CN102945208B - Multiuser hard disk system and its implementation - Google Patents
Multiuser hard disk system and its implementation Download PDFInfo
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- CN102945208B CN102945208B CN201210411887.4A CN201210411887A CN102945208B CN 102945208 B CN102945208 B CN 102945208B CN 201210411887 A CN201210411887 A CN 201210411887A CN 102945208 B CN102945208 B CN 102945208B
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- 238000013507 mapping Methods 0.000 claims abstract description 62
- 238000000034 method Methods 0.000 claims abstract description 34
- 238000004321 preservation Methods 0.000 claims description 2
- 238000007726 management method Methods 0.000 description 6
- 241001269238 Data Species 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000013523 data management Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The present invention is applicable to field of computer technology, it is provided that the implementation method of a kind of multiuser hard disk system, and described method includes: after described hard disk initialization, and the mapping table of the logical address preserved in described hard disk to physical address is carried out classification process by hard disk firmware；Mapping table described in each class is respectively distributed a different account identification, the corresponding different system account of described each class mapping table.The present invention also correspondingly provides a kind of multiuser hard disk system realizing said method.Whereby, the present invention can not rely on specific operating system, and it is empty quasi-independent for setting up the data between different system account, and different accounts, it is ensured that the privacy of each account data.
Description
Technical field
The present invention relates to field of computer technology, particularly relate to a kind of multiuser hard disk system and its implementation.
Background technology
Along with the raising of the penetration of computer use, it is extremely important that information security also becomes.Existing computer system,
When multi-user uses, different accounts can be set up.Implement and generally have following two mode: 1) logical
Crossing operating system, be managed users multiple in system, it is right typically to be realized by control file access authority
The management of different user data；2) hard disk carried out point according to methods such as ATA agreement and file system rule
District, different system is installed on different subregion, utilizes the Bootloader visible hard disk to different operating system
Space is managed.Both the above many accounts hard disk data management system has following defects that existing scheme is real
It is the management carried out under same address mapping table on border, so different account datas simply cannot be had
The isolation of effect, the processing ease of user influences each other, and for the management of different account datas, depends on behaviour
Making system, the impact that account data is managed by the characteristic of operating system itself is big.
In summary, existing computer Multi-user management system, there will naturally be in actual use inconvenience with
Defect, it is therefore necessary to improved.
Summary of the invention
For above-mentioned defect, it is an object of the invention to provide a kind of multiuser hard disk system and realization side thereof
Method, it can realize point account management of hard disk easily, and guarantee the safety of each account.
To achieve these goals, the present invention provides the implementation method of a kind of multiuser hard disk system, described side
Method includes:
After described hard disk initialization, the mapping table of the logical address preserved in described hard disk to physical address is entered
Row classification processes；
Mapping table described in each class is respectively distributed a different account identification, described each class mapping table correspondence one
Different system account.
The implementation method of the multiuser hard disk system according to the present invention, described method also includes:
Receive and perform the select command of described system account, load address corresponding to described system account and map
Table.
The implementation method of the multiuser hard disk system according to the present invention, described method also includes:
Receive and perform the switching command of described system account, by mapping table switching corresponding for current system account
To the mapping table that another system account is corresponding.
The implementation method of the multiuser hard disk system according to the present invention, described method also includes: by different be
System account encryption is arranged.
The implementation method of the multiuser hard disk system according to the present invention, described method also includes: system start-up is transported
After row, update and preserve the mapping table that current system account is corresponding.
The present invention also correspondingly provides a kind of multiuser hard disk system, including:
Sort module, after described hard disk initialization, by the logical address of preservation in described hard disk to physics
The mapping table of address carries out classification process；
Mark arranges module, for respectively distributing a different account identification by mapping table described in each class, described
The corresponding different system account of each class mapping table.
According to the multiuser hard disk system of the present invention, described system also includes:
First command execution module, for receiving and perform the select command of described system account, loads described
The address mapping table that system account is corresponding.
According to the multiuser hard disk system of the present invention, described system also includes:
Second command execution module, for receiving and perform the switching command of described system account, will be currently
System mapping table corresponding to account switches to the mapping table that another system account is corresponding.
According to the multiuser hard disk system of the present invention, described system also includes encrypting module, for by different
System account encryption is arranged.
According to the multiuser hard disk system of the present invention, described system also includes more new module, for described system
After startup optimization, update and preserve the mapping table that current system account is corresponding.
The present invention is by after hard disk initialization, and the mapping table in hard disk is classified by hard disk firmware, and right
The account identification that the distribution of each class is different, the corresponding system account of each class mapping table, hard disk firmware distinguishes account
Family loads different address mapping tables, so that each account exists according to different accounts after managing mapping table, and start
Can only get the data of oneself in computer system, the physical address of other account datas is invisible to it,
Will not be read and write, guaranteed data security whereby.
Accompanying drawing explanation
Fig. 1 is the structural representation of the multiuser hard disk system of one embodiment of the invention；
Fig. 2 is the structural representation of the multiuser hard disk system of another embodiment of the present invention；
Fig. 3 is the implementation method flow chart of the multiuser hard disk system of one embodiment of the invention；
Fig. 4 is the flow chart of the concrete application of the multiuser hard disk system of one embodiment of the invention.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and reality
Execute example, the present invention is further elaborated.Only should be appreciated that specific embodiment described herein
Only in order to explain the present invention, it is not intended to limit the present invention.
Seeing Fig. 1, the present invention provides a kind of multiuser hard disk system 100, and it is hard that this system 100 is preferably solid-state
Disc system, it includes that sort module 10 and mark arrange module 20, and sort module 10 and mark arrange mould
Block 20 belongs to the firmware of hard disk, concrete:
Sort module 10 is after hard disk initialization, by the mapping of the logical address that preserves in hard disk to physical address
Table carries out classification process.It is said that in general, hard-disk system 100 receives external command, data are operated, number
According to access be the physical address that by mapping table, the logical address of access is corresponded to hard disk, then could visit
Ask and operate the data of correspondence.When, after hard disk initialization, the address in hard disk can be mapped by sort module 10
Table carries out classification process, concrete, such as the mapping table of logical address 1110～1210 correspondence is divided into first
Class, the mapping table of logical address 1211～1311 correspondence is divided into Equations of The Second Kind, by that analogy.Need explanation,
Logical address for of a sort mapping table needs not to be continuous print, and it can be compartment.The most permissible
Be logical address be the mapping table of odd number be the first kind, logical address be even number be divided into Equations of The Second Kind etc., it is possible to
To be other irregular setting.
Mark arranges module 20, for respectively distributing a different account identification, institute by mapping table described in each class
State the corresponding different system account of each class mapping table.Concrete, each system account correspondence inhomogeneity
Address mapping table, hard-disk system 100 can distinguish different system account, whereby side according to account identification
Just multiple system account is set up.When system 100 starts, load correspondence according to the different system account selected
Mapping table.
In conjunction with Fig. 2, hard-disk system 100 also includes that the first command execution module 30, second is ordered and performs mould
Block 40, encrypting module 50 and more new module 60.When system 100 starts, user can carry according to system
Showing the corresponding system account of selection, the first command execution module 30 receives and performs the select command of system account,
And the address mapping table that the system account that loads selection is corresponding.When user needs switched system account, permissible
According to system suggestion reselecting the system account needing to perform, the second command execution module 40 receives and performs
The switching command of described system account, switches to another system account by mapping table corresponding for current system account
Corresponding mapping table.Preferably, each system account can be encrypted setting by encrypting module 50, makes
Other user can not at will enter other system account, ensures the privacy of data whereby.When system 100 is transported
During certain account of row, the mapping table under the account is carried out synchronized update by more new module 60 and is preserved.
The data access of the different accounts on the same computer of the present invention is isolated by bottom, it is achieved that to hard disk
Virtual exclusive, reduce the complexity of account management, improve the durability of computer resource and each account number
According to safe independence.The present invention can effectively manage and user-isolated data, and does not relies on computer behaviour
Making system, Linux/Windows/UNIX can support.Meanwhile, this programme and the data of hard disk storage devices
Interface bus is unrelated, and storage device applicatory includes solid state hard disc and/or the hybrid hard disk of each class interface, as
(mechanical hard disk is with solid for the solid state hard disc of the EBIs such as PATA/SATA/SAS/PCIE/USB and hybrid hard disk
The combination of state hard disk).
Seeing Fig. 3, the invention provides the implementation method of a kind of multiuser hard disk system, it can be by such as figure
System 100 shown in 1 realizes, and the method includes:
Step S301, after hard disk initialization, by the mapping table of the logical address that preserves in hard disk to physical address
Carry out classification process.
Step S302, respectively distributes a different account identification, each class mapping table by mapping table described in each class
A corresponding different system account.
Seeing Fig. 4, the concrete application process of the one of the present invention specifically includes:
Step S401, system 100 opening initialization, receive user's select command to system account.
Step S402, loads the mapping table that the system account selected is corresponding.System 100 after performing this step is
Entering the account, user can operate within the account accordingly, needs explanation, and user is by being somebody's turn to do
After account is logined, it is only capable of the data that the address of the acquisition mapping table corresponding with the account is corresponding, and for hard disk
Other interior data, this user cannot access and obtain.
Step S403, receives user's select command to system account.In concrete application, if same calculating
Machine changes by different user operations, then typically require the user account that switching is corresponding, and user only need to be in system 100
Input-output system guide the lower system account selecting to need switching.
Step S404, switches to the newly selected system account by mapping table corresponding for current system account corresponding
Mapping table.
Step S405, receives user's operation to current account data.User can after logining a certain system account
With to the data respective operations under the account, such as delete, copy etc..
Step S406, real-time update also preserves the mapping table that current system account is corresponding.
Preferably, each system account can be arranged with system 100 and individually log in password by user, protects whereby
Demonstrate,prove independence and the safety of each account.
In sum, the present invention is by after hard disk initialization, and the mapping table in hard disk is carried out by hard disk firmware
Classification, and the account identification different to the distribution of each class, the corresponding system account of each class mapping table, hard disk
Firmware is distinguished after account manages mapping table, and start and is loaded different address mapping tables according to different accounts, with
Make each account can only get the data of oneself, the physical address pair of other account datas in computer systems
It is invisible, will not be read and write, guarantees data security whereby.
Certainly, the present invention also can have other various embodiments, without departing substantially from present invention spirit and the feelings of essence thereof
Under condition, those of ordinary skill in the art work as can make various corresponding change and deformation according to the present invention, but
These change accordingly and deform the protection domain that all should belong to appended claims of the invention.
Claims (6)
1. the implementation method of a multiuser hard disk system, it is characterised in that described method includes:
After described hard disk initialization, the mapping table of the logical address preserved in described hard disk to physical address is entered
Row classification processes；
Mapping table described in each class is respectively distributed a different account identification, described each class mapping table correspondence one
Different system account, and the logical address of of a sort mapping table can be continuous print, it is also possible to it is interval
Formula；
Receive and perform the select command of described system account, load address corresponding to described system account and map
Table；
Described method also includes: after system start-up runs, updates and preserves the mapping that current system account is corresponding
Table.
The implementation method of multiuser hard disk system the most according to claim 1, it is characterised in that described
Method also includes:
Receive and perform the switching command of described system account, by mapping table switching corresponding for current system account
To the mapping table that another system account is corresponding.
The implementation method of multiuser hard disk system the most according to claim 1, it is characterised in that described
Method also includes: different system account encryptions arranged.
4. a multiuser hard disk system, it is characterised in that including:
Sort module, after described hard disk initialization, by the logical address of preservation in described hard disk to physics
The mapping table of address carries out classification process；
Mark arranges module, for respectively distributing a different account identification by mapping table described in each class, described
The corresponding different system account of each class mapping table, and the logical address of of a sort mapping table can be company
Continue, it is also possible to be compartment；
First command execution module, for receiving and perform the select command of described system account, loads described
The address mapping table that system account is corresponding；
Described system also includes more new module, after described system start-up runs, updates and preserves current system
The mapping table that system account is corresponding.
Multiuser hard disk system the most according to claim 4, it is characterised in that described system is also wrapped
Include:
Second command execution module, for receiving and perform the switching command of described system account, will be currently
System mapping table corresponding to account switches to the mapping table that another system account is corresponding.
Multiuser hard disk system the most according to claim 4, it is characterised in that described system also includes
Encrypting module, for arranging different system account encryptions.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210411887.4A CN102945208B (en) | 2012-10-25 | 2012-10-25 | Multiuser hard disk system and its implementation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210411887.4A CN102945208B (en) | 2012-10-25 | 2012-10-25 | Multiuser hard disk system and its implementation |
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| CN102945208A CN102945208A (en) | 2013-02-27 |
| CN102945208B true CN102945208B (en) | 2016-09-14 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104182349A (en) | 2013-05-27 | 2014-12-03 | 联想(北京)有限公司 | Information processing method and electronic device |
| CN104216796B (en) * | 2013-06-04 | 2018-02-09 | 北京联想核芯科技有限公司 | A kind of data backup, restoration methods and electronic equipment |
| CN104933374A (en) * | 2015-07-07 | 2015-09-23 | 山东中孚信息产业股份有限公司 | Storage medium isolation method |
| CN105389266B (en) * | 2015-10-16 | 2019-03-01 | 北京联想核芯科技有限公司 | A kind of data managing method and device |
| CN109711206A (en) * | 2018-12-17 | 2019-05-03 | 杭州华澜微电子股份有限公司 | A kind of safe hard disk of multi-user and its control method |
| CN109815737A (en) * | 2019-01-30 | 2019-05-28 | 山东华芯半导体有限公司 | A kind of single-deck multi-user's physical isolation method based on address of cache |
| CN112015668B (en) * | 2019-05-31 | 2023-03-31 | 西安诺瓦星云科技股份有限公司 | Physical address acquisition method and device and multimedia playing box |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1170160A (en) * | 1996-07-09 | 1998-01-14 | 李志淮 | Method and device for safety accessing files in DOS |
| JP3445525B2 (en) * | 1999-04-02 | 2003-09-08 | 松下電器産業株式会社 | Arithmetic processing device and method |
| CN1340765A (en) * | 2000-08-29 | 2002-03-20 | 廖瑞民 | Method for dividing one hard disk into more partitions separated fully |
| CN100433195C (en) * | 2003-12-31 | 2008-11-12 | 深圳市朗科科技股份有限公司 | Flash memory medium data writing method |
| EP1717814B1 (en) * | 2004-02-20 | 2012-09-19 | Spansion LLc | Semiconductor storage device and semiconductor storage device control method |
| CN100383761C (en) * | 2005-03-10 | 2008-04-23 | 联想(北京)有限公司 | Method for setting hard disk physical partition |
| CN1959587A (en) * | 2005-11-01 | 2007-05-09 | 联想(北京)有限公司 | Method for realizing isolation among multiple users of using same computer |
| CN101436233B (en) * | 2007-11-12 | 2010-09-01 | 中国长城计算机深圳股份有限公司 | Hard disk multi-user partition switch control method, system and computer terminal |
| CN101296313B (en) * | 2008-04-21 | 2010-06-16 | 上海大学 | SDRAM address mapping and read-write rotation method for real-time interlaced and non-interlaced scanning |
| CN101661378B (en) * | 2008-08-29 | 2011-09-21 | 智微科技股份有限公司 | Disk array 1 system and reading method for improving reading efficiency |
| CN101826021A (en) * | 2009-03-03 | 2010-09-08 | 英业达股份有限公司 | Multiplex virtual hard disk method |
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