CN102902487A - Hard disk drive data access method and system - Google Patents
Hard disk drive data access method and system Download PDFInfo
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- CN102902487A CN102902487A CN2011102087097A CN201110208709A CN102902487A CN 102902487 A CN102902487 A CN 102902487A CN 2011102087097 A CN2011102087097 A CN 2011102087097A CN 201110208709 A CN201110208709 A CN 201110208709A CN 102902487 A CN102902487 A CN 102902487A
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Abstract
A hard disk drive data access method includes the steps of a creating step, namely creating a second hard disk drive root directory in a computer first hard disk drive with preset sector memory capacity, and creating a record chart in a second hard disk drive with non-preset sector memory capacity; and second hard disk drive access, namely when a user performs data storage, data access or data deletion to the second hard disk drive root directory, storing the data in the second hard disk drive by using the first hard disk drive as a data transfer station, or accessing or deleting the data through the second hard disk drive. The recording chart is used for recording the memory areas of the data in the second hard disk drive. The invention further provides a hard disk drive data access system. Data access for a hard disk drive which is not 512Byte in sector memory capacity can be achieved by the method and system.
Description
Technical field
The present invention relates to a kind of data access method and system, particularly a kind of hard disc data access method and system.
Background technology
Generally a minute magnetic track obtains the sector to conventional hard as the unit etc. take 512Byte, so the memory capacity of each sector is 512Byte.The hard disk that present many kinds of sector storage capacity are not 512Byte comes out gradually, is that hard disk, the sector storage capacity of 520Byte is the hard disk of 4096Byte such as the memory capacity of sector, etc.Because compatible problem, do not have the sector storage capacity not to be driver corresponding to hard disk of 512Byte in the operating systems such as certain operations system such as Windows XP, Linux, thereby these operating systems do not support that to the sector storage capacity be not the data access of the hard disk of 512Byte.Although the driver that hard disk is corresponding in the retouching operation system can realize that to the sector storage capacity be not the data access of the hard disk of 512Byte, but along with hard disk is more and more because of the difference kind of sector storage capacity, revise driver corresponding to hard disk and also be difficult to make the operating system support to the data access of the hard disk of all kinds.
Summary of the invention
In view of above content, be necessary to provide a kind of hard disk access method, can be take the sector storage capacity as preset value first hard disk of (such as 512Byte) as the data relay station, realize that operating system is not the data access of the second hard disk of this preset value to the sector storage capacity.
Also be necessary to provide a kind of harddisk access system, the first hard disk that can be take the sector storage capacity as preset value realizes that as the data relay station operating system is not the data access of the second hard disk of this preset value to the sector storage capacity.
A kind of hard disc data access method, may further comprise the steps: establishment step: in the sector storage capacity of computing machine is the first hard disk of preset value, set up second a hard disk root directory, and at the sector storage capacity for not setting up a record sheet in the second hard disk of this preset value, this record sheet is used for each data of record at the storage area of this second hard disk; And the second hard disc data access step: when the user stores data, visit data or deletion data in this second hard disk root directory, be stored to these data in this second hard disk take this first hard disk as the data relay station or these data of access or delete this data from this second hard disk.
A kind of hard disc data access system, comprise: set up module, the first hard disk that is used for sector storage capacity at computing machine and is preset value is set up second a hard disk root directory, and at the sector storage capacity for not setting up a record sheet in the second hard disk of this preset value, this record sheet is used for each data of record at the storage area of this second hard disk; And the second hard disc data access module, be used for when the user stores data, visit data or deletion data to this second hard disk root directory, be stored to these data in this second hard disk take this first hard disk as the data relay station or from this second hard disk, access these data or delete this data.
Compared to prior art, hard disk access method of the present invention and system, can be take the sector storage capacity as preset value first hard disk of (such as 512Byte) as the data relay station, realize that operating system is not the data access of the second hard disk of this preset value to the sector storage capacity.
Description of drawings
Fig. 1 is the running environment figure of hard disc data access system of the present invention preferred embodiment.
Fig. 2 is the functional block diagram of hard disc data access system of the present invention preferred embodiment.
Fig. 3 is an exemplary plot of record sheet among Fig. 1.
Fig. 4 is the process flow diagram of hard disc data access method storage data of the present invention preferred embodiment.
Fig. 5 is the process flow diagram of hard disc data access method visit data of the present invention preferred embodiment.
Fig. 6 is the process flow diagram of hard disc data access method deletion data of the present invention preferred embodiment.
The main element symbol description
| |
100 |
| 512 hard disks | 1 |
| The hard disc |
10 |
| Operating system | 11 |
| Non-512 hard disk root directorys | 12 |
| Non-512 hard disks | 2 |
| |
20 |
| Set up |
101 |
| |
102 |
| The |
103 |
| |
104 |
| The |
105 |
| |
106 |
| |
107 |
| The |
108 |
| The |
109 |
| |
110 |
Following embodiment further specifies the present invention in connection with above-mentioned accompanying drawing.
Embodiment
Consulting shown in Figure 1ly, is the running environment figure of hard disc data access system of the present invention preferred embodiment.In the present embodiment, this hard disc data access system 10 is applied in the computing machine 100, this computing machine 100 comprises that a sector storage capacity is first hard disk (hereinafter to be referred as " 512 hard disk ") 1 of 512 bytes (Byte), and second hard disk (hereinafter to be referred as " non-512 hard disks ") 2 that the sector storage capacity is not 512Byte.This 512 hard disk 1 and these non-512 hard disks 2 communication connections.
Described hard disc data access system 10 is stored in this 512 hard disk 1, in this 512 hard disk 1 operating system 11 is installed also.The driver that 512 hard disks, 1 correspondence is arranged in this operating system 11, this driver make operating system 11 carry out access to the data in 512 hard disks 1.Simultaneously, owing to there is not the driver of non-512 hard disks, 2 correspondences in the operating system 11, operating system 11 can't directly be carried out access to the data in non-512 hard disks 2.Described data are catalogue or file.This catalogue is tree structure, and namely parent directory can comprise sub-directory, but include file in the sub-directory.This document can be audio frequency, text document, video etc.
Setting up in 512 hard disks 1 has non-512 hard disk root directory 12(or is called the second hard disk root directory 12), these non-512 hard disk root directorys 12 are the corresponding form of non-512 hard disks 2, namely In the view of the user, non-512 hard disks 2 are a file in 512 hard disks 1, i.e. non-512 hard disk root directorys 12.If the user stores data in these non-512 hard disk root directorys 12, represent that then the user wishes to store data in these non-512 hard disks 2.
Hard disc data access system 10 is used for setting up described non-512 hard disk root directorys 12, and when the user to this in non-512 hard disk root directorys 12 during access data, take 512 hard disks 1 as the data relay station these data are deposited in non-512 hard disks 2, or from non-512 hard disks 2, read this data.
Consulting shown in Figure 2ly, is the functional block diagram of hard disc data access system of the present invention preferred embodiment.This hard disc data access system 10 comprises to be set up module 101, acquisition module 102, the first judge module 103, searches module 104, the first shift module 105, logging modle 106, enquiry module 107, the second shift module 108, the second judge module 109 and removing module 110.Alleged module is to finish the program segment of a specific function in the present embodiment, is more suitable in describing the implementation of software in computing machine 100 than program.In other embodiments, also module 102-110 can be combined module of called after, such as the second hard disc data access module.
Set up module 101 and be used for setting up described non-512 hard disk root directorys 12 at 512 hard disks 1, and in non-512 hard disks 2, set up a record sheet 20.The initial content of record sheet 20 is empty.Because non-512 hard disks 2 are stored data in the mode of chain type storage, therefore data may be stored in several storage areas of non-512 hard disks 2, and record sheet 20 is used for each data of record at start address and the termination address of each storage area of non-512 hard disks 2.
As shown in Figure 3, be an exemplary plot of record sheet 20.Recording the storage area of directory A in non-512 hard disks 2 in this record sheet 20.Include file a in this directory A, this document a are stored in two storage areas in non-512 hard disks 2, and the start address of first storage area is * * 00, and termination address is * * 01, and the start address of second storage area is * * 05, and termination address is * * 07.
The first judge module 103 is used for reading the content of record sheet 20, and judges according to the size of this content and these the first data whether non-512 hard disks 2 have enough free memories to store this first data.Particularly, owing to recorded the storage area of all data in non-512 hard disks 2 that is stored in non-512 hard disks 2 in the record sheet 20, be that record sheet 20 has recorded the storage space that non-512 hard disks 2 have used, total storage space of non-512 hard disks 2 is deducted the storage space that this has used, can obtain the free memory of non-512 hard disks 2.If not, then judging non-512 hard disks 2 greater than the size of these the first data, the free memory of 512 hard disks 2 have enough free memories to store this first data.
The record of the storage space that has used according to non-512 hard disks 2 in the record sheet 20 can calculate the free memory of non-512 hard disks 2.Because the data in non-512 hard disks 2 may be stored in discontinuous mode, therefore described free memory may be comprised of discontinuous a series of memory block.For example shown in Figure 3, the start address of first storage area of file a in non-512 hard disks 2 is * * 00, termination address is * * 01, the start address of second storage area is * * 05, termination address is * * 07, between this first storage area and second storage area, form a memory block because not storing data, the start address of this memory block is the termination address of this first storage area, and the termination address of this memory block is the start address of this second storage area.
The first shift module 105 is used for reading this first data from non-512 hard disk root directorys 12, by SCSI(Small Computer System Interface, small computer system interface) order with these first data transfer to search that module 104 finds be used for this first data storage zone of storage, and in non-512 hard disk root directorys 12, preserve the mark of these the first data, this mark comprises and the attribute such as title ID number of the first data.When the user accesses the mark of the first data, i.e. addressable these first data.For example, these first data are one section videos, and the mark of the first data is icons of this video, when the user clicks this icon, can start and play this video.
The second shift module 108 is used for reading this second data at start address and the termination address of non-512 hard disks, 2 all storage areas according to these second data from non-512 hard disks 2, and these second data are transferred in the non-512 hard disk root directorys 12, for the user these second data are conducted interviews.
The second judge module 109 is used for when the user stops to access these second data, closes as the video of the second data or application program etc. such as the user, judges whether these second data are modified in non-512 hard disk root directorys 12.
The first shift module 105 also is used for judging that when the second judge module 109 these second data are when non-512 hard disk root directorys 12 have been modified, amended these second data are transferred in non-512 hard disks 2, and by the record of logging modle 106 these the second data of modification in record sheet 20, comprise start address and the termination address of the storage area of these second data in non-512 hard disks 2.
The first shift module 105 also is used for judging these second data when the second judge module 109 and when non-512 hard disk root directorys 12 are not modified, directly these second data is transferred in non-512 hard disks 2.
Consulting shown in Figure 4ly, is the process flow diagram of hard disc data access method of the present invention storage data preferred embodiment.
Before entering step S11, set up module 101 and in 512 hard disks 1, set up described non-512 hard disk root directorys 12 first, and in non-512 hard disks 2, set up record sheet 20.The initial content of this record sheet 20 is empty.This record sheet 20 is used for each data of record at start address and the termination address of each storage area of non-512 hard disks 2.
Step S11, when storing the first data in the user Xiang Fei 512 hard disk root directorys 12, acquisition module 102 obtains title and the size of these the first data, and is this first data allocations corresponding ID number.
Step S12, the first judge module 103 reads the content in the record sheet 20, and judges according to the size of this content and these the first data whether non-512 hard disks 2 have enough free memories to store this first data.If not 512 hard disks 2 have enough free memories to store this first data, then enter step S13, if not 512 hard disks 2 do not have enough free memories to store this first data, then process ends.
Step S13 searches module 104 and finds out from non-512 hard disks 2 for this first data storage zone of storage according to the content of record sheet 20.
Step S14, the first shift module 105 reads this first data from non-512 hard disk root directorys 12, by scsi command these first data are transferred to describedly for this first data storage of storage zone, and in non-512 hard disk root directorys 12, preserved this first data markers.
Step S15, logging modle 106 is with the title of these the first data and ID number, and start address and the termination address of all storage areas of these first data in non-512 hard disks 2 are recorded in the record sheet 20.
Consulting shown in Figure 5ly, is the process flow diagram of hard disc data access method visit data of the present invention preferred embodiment.
Step S21, when the mark of second data of access in the non-512 hard disk root directorys 12, acquisition module 102 obtains ID number of these the second data.
Step S22, enquiry module 107 is according to start address and the termination address of ID number these second data of inquiry all storage areas in non-512 hard disks 2 in record sheet 20 of these the second data.
Step S23, the second shift module 108 reads this second data according to start address and the termination address of these second data all storage areas in non-512 hard disks 2 from non-512 hard disks 2, and these second data are transferred in the non-512 hard disk root directorys 12, for the user these second data are conducted interviews.
Step S24, when the user stopped to access these second data, the second judge module 109 judged whether these second data are modified in non-512 hard disk root directorys 12.If these second data are modified, then enter step S25 in non-512 hard disk root directorys 12.If these second data are not modified, then enter step S26 in non-512 hard disk root directorys 12.
Step S25, the first shift module 105 is transferred to non-512 hard disks 2 with amended these second data, and by the record of logging modle 106 these the second data of modification in record sheet 20, comprise start address and the termination address of the storage area of these second data in non-512 hard disks 2.
Step S26, the first shift module 105 directly transfer to these second data in non-512 hard disks 2.
Consulting shown in Figure 6ly, is the process flow diagram of hard disc data access method of the present invention deletion data preferred embodiment.
Step S31, when the user deleted the mark of the 3rd data in the non-512 hard disk root directorys 12, acquisition module 102 obtained ID number of the 3rd data.
Step S32, enquiry module 107 is according to start address and the termination address of ID number inquiry the 3rd data all storage areas in non-512 hard disks 2 in record sheet 20 of the 3rd data.
Step S33, removing module 110 finds and deletes the 3rd data according to start address and the termination address of the 3rd data all storage areas in non-512 hard disks 2 in non-512 hard disks 2, delete simultaneously the 3rd data all records in record sheet 20, comprise the title of the 3rd data and ID number and start address and the termination address of the 3rd data all storage areas in non-512 hard disks 2.
In the present embodiment, be sector storage capacity take the first hard disk 1 as 512Byte, the sector storage capacity of the second hard disk 2 is that non-512Byte is that example is illustrated.Those skilled in the art should understand, and the sector storage capacity of this first hard disk 1 also can be for other preset values, and such as 4096Byte, then the sector storage capacity of the second hard disk 2 is non-4096Byte.
Above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not break away from the spirit and scope of technical solution of the present invention.
Claims (10)
1. hard disc data access method is characterized in that the method may further comprise the steps:
Establishment step: in the sector storage capacity of computing machine is the first hard disk of preset value, set up second a hard disk root directory, and at the sector storage capacity for not setting up a record sheet in the second hard disk of this preset value, this record sheet is used for each data of record at the storage area of this second hard disk; And
The second hard disc data access step: when the user stores data, visit data or deletion data in this second hard disk root directory, be stored to these data in this second hard disk take this first hard disk as the data relay station or these data of access or delete this data from this second hard disk.
2. hard disc data access method as claimed in claim 1 is characterized in that, in described the second hard disc data access step, the method that data is stored to this second hard disk may further comprise the steps:
Obtaining step one: when storage data in this second hard disk root directory, obtain title and the size of these data, and be the corresponding ID of this data allocations number;
Finding step: in the second hard disk, find out for this data storage zone of storage according to the content of this record sheet;
Transfer step one: these data are transferred to described for this data storage zone of storage, and preserved the mark of these data in the second hard disk root directory, this mark comprises the title of these data and ID number;
Recording step one: with the title of these data and ID number, and the storage area of these data in the second hard disk is recorded in the record sheet.
3. hard disc data access method as claimed in claim 2 is characterized in that, when the second hard disk has enough free memories to store these data, just carries out described finding step.
4. hard disc data access method as claimed in claim 1 is characterized in that, in described the second hard disc data access step, the method for visit data may further comprise the steps from this second hard disk:
Obtaining step two: when the mark of the data of access in the second hard disk root directory, obtain these data ID number;
Query steps one: according to the ID number storage area of these data of inquiry in the second hard disk in record sheet of these data;
Transfer step two: read this data according to the storage area of these data in the second hard disk, and these data are transferred in the second hard disk root directory, for the user these data are conducted interviews;
Determining step: when stopping to access these data, judge whether these data are modified in the second hard disk root directory;
Transfer step three: when these data have been modified in the second hard disk root directory, amended these data are transferred in the second hard disk, and revised the record of these data in record sheet;
Transfer step four: when these data are not modified in the second hard disk root directory, directly these data are transferred in the second hard disk.
5. hard disc data access method as claimed in claim 1 is characterized in that, in described the second hard disc data access step, the method for deletion data may further comprise the steps from this second hard disk:
Obtaining step three: when the mark of the data of deletion in the second hard disk root directory, obtain these data ID number;
Query steps two: according to the ID number storage area of these data of inquiry in the second hard disk in record sheet of these data;
Delete step: in the second hard disk, find and delete this data according to this storage area, delete simultaneously these data all records in record sheet.
6. a hard disc data access system is characterized in that, this system comprises:
Set up module, the first hard disk that is used for sector storage capacity at computing machine and is preset value is set up second a hard disk root directory, and at the sector storage capacity for not setting up a record sheet in the second hard disk of this preset value, this record sheet is used for each data of record at the storage area of this second hard disk; And
The second hard disc data access module, be used for when the user stores data, visit data or deletion data to this second hard disk root directory, be stored to these data in this second hard disk take this first hard disk as the data relay station or from this second hard disk, access these data or delete this data.
7. hard disc data access system as claimed in claim 6 is characterized in that, described the second hard disc data access module is stored to data in this second hard disk by following steps:
When storage data in this second hard disk root directory, obtain title and the size of these data, and be the corresponding ID of this data allocations number;
In the second hard disk, find out for this data storage zone of storage according to the content of this record sheet;
These data are transferred to described for this data storage zone of storage, and preserved the mark of these data in the second hard disk root directory, this mark comprises the title of these data and ID number;
With the title of these data and ID number, and the storage area of these data in the second hard disk is recorded in the record sheet.
8. hard disc data access system as claimed in claim 7, it is characterized in that, when the second hard disk had enough free memories to store these data, described the second hard disc data access module was just found out in the second hard disk for this data storage zone of storage according to the content of this record sheet.
9. hard disc data access system as claimed in claim 6 is characterized in that, described the second hard disc data access module is by following steps visit data from this second hard disk:
When the mark of the data of access in the second hard disk root directory, obtain these data ID number;
The ID number storage area of these data of inquiry in the second hard disk in record sheet according to these data;
Read this data according to the storage area of these data in the second hard disk, and these data are transferred in the second hard disk root directory, for the user these data are conducted interviews;
When stopping to access these data, judge whether these data are modified in the second hard disk root directory;
When these data have been modified in the second hard disk root directory, amended these data are transferred in the second hard disk, and revised the record of these data in record sheet;
When these data are not modified in the second hard disk root directory, directly these data are transferred in the second hard disk.
10. hard disc data access system as claimed in claim 6 is characterized in that, described the second hard disc data access module is deleted data by following steps from this second hard disk:
When the mark of the data of deletion in the second hard disk root directory, obtain these data ID number;
The ID number storage area of these data of inquiry in the second hard disk in record sheet according to these data;
In the second hard disk, find and delete this data according to this storage area, delete simultaneously these data all records in record sheet.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110208709.7A CN102902487B (en) | 2011-07-25 | 2011-07-25 | Hard disc data access system |
| TW100126920A TWI483108B (en) | 2011-07-25 | 2011-07-29 | Method and system for storing and accessing data of hard disk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110208709.7A CN102902487B (en) | 2011-07-25 | 2011-07-25 | Hard disc data access system |
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| Publication Number | Publication Date |
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| CN102902487A true CN102902487A (en) | 2013-01-30 |
| CN102902487B CN102902487B (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110208709.7A Expired - Fee Related CN102902487B (en) | 2011-07-25 | 2011-07-25 | Hard disc data access system |
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| Country | Link |
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| CN (1) | CN102902487B (en) |
| TW (1) | TWI483108B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110909354A (en) * | 2019-11-29 | 2020-03-24 | 四川效率源信息安全技术股份有限公司 | Method for cleaning malicious codes in firmware area of Western digital hard disk |
| CN111338576A (en) * | 2020-02-20 | 2020-06-26 | 深圳供电局有限公司 | Big data storage system and method |
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| US6185580B1 (en) * | 1998-06-24 | 2001-02-06 | International Business Machines Corporation | Physical information and extensions file and file system translator |
| CN1564517A (en) * | 2004-03-26 | 2005-01-12 | 清华大学 | Memory-network memory-magnetic disc high speed reliable storage system and its reading/writing method |
| CN101055512A (en) * | 2007-06-01 | 2007-10-17 | 威盛电子股份有限公司 | Data access method |
| CN101446924A (en) * | 2008-12-16 | 2009-06-03 | 成都市华为赛门铁克科技有限公司 | Method and system for storing and obtaining data |
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| US7085480B1 (en) * | 1998-03-14 | 2006-08-01 | Sony Corporation | AV/C commands for accessing a hard disk device |
| JP2001022527A (en) * | 1999-07-12 | 2001-01-26 | Nec Niigata Ltd | Method for externally accessing hdd included in computer |
| TWI249101B (en) * | 2002-04-11 | 2006-02-11 | Via Tech Inc | Method and related apparatus for using a dynamic random access memory to substitute for a hard disk drive |
| TW200725296A (en) * | 2005-12-27 | 2007-07-01 | Inventec Corp | Data automatic classification and access method for expanding a virtual hard disk |
| TW200905489A (en) * | 2007-07-27 | 2009-02-01 | Jade Quantum Technologies Inc | Diskless computer system using single identification code to provide access service for Internet and disks, and its data transmitting and receiving method thereof |
| WO2009123603A1 (en) * | 2008-03-31 | 2009-10-08 | Hewlett-Packard Development Company, L.P. | Systems and methods for accessing hard disk drives |
| TW201039130A (en) * | 2009-04-30 | 2010-11-01 | Inventec Corp | Hard drive access method |
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- 2011-07-25 CN CN201110208709.7A patent/CN102902487B/en not_active Expired - Fee Related
- 2011-07-29 TW TW100126920A patent/TWI483108B/en not_active IP Right Cessation
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6185580B1 (en) * | 1998-06-24 | 2001-02-06 | International Business Machines Corporation | Physical information and extensions file and file system translator |
| CN1564517A (en) * | 2004-03-26 | 2005-01-12 | 清华大学 | Memory-network memory-magnetic disc high speed reliable storage system and its reading/writing method |
| CN101055512A (en) * | 2007-06-01 | 2007-10-17 | 威盛电子股份有限公司 | Data access method |
| CN101446924A (en) * | 2008-12-16 | 2009-06-03 | 成都市华为赛门铁克科技有限公司 | Method and system for storing and obtaining data |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110909354A (en) * | 2019-11-29 | 2020-03-24 | 四川效率源信息安全技术股份有限公司 | Method for cleaning malicious codes in firmware area of Western digital hard disk |
| CN111338576A (en) * | 2020-02-20 | 2020-06-26 | 深圳供电局有限公司 | Big data storage system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI483108B (en) | 2015-05-01 |
| CN102902487B (en) | 2016-06-08 |
| TW201305816A (en) | 2013-02-01 |
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