data, the process ends.

In step S13, the search module 104 finds a storage area for storing the first data from the non-512 hard disk 2 according to the content of the record table 20.

Step S14, the first transfer module 105 reads the first data from the non-512 hard disk root directory 12, and transfers the first data to the storage area for storing the first data through a SCSI command, and The first data tag is stored in the non-512 hard disk root directory 12.

In step S15, the recording module 106 records the name and ID number of the first material and the start address and the end address of all the storage areas of the first data in the non-512 hard disk 2 in the record table 20.

Referring to FIG. 5, it is a flow chart of a preferred embodiment of the hard disk data access method access data of the present invention.

In step S21, when accessing the mark of the second material in the non-512 hard disk root directory 12, the obtaining module 102 acquires the ID number of the second data.

In step S22, the query module 107 queries the record table 20 for the start address and the end address of all the storage areas of the second data in the non-512 hard disk 2 according to the ID number of the second data.

Step S23, the second transfer module 108 reads the second data from the non-512 hard disk 2 according to the start address and the end address of all the storage areas in the non-512 hard disk 2 according to the second data, and the The second data is transferred to the non-512 hard disk root directory 12 for the user to access the second data.

Step S24, when the user stops accessing the second data, the second determining module 109 determines whether the second data has been modified in the non-512 hard disk root directory 12. If the second material has been modified in the non-512 hard disk root directory 12, the process proceeds to step S25. If the second data has not been modified in the non-512 hard disk root directory 12, the process proceeds to step S26.

In step S25, the first transfer module 105 transfers the modified second data to the non-512 hard disk 2, and the record module 106 modifies the record of the second data in the record table 20, including the second data. The start address and the end address of the storage area in the non-512 hard disk 2.

In step S26, the first transfer module 105 directly transfers the second data to the non-512 hard disk 2.

Referring to FIG. 6, a flow chart of a preferred embodiment of the method for deleting data in the hard disk data access method of the present invention is shown.

In step S31, when the user deletes the mark of the third material in the non-512 hard disk root directory 12, the obtaining module 102 acquires the ID number of the third data.

In step S32, the query module 107 queries the record table 20 for the start address and the end address of all the storage areas of the third data in the non-512 hard disk 2 according to the ID number of the third data.

Step S33, the deleting module 110 finds and deletes the third data in the non-512 hard disk 2 according to the start address and the ending address of all the storage areas in the non-512 hard disk 2 according to the third data, and deletes the third data. All the records in the record table 20 include the name and ID number of the third material, and the start address and the end address of all the storage areas of the third data in the non-512 hard disk 2.

In the present embodiment, the magnetic storage capacity of the first hard disk 1 is 512 Bytes, and the magnetic storage capacity of the second hard disk 2 is 512 Bytes as an example. It should be understood by those skilled in the art that the magnetic storage capacity of the first hard disk 1 may also be other preset values, such as 4096 bytes, and the magnetic storage capacity of the second hard disk 2 is not 4096 bytes.

In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and equivalent modifications or variations made by those skilled in the art in light of the spirit of the present invention are It should be covered by the following patent application.

100. . . computer

1. . . 512 hard disk

10. . . Hard disk data access system

11. . . working system

12. . . Non-512 hard disk root directory

2. . . Non-512 hard disk

20. . . recording sheet

101. . . Building a module

102. . . Get module

103. . . First judgment module

104. . . Search module

105. . . First transfer module

106. . . Recording module

107. . . Query module

108. . . Second transfer module

109. . . Second judgment module

110. . . Delete module

1 is a diagram showing an operating environment of a preferred embodiment of a hard disk data access system of the present invention.

2 is a functional block diagram of a preferred embodiment of the hard disk data access system of the present invention.

Fig. 3 is a diagram showing an example of a record table in Fig. 1.

4 is a flow chart of a preferred embodiment of storing data in the hard disk data access method of the present invention.

FIG. 5 is a flow chart of a preferred embodiment of the hard disk data access method access data of the present invention.

6 is a flow chart of a preferred embodiment of the method for deleting data in the hard disk data access method of the present invention.

100. . . computer

1. . . 512 hard disk

10. . . Hard disk data access system

11. . . working system

12. . . Non-512 hard disk root directory

2. . . Non-512 hard disk

20. . . recording sheet

Claims (10)

A hard disk data access method includes the following steps:
The establishing step is: establishing a second hard disk root directory in the first hard disk whose storage capacity of the computer is a preset value, and establishing a record in the second hard disk whose magnetic storage capacity is not the preset value. a table for recording a storage area of each of the data on the second hard disk; and a second hard disk data accessing step: when the user stores the data, accesses the data, or deletes the data to the second hard disk root directory And storing the data on the second hard disk by using the first hard disk as a data transfer station, or accessing the data from the second hard disk or deleting the data. The hard disk data access method of claim 1, wherein the method of storing data to the second hard disk in the second hard disk data accessing step comprises the following steps:
Obtaining step 1: when storing the data in the root directory of the second hard disk, obtaining the name and size of the data, and assigning the corresponding ID number to the data;
a searching step: finding a storage area for storing the data on the second hard disk according to the content of the record table;
Transfer step 1: transferring the data to the storage area for storing the data, and storing the mark of the data in the root directory of the second hard disk, the mark including the name and ID number of the data;
Recording step one: the name and ID number of the material, and the storage area of the data on the second hard disk are recorded in the record table. The hard disk data access method of claim 2, wherein the searching step is performed when the second hard disk has sufficient available storage space to store the data. The hard disk data access method of claim 1, wherein in the second hard disk data accessing step, the method for accessing data from the second hard disk comprises the following steps:
Obtaining step 2: when accessing the mark of the data in the root directory of the second hard disk, obtaining the ID number of the data;
Step 1: Query the storage area of the data on the second hard disk in the record table according to the ID number of the data;
Transfer step 2: reading the data in the storage area of the second hard disk according to the data, and transferring the data to the root directory of the second hard disk for the user to access the data;
Judging step: when the access to the data is stopped, determining whether the data has been modified in the second hard disk root directory;
Transfer step 3: when the data has been modified in the root directory of the second hard disk, transfer the modified data to the second hard disk, and modify the record of the data in the record table;
Transfer step 4: When the data is not modified in the second hard disk root directory, the data is directly transferred to the second hard disk. The hard disk data access method of claim 1, wherein the method of deleting data from the second hard disk in the second hard disk data accessing step comprises the following steps:
Obtaining step 3: when deleting the mark of the data in the root directory of the second hard disk, obtaining the ID number of the data;
Step 2: Query the storage area of the data on the second hard disk in the record table according to the ID number of the data;
Deletion step: Find and delete the data on the second hard disk according to the storage area, and delete all the records in the record table of the data. A hard disk data access system includes:
Establishing a module for establishing a second hard disk root directory in the first hard disk with a preset storage value of the magnetic volume of the computer, and storing the second hard disk in the magnetic volume whose storage capacity is not the preset value Establishing a record table for recording a storage area of each data on the second hard disk; and a second hard disk data access module for storing data in the root directory of the second hard disk When accessing the data or deleting the data, the first hard disk is used as a data transfer station to store the data to the second hard disk, or to access the data from the second hard disk or delete the data. For example, in the hard disk data access system of claim 6, the second hard disk data access module stores data to the second hard disk by the following steps:
When storing the data in the second hard disk root directory, obtaining the name and size of the data, and assigning the corresponding ID number to the data;
Finding a storage area for storing the data in the second hard disk according to the content of the record table;
Transferring the data to the storage area for storing the data, and storing the mark of the material in the second hard disk root directory, the mark including the name and ID number of the data;
The name and ID number of the material, and the storage area of the material on the second hard disk are recorded in the record table. The hard disk data access system of claim 7, wherein when the second hard disk has sufficient available storage space for storing the data, the second hard disk data access module is based on the record table. The content finds a storage area for storing the material on the second hard disk. In the hard disk data access system of claim 6, the second hard disk data access module accesses data from the second hard disk by the following steps:
When accessing the mark of the data in the root directory of the second hard disk, obtaining the ID number of the data;
Querying, in the record table, the storage area of the data on the second hard disk according to the ID number of the data;
Reading the data in the storage area of the second hard disk according to the data, and transferring the data to the root directory of the second hard disk for the user to access the data;
When the access to the material is stopped, it is determined whether the data has been modified in the second hard disk root directory;
When the data has been modified in the second hard disk root directory, the modified data is transferred to the second hard disk, and the record of the data in the record table is modified;
When the data is not modified in the root directory of the second hard disk, the data is directly transferred to the second hard disk. In the hard disk data access system of claim 6, the second hard disk data access module deletes data from the second hard disk by the following steps:
When the mark of the data in the root directory of the second hard disk is deleted, the ID number of the data is obtained;
Querying, in the record table, the storage area of the data on the second hard disk according to the ID number of the data;
The data is found and deleted on the second hard disk according to the storage area, and all the records in the record table are deleted.