CN100555232C - A kind of data backup and restore of hard disk linux document system and authority control method - Google Patents
A kind of data backup and restore of hard disk linux document system and authority control method Download PDFInfo
- Publication number
- CN100555232C CN100555232C CNB200410073443XA CN200410073443A CN100555232C CN 100555232 C CN100555232 C CN 100555232C CN B200410073443X A CNB200410073443X A CN B200410073443XA CN 200410073443 A CN200410073443 A CN 200410073443A CN 100555232 C CN100555232 C CN 100555232C
- Authority
- CN
- China
- Prior art keywords
- hard disk
- linux
- password
- data
- file system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
A kind of data backup and restore of hard disk linux document system and authority control method are lost the Linux data of important Linux data and secret by the problem of other people unauthorized access with solving the user because of maloperation.It is by marking off a zone that is independent of any file system, operating system in the high-end address of hard disk, and important Linux partition data is backed up, reduced in this zone as Linux data backup protected location.It is by controlling Linux data security in the hard disk up hill and dale to DISK to Image setting user cipher, user right.
Description
Technical field
The present invention relates to the Computer Data Security field, especially the backup of hard disc of computer Linux file system data, reduction and authority control method.
Background technology
Linux is because its efficient height, security well are used as the operating system of server widely, and hard disk is as the most important data carrier of Linux, and its safety of data is one of Linux data security field sixty-four dollar question always.Generally the hard disc data for linux system has two main danger, and one is because the user is skilled inadequately and maloperation occurs and make important loss of data to Linux, and another then is that confidential data in the hard disk linux document system is by other people unauthorized access.
At present be for the significant data employing that the hard disk fearness is lost important Linux subregion to be made an image file, and this image file is stored in the another one subregion to basic guard method with above-mentioned two kinds of danger; File to secret is then encrypted storage; when needs visit encrypt file, need password to decipher; these two steps all are by file operation; its security, reliability rely on the file system of this machine hard disk very much; all backups all will be lost if the file system of this machine hard disk is collapsed; and the generic-document system be easy to ruined, so this guard method based on file system has serious defective.For the file of having encrypted still have by other people crack may, so by encrypting the control documents visit is not a kind of method that holds in close confidence, and for classified papers one by one encrypt, deciphering is the pretty troublesome thing of part, complicated operations has also reduced applicability.
Summary of the invention
In order to solve the problem of the strong and control of authority imprecision of file system dependence in the existing Linux data guard method, poor practicability; the invention provides a kind of Linux data backup, method of reducing that is independent of file system, and cooperate the method to provide the method for managing security of the strict control of energy classified papers visits.This guard method can realize at short notice backup and reduction and control of authority to a large amount of Linux data by very simple several operations.
Technical scheme of the present invention is divided into three parts, is respectively Linux data back up method, Linux reduction of data method, Linux data safety control method.Linux data back up method, Linux reduction of data method are that will to solve the user skilled inadequately and the problem that maloperation makes important loss of data occurs to Linux, and the Linux data safety control method is will solve confidential data in the hard disk linux document system by the problem of other people unauthorized access.
1, Linux data back up method of the present invention specifically comprises following step:
(1) analysis needs the Linux data volume of backup and the behaviour in service of local hard drive, marks off a zone in the high-end address of hard disk, is used as Linux data backup protected location;
(2) taking out valid data to be backed up in the Linux subregion, its compression back is copied to Linux data protection district according to certain rule form the backup archives, is unit backup valid data with whole Linux subregion;
(3) protected location is locked after finishing backup operation, make Linux data backup protected location and hard disk low side address space isolate.
Linux data back up method of the present invention need mark a distinct area as the protected location at hard disk, and this is to realize by the main frame locality protection instruction set that defines in the hard disk ATA interface specification (Host Protected Area feature set).The order of two ATA is arranged: " reading the actual maximum address of hard disk (READ NATIVE MAX ADDRESS EXT) " and " disk read-write maximum address (SET MAX ADDRESS EXT) is set " among the Host Protected Area featureset." read the actual maximum address of hard disk " order return hard disk when dispatching from the factory by the actual maximum sector of the hard disk of manufacturers set address, this address is the physics limit of hard disk address." the disk read-write maximum address being set " is that the accessibility maximum sector of software read and write access address is set, and this instruction is set the back hard disk controller and can be refused any to the read and write access greater than the setting value address.If " disk read-write maximum address " is less than " the actual maximum sector of hard disk address " then can form one section space at most significant end address place.This section space guarantees to be independent of operating system control by the ata interface standard; this section space can not be subjected to the influence of any software, virus operation under the prerequisite of not reusing setting " disk read-write maximum address "; so do not rely on any operating system and file system by the protected location of using SET MAX ADDRESS EXT order to divide, stable reliable guarantee arranged.
The concrete division operation in protected location roughly is at first to use READ NATIVE MAX ADDRESS EXT order to obtain this machine " the actual maximum sector of hard disk address "; using " the actual maximum sector of hard disk address " to deduct the needed amount of capacity in protected location more promptly gets the protected location and gets start address; begin to the protected location that " the actual maximum sector of hard disk address " is exactly division from the start address of gained, but the protected location of this moment does not also lock.Again the protected location start address is set " disk read-write maximum address " as the command parameter of SET MAX ADDRESS EXT after finishing the data backup operation, can finish locking of protected location.
Linux data back up method of the present invention is to back up at the valid data that used in the Linux file system, rather than all the sector contents in the Linux subregion are all backed up.The present invention resolves the system architecture of EXT2, EXT3 according to the design concept of Linux file system EXT2, EXT3, judges concrete effective sector in the subregion.The Linux file system structure that this judgement relates to has three: superblock (super block), group descriptor (group descriptor), bitmap table (bitmap block).At first obtain quantity, the start address of each group according to super block, obtain the skew of bitmap block in group according to the group descriptor that is right after in super block back then, the information among the ultimate analysis bitmap can be judged the distribution of valid data in the Linux file system.Valid data total amount addition with each Linux subregion promptly gets the required capacity in backup protection district.
The present invention is when the backup valid data, and the address of valid data record is the relative addresses of valid data at the place subregion.
The sector of valid data generally is a continuous distribution, so can use operation such as hard disk DMA to accelerate disk read-write, can use exented memory to increase handling capacity for the processing of compression.
2, Linux reduction of data method of the present invention specifically comprises following step:
(1) to the district's release of Linux backup protection, the feasible data that can visit the protected location;
(2) content in the analysis Linux data protection district finds the Linux subregion backup archives that need reduction;
(3) according to the Linux partition data size of need reduction and the target partition of each subregion actual size selective reduction of current hard disk;
(4) the backup archives of decompression Linux subregion cover target partition.
Linux reduction of data of the present invention at first will be opened the backup protection district makes software can visit the content of backup.Because the protected location is the most significant end space that is divided in hard disk; as long as can guarantee that software can have access to the most significant end space of hard disk so utilize SET MAX ADDRESS EXT instruction that " disk read-write maximum address " is set to " the actual maximum sector of hard disk address ", also promptly realize the protected location release.
The present invention can preserve the important parameters such as start address in backup protection district in distance " the actual maximum sector of hard disk address " fixed position in the backup protection district.After to the release of backup protection district, can find the reference position of protected location by resolving this fixed position.
Linux reduction of data of the present invention can realize certain backup subregion is reverted in any one subregion that meets the amount of capacity requirement, wherein amount of capacity requires to be meant backup subregion archives through after decompressing, and all the capacity of valid data is less than the capacity of target partition.Because the present invention is when the backup valid data, what write down is the relative address of valid data place subregion, also be to write target partition during restoring data, so, valid data are returned to any subregion all are fine as long as amount of capacity meets the requirements according to relative address.
3, Linux data safety control method of the present invention specifically comprises following step:
(1) user name and the virtual pin of the visit of hard disk management person's setting harddisk;
(2) set true password locking hard disk according to user right, forbid the request of all reading writing harddisks, and recording user name, virtual pin, hard disk sequence number;
(3) checking user name, virtual pin and the hard disk sequence number correctness before the access hard disk of at every turn starting shooting, the correct back of checking uses true password to the harddisk password release, otherwise hard disk keeps password locking.
Linux data safety control method of the present invention guarantees that to the access rights of DISK to Image confidential data in the Linux file system is not by other people unauthorized access by control.Defined safe mode characteristic instruction set (Security Mode feature set) in the hard disk ATA interface specification, safe mode characteristic instruction centralized definition some instructions be used for realizing the control of hard disk access rights specially.Definition according to the ata interface standard; hard disk management person can access to your password hard disk is locked; concrete instruction is SECURITY SET PASSWORD; hard disk after the locking all needs release at every turn after powering on; otherwise hard disk controller is refused any request of access; in unaccepted request command, also comprise main frame locality protection instruction set (Host Protected Area feature set); so after pattern characteristic instruction safe in utilization is to the hard disk locking; backup protection district on the hard disk must be can't release, inaccessible.Concrete instruction to the harddisk password release is SECURITY UNLOCK, and unlocking operation need provide user cipher, so do not worry that also the disabled user can use the backup protection district of instruction unpack hard disks such as SET MAX even the hard disk of locking is lost.Hard disk after the release can be finished normal read-write requests, but shutdown back hard disk can automatically reply lock-out state, again must be by the user cipher release when starting shooting next time.Utilize that safe mode characteristic instruction set can solve the problem of safety management well in the ata interface standard.
Its core of Linux data safety control method of the present invention is exactly to utilize safe mode characteristic instruction set to realize the password locking of Linux hard disk, other two passwords of two levels are used for locking, release but instructions such as SECURITY SET PASSWORD can only be provided with, be respectively Masterpassword and User password, only two passwords are unfavorable for the comprehensive safety management of Linux hard disk.Linux data safety control method of the present invention provides expansion by virtual pin is set to rank, user's number of password.
In safety management design, often require the keeper that multiple Permission Levels, a plurality of user can be set, the password that the present invention is provided with these users is all as virtual pin.In Linux data safety control method of the present invention, is not virtual pin by instructions such as SECURITY SET PASSWORD to the password of hard disk controller setting, but by two of realization software of the present invention decision passwords independently, independently the meaning be reach between two passwords of actual setting with virtual pin between all different.Realization software of the present invention just according to Linux hard disk user's difference requirement is set, authority is done corresponding operating.For the password that the lower user of rank is provided with, realization software of the present invention converts thereof into an independent password and as User password hard disk controller is set.For the password that the higher user of rank is provided with, realization software of the present invention converts thereof into an independent password and as Master password hard disk controller is set.Actual Master password, User password are set after, virtual pin, hard disk sequence number that user name, user are provided with can be recorded.Before Linux hard disk management person uses hard disk, realization software of the present invention will require the keeper that ID of oneself and the virtual pin that in the past this hard disk was provided with are provided, software just uses real independent password that hard disk is carried out unlock password after checking virtual pin, hard disk sequence number and user name.The method for managing security of virtual pin of the present invention can be done rank, the number of password expansion arbitrarily in theory.
User name, virtual pin and hard disk sequence number are recorded on the medium beyond the hard disk, and such as special-purpose USB encrypted U disk equipment etc., these special-purpose USB encrypted U disks that are provided with virtual pin are exactly the key of a unlock password concerning corresponding hard disk.
The invention has the beneficial effects as follows, can realize backing up in enormous quantities easily, and backed up data can not be subjected to the destruction of any software such as fdisk, not be subjected to the restriction of any operating system and file system for important Linux data; Wherein Bei Fen secret Linux data can realize data protection completely by security password is set, and can guarantee being perfectly safe of Linux hard disc data under operation very easily, even also do not worry data leak under the stolen situation of hard disk.
Description of drawings
Fig. 1 is the embodiment of a backup protection plot structure of the present invention.
Fig. 2 implements a preceding concrete hard disk structure of the present invention.
Fig. 3 is a hard disk structure embodiment after implementing Linux data back up method of the present invention on the hard disk of Fig. 2.
Fig. 4 is an embodiment of Linux data safety management of the present invention.
Embodiment
The present invention is further described with concrete enforcement below in conjunction with accompanying drawing.
Fig. 1 is a design implementation example in the backup protection of the present invention district, divides three parts: " archive set canned data district ", " data storage area, protected location ", " protected location system information district ".
" data storage area, protected location " is used for depositing the Linux subregion valid data that compressed, i.e. " archive set ".The present invention is to be stored in continuously in the protected location after the whole valid data compressions of each subregion, to form one " archive set " when the write protection district, and one " archive set " just write down whole valid data of a Linux subregion; " archive set canned data district " is used for the situation that takies of data storage area, record protection district, the essential information of each Linux subregion archive set that wherein data structure records arranged, and essential information can be used for differentiating " archive set " for the keeper when restoring operation; " protected location system information district " is used for preserving the important parameters such as " disk read-write maximum address " in backup protection district, last sector of appointment that the position is actual to be " the actual maximum sector of hard disk address ".
Method of the present invention can back up the subregion of a plurality of Linux, and corresponding one " archive set " of each subregion write down the respective stored information of a plurality of " archive sets " that exist in the data storage area, protected location in " archive set canned data district ".Can locate each " archive set " by the record in archive set canned data district, and can finish modification, deletion functions such as " archive sets " by the information of revising Ji Cunchuxinxiqu.After finding the backup protection district during reduction,, inquire about each Linux subregion content information that just obtains being backed up one by one by the situation that " the archive set canned data district " that analyze the protected location beginning can recognize protected location each " archive set "." archive set " that the keeper will reduce according to the Linux subregion content information selection that obtains.
Fig. 3 has provided at concrete hard disk structure shown in Figure 2 and has used a kind of implementation of the present invention.Hard disk has 5 subregions in the hard disk structure that Fig. 2 shows, wherein have 3 window file system (be respectively C: subregion, E: subregion, G: subregion) and the subregion of 2 Linux file system (be respectively D: subregion, F: subregion).
If will back up two Linux subregions among Fig. 2, the embodiment of the invention is at first set up the backup protection district, comprises following steps: (1), find each subregion according to the partition table of Fig. 2 hard disk, and the table of the BPB from subregion finds the partitioned file system banner.(2), after hard disk management person confirms to back up two Linux subregions, scan D respectively: subregion and F: the Linux filesystem information of subregion is to calculate the valid data capacity, and the system architecture that is specifically related to has three: superblock (super block), group descriptor (group descriptor), bitmap table (bitmap block).Obtain quantity, the start address of each group according to super block, obtain the skew of bitmap block in group according to the group descriptor that is right after in super block back then, the information among the ultimate analysis bitmap can be judged C: and F: the distribution of valid data in the subregion Linux file system.Valid data summation addition with each Linux subregion promptly obtains D: subregion and F: the total volume that section post needs.(3), analyze the high-end address of hard disk and take situation.If there is the total amount that does not have remaining space that subregion takies and remaining space can hold valid data in the high-end address of hard disk, then directly with the first address of the remaining space first address as the backup protection district, it promptly is " disk read-write maximum address " that this first address subtracts 1.Do not have remaining space or remaining space big inadequately if hard disk is high-end, then can delete last subregion and discharge high-end address.In hard disk structure shown in Figure 2, so place, high-end address does not have the remaining space present embodiment can point out the keeper will delete G: subregion is a backup protection district Free up Memory.Treat that the keeper can be with G after confirming: the subregion first address is as the first address in backup protection district, and it promptly is " disk read-write maximum address " that this first address subtracts 1.
The present invention sets up the backup protection district and preferably finishes when dividing fdisk, and general important Linux subregion has had planning when fdisk, reserves high-end address in conjunction with the planning of each subregion, can avoid in the future last subregion being forced to take.
Behind the first address of determining the backup protection district, set up three zones in backup protection district: " archive set canned data district ", " data storage area, protected location ", " protected location system information district ".The method of setting up is that information such as trizonal beginning and end address, area size are write last sector of hard disk, i.e. " protected location system information district ".
After setting up the backup protection district at two Linux subregions among Fig. 2, effective Linux data of two subregions will be read respectively, and compression generates two " archive sets " and deposits " data storage area, protected location " then successively in according to present embodiment." archive set " is in that deposit in before and after " data storage area, protected location " all can be with D: subregion and F: information such as start address, amount of capacity, backup date, the file system of subregion correspondence " archive set " represented, " archive set " code name deposit " archive set canned data district " in.
After finishing the full backup operation, the backup protection district is locked, be about to the protected location first address and set " disk read-write maximum address " as the command parameter of SET MAX ADDRESS EXT.
After finishing locking, hard-disk content becomes Fig. 3 by structure shown in Figure 2.
Linux reduction of data operation for Fig. 3 embodiment is as follows: at first release; promptly use READ NATIVE MAX ADDRESSEXT order to obtain Fig. 3 " the actual maximum sector of hard disk address "; and with " the actual maximum sector of hard disk address " command parameter setting " disk read-write maximum address " as SET MAX ADDRESSEXT; after this " disk read-write maximum address " equates that with " the actual maximum sector of hard disk address " promptly the backup protection district of hard disk opens fully.
Read last sector of " the actual maximum sector of hard disk address " appointment; be " the protected location system information district " in backup protection district; find the information in " archive set canned data district " in the backup protection district, the middle D of inquiry " data storage area, protected location " in " archive set canned data district ": and F: the situation of subregion " archive set ".Suppose to need to reduce D: the valid data of the former Linux of subregion, then according to D in " archive set canned data district ": the big or small select target subregion after the valid data reduction of " archive set " record requires the size after the target partition capacity reduces greater than valid data.If D: subregion be subregion minimum among Fig. 3 so target partition can be C:D:E:F: in any one.Suppose selected E: subregion is as the target partition of reduction.
Take out D: " archive set " record, the back of decompressing covers E: target partition re-uses SET MAX ADDRESS EXT order the backup protection district is locked after finishing covering.
From the Linux reduction of data process of Fig. 3 embodiment, if there is not security control, any software can pass through the order of SET MAXADDRESS EXT with the release of backup protection district.
Fig. 4 is facility example of safety management of the present invention, and Fig. 4 provides three grades of controls of authority, is respectively personal user's authority, enterprise customer's authority, enterprise's supervisory right.The personal user can only carry out release and normal the use to some Linux hard disks, can not change, delete, add personal user's password, can not remove the password-protected attribute of hard disk.Each start personal user uses before the hard disk must the input username and password, and user name, password will be formed a unique password with the unique sequence number of hard disk, can visit checking the correct back of password hard disk.Personal user's password can have many, offers different general users and uses; The enterprise customer can be provided with the password locking protection to hard disk; also can remove the attribute of harddisk password locking protection; removing after the cryptoguard hard disk, to need not password when each the startup addressable; for the hard disk enterprise customer after locking not only a guy user all rights of using and also can manage the personal user, can change, delete, add personal user's password.The enterprise customer with sequence number, personal user's password, enterprise customer's password of while recording disk, that is to say that personal user's password, enterprise customer's password are to work for unique hard disk when the password locking protection is set.Enterprise customer's password also can have a plurality of, offers different enterprise administrators; It is unique that enterprise is responsible for, and is used for preventing can't removing the password locking protection to hard disk when the enterprise customer from forgetting Password.Enterprise is responsible for all cryptoguard settings that generally only are used for deleting to hard disk.
In the embodiment shown in fig. 4, A is that enterprise is responsible for, and B1 and B2 are the enterprise customers, and C1～C2 is the personal user.These 10 Linux hard disk management persons are managing 5 hard disks, are respectively hard disk 1～hard disks 5.5 hard disks all have same enterprise to be responsible for password in the present embodiment, enterprise is responsible for password can be corresponding to Master password as the higher password of authority, is not responsible for the password that is provided with but a password independently but the actual Masterpassword that writes hard disk controller is not an enterprise.Also there is way to save even enterprise is responsible for password loss software like this.Enterprise customer's password and personal user's password can be corresponding to User password, the same actual User password that writes hard disk controller is not the password that is provided with of user but password independently respectively, but the actual User password that is provided with is different between 5 hard disks.Among Fig. 4 embodiment, each hard disk management person has a usb encrypted U disk, write down each keeper's user name, the virtual pin of setting and the hard disk sequence number of administration, each keeper must import the user name of oneself and the password of setting before the operation hard disk, information in this user name, password and hard disk sequence number of reading and the usb encrypted U disk relatively, the correct back of verification hard disk is just by unlock password, and operation is visited.
Claims (5)
1. the data backup and restore of a hard disk linux document system and authority control method, it is characterized in that, make the disk read-write maximum address less than the actual maximum sector of hard disk address by the main frame locality protection instruction SET MAX ADDRESS EXT order that defines in the hard disk ATA interface specification, then can form guard space in the address of hard disk most significant end, promptly mark off a zone as the protected location in the high-end address of hard disk, this protected location is divided into three parts: archive set canned data district, data storage area, protected location, protected location system information district; The data storage area, protected location is used for depositing the Linux subregion valid data that compressed; Archive set canned data district is used for the situation that takies of data storage area, record protection district; System information district, protected location is used for preserving the important parameter of protected location; The valid data that used in the Linux file system are backed up; rather than all the sector contents in the Linux subregion are all backed up; according to Linux file system EXT2; the design concept of EXT3; resolve the superblock in the Linux file system; group descriptor; bitmap table is judged effective sector concrete in the subregion; with whole Linux subregion is that unit backups in the protected location; the target partition of selecting when needed to satisfy capacity requirement arbitrarily recovers the Linux subregion that backs up; and the access rights of DISK to Image are guaranteed that confidential data in the Linux file system is not by other people unauthorized access by control; wherein realize the control of hard disk access rights and by the rank of virtual pin to password is set by the safe mode characteristic instruction set that defines in the hard disk ATA interface specification; user's number provides expansion, realizes the control of authority of Linux file system data.
2. the data backup and restore of Linux file system according to claim 1 and authority control method, it is characterized in that, the data backup of Linux file system is when being written into the protected location, be to be stored in continuously in the protected location after the whole valid data compressions of each subregion, to form an archive set; An archive set just writes down whole valid data of a Linux subregion; The address of valid data record is the relative addresses of valid data at the place subregion.
3. the data backup and restore of Linux file system according to claim 1 and authority control method is characterized in that, the data permission control of Linux file system comprises following steps:
(1) user name and the virtual pin of the visit of hard disk management person's setting harddisk;
(2) set true password locking hard disk according to user right, forbid the request of all reading writing harddisks, and recording user name, virtual pin, hard disk sequence number;
(3) checking user name, virtual pin and the hard disk sequence number correctness before the access hard disk of at every turn starting shooting, the correct back of checking uses true password to the harddisk password release, otherwise hard disk keeps password locking.
4. the data backup and restore of Linux file system according to claim 3 and authority control method, it is characterized in that, the control of the data permission of Linux file system is not virtual pin by SECURITY SET PASSWORD instruction to the password of hard disk setting, but by realizing two independently true passwords of software decision; Independently the meaning be reach between two true passwords of actual setting between true password and the virtual pin all different; Virtual pin for the lower user of rank is provided with converts thereof into the User password of a true password as access hard disk; Virtual pin for the higher user of rank is provided with converts thereof into the Master password of another true password as access hard disk.
5. the data backup and restore of Linux file system according to claim 4 and authority control method, it is characterized in that, the data permission control of Linux file system provides three grades of controls of authority, is respectively personal user's authority, enterprise customer's authority, enterprise's supervisory right; Enterprise is responsible for password can be corresponding to Master password as the higher password of authority, and enterprise customer's password and personal user's password are corresponding to User password; After the data permission of Linux file system was controlled at the actual Master of setting password, User password, virtual pin, hard disk sequence number that user name, user are provided with can be recorded; Before Linux hard disk management person uses hard disk, to require the keeper that user name of oneself and the virtual pin that in the past this hard disk was provided with are provided, after checking virtual pin, hard disk sequence number and user name, just use independently true password that hard disk is carried out unlock password.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410073443XA CN100555232C (en) | 2004-12-21 | 2004-12-21 | A kind of data backup and restore of hard disk linux document system and authority control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410073443XA CN100555232C (en) | 2004-12-21 | 2004-12-21 | A kind of data backup and restore of hard disk linux document system and authority control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1707440A CN1707440A (en) | 2005-12-14 |
| CN100555232C true CN100555232C (en) | 2009-10-28 |
Family
ID=35581376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200410073443XA Expired - Fee Related CN100555232C (en) | 2004-12-21 | 2004-12-21 | A kind of data backup and restore of hard disk linux document system and authority control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100555232C (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102103666A (en) * | 2009-12-18 | 2011-06-22 | 鸿富锦精密工业（深圳）有限公司 | Hot swap protection system and method for hard disk |
| CN102487384B (en) * | 2010-12-03 | 2015-06-03 | 联想(北京)有限公司 | Data processing method and device |
| CN102722500B (en) * | 2011-03-31 | 2017-03-15 | 中国电信股份有限公司 | A kind of Virtual File System and its implementation |
| CN102955720B (en) * | 2011-08-25 | 2015-09-09 | 北京中科智网科技有限公司 | A kind of method improving ext file system stability |
| CN102508743B (en) * | 2011-11-10 | 2014-06-04 | 武汉噢易科技有限公司 | Multi-point backup and real-time protection method for Linux file system |
| CN103530138A (en) * | 2012-07-02 | 2014-01-22 | 京信通信技术(广州)有限公司 | Method and device for protecting file system data based on embedded LINUX |
| CN104063641B (en) | 2014-06-23 | 2017-11-24 | 华为技术有限公司 | Hard disk secure access control method and hard disk |
| CN104239096A (en) * | 2014-09-02 | 2014-12-24 | 艾体威尔电子技术(北京)有限公司 | Method and unit for realizing security data partitions in Android system |
| CN105068889B (en) * | 2015-08-03 | 2018-05-25 | 四川效率源信息安全技术股份有限公司 | Recover the method for complete deletion file in Ext3/Ext4 |
| CN107544864B (en) * | 2016-06-24 | 2021-08-13 | 深信服科技股份有限公司 | Virtual machine data copying method and virtual machine data copying system |
| CN110941516B (en) * | 2019-12-06 | 2023-02-17 | 深圳市科力锐科技有限公司 | Operating system restoration method, device, equipment and storage medium |
| CN114594916B (en) * | 2022-03-19 | 2023-08-18 | 山西三叶虫信息技术股份有限公司 | Enterprise file storage management method and device, electronic equipment and storage medium |
-
2004
- 2004-12-21 CN CNB200410073443XA patent/CN100555232C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1707440A (en) | 2005-12-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9881013B2 (en) | Method and system for providing restricted access to a storage medium | |
| EP1164489B1 (en) | Distributed data archive device and system | |
| US7900061B2 (en) | Method and system for maintaining backup of portable storage devices | |
| EP2377063B1 (en) | Method and apparatus for providing access to files based on user identity | |
| CN102576334B (en) | Authentication and securing of write-once, read-many (WORM) memory devices | |
| US8218188B2 (en) | Electronic document storage apparatus, electronic document storage and reference system, electronic document transfer method, and computer readable medium for storing an electronic document | |
| US20030191938A1 (en) | Computer security system and method | |
| CN100555232C (en) | A kind of data backup and restore of hard disk linux document system and authority control method | |
| CN101430700B (en) | File management device and storage device | |
| CN101635018A (en) | Method of safety ferriage of USB flash disk data | |
| CN1702591A (en) | Hand disk locking and de-locking control scheme based on USB key apparatus | |
| KR101476030B1 (en) | Information storage device, control method of information storage device and recording medium | |
| CN109684866A (en) | A kind of safe USB disk system for supporting multi-user data to protect | |
| CN1707439B (en) | Data backup recovery and authority control method of hard disk NTFS file system | |
| US8255704B1 (en) | Pool encryption with automatic detection | |
| JP2003208234A (en) | Software recording part separation type information processor and software managing method | |
| JPH06309214A (en) | Data base system | |
| AU2008344947B2 (en) | System and method for securely storing information | |
| KR20100009330A (en) | The data elimination method using a mobile type storage system | |
| JP2004220400A (en) | File protecting method and file protection program | |
| CN111737722B (en) | Method and device for safely ferrying data between intranet terminals | |
| EP4040319B1 (en) | Devices and methods for safe storage of media containing personal data and erasure of stored personal data | |
| KR101498193B1 (en) | Method for managing data using memory card | |
| Danseglio | Securing Windows Server 2003 | |
| CN115509455A (en) | Method for protecting SSD partial space and storage system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 710075 Tang Feng International D block 18, Fenghui South Road, Xi'an High-tech Zone, Shaanxi, China 601, 602, 603, 604 Patentee after: Xi'an Sanming Polytron Technologies Inc. Address before: 710075 the 3 layer of photoelectron professional incubator No. 77, science and technology two road, Xi'an hi tech Industrial Development Zone, Shaanxi. Patentee before: XI'AN SAMING TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091028 Termination date: 20211221 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |