CN102945208A - Multiuser hard disk system and implementation method thereof - Google Patents
Multiuser hard disk system and implementation method thereof Download PDFInfo
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- CN102945208A CN102945208A CN2012104118874A CN201210411887A CN102945208A CN 102945208 A CN102945208 A CN 102945208A CN 2012104118874 A CN2012104118874 A CN 2012104118874A CN 201210411887 A CN201210411887 A CN 201210411887A CN 102945208 A CN102945208 A CN 102945208A
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Abstract
The invention is suitable for the technical field of computers, and provides an implementation method of a multiuser hard disk system. The method comprises the steps: after hard disk initialization, hard disk firmware carries out sorting processing on mapping tables from logic address to physical address, which are stored in a hard disk; and different account identities are distributed to each type of mapping table, wherein each type of mapping table corresponds to one different system account. The invention further correspondingly provides a multiuser hard disk system for implementing the method. Therefore, different system accounts can be established independently of a specific operation system, and the data between different accounts are virtually independent, so that the data privacy of each account is ensured.
Description
Technical field
The present invention relates to field of computer technology, relate in particular to a kind of multi-user 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 the multi-user uses, can be set up different accounts.Specific implementation has following dual mode usually: 1) by operating system, a plurality of users in the system are managed, generally by the management of control documents access rights realization to different user data; 2) according to methods such as ATA agreement and file system rule hard disk is carried out subregion, different system is installed on different subregions, utilizes Bootloader that the visible hard drive space of different operating system is managed.More than the system of account hard disk data management more than two kinds have following defective: existing scheme is actually the management of carrying out under same address mapping table, so can't carry out simple and easy effective isolation to different account datas, user's processing ease influences each other, and the management for different account datas, depend on operating system, the characteristic of operating system itself is large on the impact of account data management.
In summary, existing computing machine Multi-user management system obviously exists inconvenience and defective in actual use, so be necessary to be improved.
Summary of the invention
For above-mentioned defective, the object of the present invention is to provide a kind of multi-user hard disk system and its implementation, it can realize minute account management of hard disk easily, and guarantees the security of each account.
To achieve these goals, the invention provides the implementation method of a kind of multi-user hard disk system, described method comprises:
Behind the described hard disk initialization, with the logical address of preserving in the described hard disk to the processing of classifying of the mapping table of physical address;
The described mapping table of each class is respectively distributed a different account identification, the system account that described each class mapping table corresponding is different.
According to the implementation method of multi-user hard disk of the present invention system, described method also comprises:
Receive and carry out the select command of described system account, load address mapping table corresponding to described system account.
According to the implementation method of multi-user hard disk of the present invention system, described method also comprises:
Receive and carry out the switching command of described system account, the mapping table that the current system account is corresponding switches to mapping table corresponding to another system account.
According to the implementation method of multi-user hard disk of the present invention system, described method also comprises: different system account is encrypted arrange.
According to the implementation method of multi-user hard disk of the present invention system, described method also comprises: after system starts operation, upgrade and also preserve mapping table corresponding to current system account.
The present invention also provides a kind of multi-user hard disk system accordingly, comprising:
Sort module, be used for described hard disk initialization after, with the logical address of preserving in the described hard disk to the processing of classifying of the mapping table of physical address;
Sign arranges module, is used for the described mapping table of each class is respectively distributed a different account identification, the system account that described each class mapping table corresponding is different.
According to multi-user hard disk of the present invention system, described system also comprises:
The first command execution module, the select command for receiving and carry out described system account loads address mapping table corresponding to described system account.
According to multi-user hard disk of the present invention system, described system also comprises:
The second command execution module, for the switching command that receives and carry out described system account, the mapping table that the current system account is corresponding switches to mapping table corresponding to another system account.
According to multi-user hard disk of the present invention system, described system also comprises encrypting module, is used for different system account encrypted arranging.
According to multi-user hard disk of the present invention system, described system also comprises update module, after being used for described system and starting operation, upgrades and also preserves mapping table corresponding to current system account.
The present invention is by behind hard disk initialization, hard disk firmware is classified to the mapping table in the hard disk, and to the different account identification of each class distribution, the corresponding system account of each class mapping table, hard disk firmware is distinguished account and is managed mapping table, and loads different address mapping table according to different accounts after the start, so that each account can only get access to the data of oneself in computer system, the physical address of other account datas is invisible to it, can not read and not write, and guarantees data security whereby.
Description of drawings
Fig. 1 is the structural representation of the multi-user hard disk system of one embodiment of the invention;
Fig. 2 is the structural representation of the multi-user hard disk system of another embodiment of the present invention;
Fig. 3 is the implementation method process flow diagram of the multi-user hard disk system of one embodiment of the invention;
Fig. 4 is the process flow diagram of concrete application of the multi-user hard disk system of one embodiment of the invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
Referring to Fig. 1, the invention provides a kind of multi-user hard disk system 100, this system 100 is preferably the solid state hard disc system, and it comprises that sort module 10 and sign arrange module 20, and sort module 10 and sign arrange the firmware that module 20 all belongs to hard disk, and is concrete:
Sign arranges module 20, is used for the described mapping table of each class is respectively distributed a different account identification, the system account that described each class mapping table corresponding is different.Concrete, the corresponding inhomogeneous address mapping table of each system account, hard-disk system 100 can be distinguished different system account according to account identification, conveniently sets up whereby a plurality of system account.When system 100 starts, load corresponding mapping table according to the different system account of selecting.
In conjunction with Fig. 2, hard-disk system 100 also comprises the first command execution module 30, the second command execution module 40, encrypting module 50 and update module 60 again.When system 100 started, the user can according to system suggestion select corresponding system account, and the first command execution module 30 receives the also select command of executive system account, and loads address mapping table corresponding to system account of selecting.When the user needs the switched system account, can according to system suggestion reselect the system account that needs execution, the second command execution module 40 receives and carries out the switching command of described system account, and the mapping table that the current system account is corresponding switches to mapping table corresponding to another system account.Better, each system account can be encrypted setting by encrypting module 50, makes other user can not at will enter other system account, guarantees whereby the privacy of data.When system's 100 certain account of operation, the mapping table under the account is upgraded synchronously by update module 60 and preserves.
The data access of the different accounts on the same computing machine of the present invention is isolated by bottom, has realized the virtual of hard disk monopolized, and has reduced the complexity of account management, has improved the reusability of computer resource and the safe independence of each account data.The present invention can effectively manage and user-isolated data, and does not rely on computer operating system, and Linux/Windows/UNIX can both support.Simultaneously, the data interface bus of this programme and hard disk storage devices is irrelevant, memory device applicatory comprises solid state hard disc and/or the hybrid hard disk of each class interface, such as solid state hard disc and the hybrid hard disk (combination of mechanical hard disk and solid state hard disc) of the bus interface such as PATA/SATA/SAS/PCIE/USB.
Referring to Fig. 3, the invention provides the implementation method of a kind of multi-user hard disk system, it can realize that the method comprises by system 100 as shown in Figure 1:
Step S301, behind the hard disk initialization, with the logical address of preserving in the hard disk to the processing of classifying of the mapping table of physical address.
Step S302 respectively distributes a different account identification with the described mapping table of each class, the system account that each class mapping table corresponding is different.
Referring to Fig. 4, of the present invention one concrete application process specifically comprises:
Step S401, system's 100 opening initializations receive the user to the select command of system account.
Step S402 loads mapping table corresponding to system account of selecting.After carrying out this step, system 100 namely enters the account, the user can operate within the account accordingly, need to illustrate, after the user logined by the account, only can obtain the data corresponding to address of the mapping table corresponding with the account, and for other data in the hard disk, this user can't access and obtain.
Step S403 receives the user to the select command of system account.In concrete the application, if same computer changes by different user's operations, then usually need to switch corresponding user account, the system account that the user only needs to select to need to switch under the guiding of the input-output system of system 100 gets final product.
Step S404, the mapping table that the current system account is corresponding switch to the mapping table corresponding to system account of new selection.
Step S405 receives the user to the operation of current account data.The user can be to the data respective operations under the account, such as deletion, copy etc. after logining a certain system account.
Step S406, real-time update is also preserved mapping table corresponding to current system account.
Preferably, the user can system 100 arranges each system account and logs in separately password, guarantees whereby independence and the security of each account.
In sum, the present invention is by behind hard disk initialization, hard disk firmware is classified to the mapping table in the hard disk, and each class is distributed different account identification, the corresponding system account of each class mapping table, hard disk firmware is distinguished account and is managed mapping table, and load different address mapping table according to different accounts after the start, so that each account can only get access to the data of oneself in computer system, the physical address of other account datas is invisible to it, can do not read and not write, guaranteed data security whereby.
Certainly; the present invention also can have other various embodiments; in the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (10)
1. the implementation method of a multi-user hard disk system is characterized in that, described method comprises:
Behind the described hard disk initialization, with the logical address of preserving in the described hard disk to the processing of classifying of the mapping table of physical address;
The described mapping table of each class is respectively distributed a different account identification, the system account that described each class mapping table corresponding is different.
2. the implementation method of multi-user hard disk according to claim 1 system is characterized in that described method also comprises:
Receive and carry out the select command of described system account, load address mapping table corresponding to described system account.
3. the implementation method of multi-user hard disk according to claim 1 system is characterized in that described method also comprises:
Receive and carry out the switching command of described system account, the mapping table that the current system account is corresponding switches to mapping table corresponding to another system account.
4. the implementation method of multi-user hard disk according to claim 1 system is characterized in that described method also comprises: different system account is encrypted arrange.
5. the implementation method of multi-user hard disk according to claim 1 system is characterized in that described method also comprises: after system starts operation, upgrade and also preserve mapping table corresponding to current system account.
6. a multi-user hard disk system is characterized in that, comprising:
Sort module, be used for described hard disk initialization after, with the logical address of preserving in the described hard disk to the processing of classifying of the mapping table of physical address;
Sign arranges module, is used for the described mapping table of each class is respectively distributed a different account identification, the system account that described each class mapping table corresponding is different.
7. multi-user hard disk according to claim 6 system is characterized in that described system also comprises:
The first command execution module, the select command for receiving and carry out described system account loads address mapping table corresponding to described system account.
8. multi-user hard disk according to claim 6 system is characterized in that described system also comprises:
The second command execution module, for the switching command that receives and carry out described system account, the mapping table that the current system account is corresponding switches to mapping table corresponding to another system account.
9. multi-user hard disk according to claim 6 system is characterized in that described system also comprises encrypting module, is used for different system account encrypted arranging.
10. multi-user hard disk according to claim 6 system is characterized in that described system also comprises update module, after being used for described system and starting operation, upgrades and also preserves mapping table corresponding to current system account.
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| CN104216796A (en) * | 2013-06-04 | 2014-12-17 | 联想(北京)有限公司 | Data backup and recovery method and electronic device |
| 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 |
| CN105389266A (en) * | 2015-10-16 | 2016-03-09 | 联想(北京)有限公司 | Data management method and apparatus |
| 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 |
| CN112015668A (en) * | 2019-05-31 | 2020-12-01 | 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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