CN1595366A - A memory-space saving multi-computer system sharing backup method - Google Patents
A memory-space saving multi-computer system sharing backup method Download PDFInfo
- Publication number
- CN1595366A CN1595366A CN 200410019882 CN200410019882A CN1595366A CN 1595366 A CN1595366 A CN 1595366A CN 200410019882 CN200410019882 CN 200410019882 CN 200410019882 A CN200410019882 A CN 200410019882A CN 1595366 A CN1595366 A CN 1595366A
- Authority
- CN
- China
- Prior art keywords
- file
- data
- backup
- server
- files
- 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.)
- Granted
Links
Images
Abstract
The invention relates to a memory space saving method with multiple computer systems sharing the back-up files. First every file data is given a distinguish code ID, which can be the usable file size adding the MD5 value of the contents of the file. The data contents of the back-up files are associated to the distinguish code IDs to set up a data contents list with the data contents and the data contents list stored on the server. At the same time, a list corresponding to the back-up files, which is composed of the back-up file names and the distinguish code IDs, is set up on the server. When one computer alternates, if the back-up file exists, there is no need to alternate and store the file, with only the recording of the corresponding relationship between the file and its data is needed. The back-up efficiency is highly improved through this invention.
Description
[technical field]: the present invention relates to a kind of computer system data be cloned backup, particularly system for computer data backup in the LAN (Local Area Network).
[background technology]: along with the development of computing machine, computer system installation configuration becomes and becomes increasingly complex, simultaneously, because of computer virus, invasion, maloperation etc., system and data are very easily destroyed, reinstall system, drive application program etc., not only complexity but also consuming time, therefore produced some to the product that backup is cloned by system, when system's generation problem, can directly recover system by cloning the data mapping that generates when backing up.
In every computing machine, operating system and application program take a large amount of hard drive spaces usually, generally about 2-4GB, if the above data in every computing machine are all backed up, need huge network storage space, every computing machine, version of every backup all will take identical server stores space, so present product, can't support effectively that many people back up simultaneously, and the backup of many versions, can not realize simple and safe system management.
[summary of the invention]: the present invention seeks to overcome the deficiencies in the prior art, a kind of computer system duplication method of saving storage space is provided, to many computing machines, deposit by data sharing, realize many versions of system data network backup, reach that to take network storage space little, the purpose that backup rate is fast.
At the feature of data in the computing machine, identical operations system and application program are installed in any computing machine, and its data content major part is identical, and small number of bad alienation data are only arranged.Especially in same unit (LAN (Local Area Network)), operating system and application program that computing machine is installed are roughly the same, and differentiation is littler.Therefore, consider above feature, if can realize the mode that data sharing is deposited, with the identical data in the various computing machine, only need to preserve portion on server, can save the server hard disc space greatly like this, make multimachine, many versions backups become possibility.
In the computer system, data are deposited with file mode, and to identical operations system and application program, in the various computing machine, exhausted most file content is identical.If these computer systems are backed up, same file only needs the storage portion to get final product.But in the various computing machine, filename, the file that size is all identical, content is not necessarily identical, and the file of different filenames, content also may be identical, so will realize sharing storage, first necessary condition, be data, the code (ID) of a unique difference be arranged, if two file contents are identical each file, then this code is identical, otherwise code is identical scarcely.This code file available size adds the MD5 value representation of file content, and wherein MD5 is universal standard algorithm in the industry, and each syllable dependent of its result and file content to the data of identical size, can guarantee its result's uniqueness.
Above file ID has been arranged, before each file backup, all calculated,, then no longer needed to store, otherwise just its transmission has been stored on the server if these ID corresponding file data have left on the server after calculating.
The back-up storage mode of a file as shown in Figure 1, file name is the difference code ID of this document, i.e. the MD5 value of original size and content, file content is the original file data content, or the data content after the compression.
Indicate conversion by suitable file, the backup file name list is separated with data file, by filename, file content ID sets up related, and structure as shown in Figure 2.
To computing machine 1 and computing machine 2, before the backup, at first generate separately independently backup file tabulation, then All Files is backed up.On server, preserve the tabulation of the All Files that had backed up, and the deposit position of pairing file data.When certain computer backup, through comparison file data content ID,, then no longer need back-up storage this document on server if the file that is backed up has existed, the corresponding relation that only need note down this document and its data gets final product.
Advantage of the present invention and good effect: by sharing of Backup Data, most file does not need the actual server that sends to during backup, therefore realizes the significantly reduction of volume of transmitted data, and backup rate significantly improves, and taking also of the network bandwidth significantly reduced; By using the present invention, make many computer system duplications become possibility, take up room can be reduced to common mode 1/10th or still less, backup efficient significantly promotes, efficiently solve because of system failure maloperation, the system recovery problem that virus infraction etc. cause.
[description of drawings]:
Fig. 1 is the back-up storage mode structural representation of file;
Fig. 2 is backup file name list and data file corresponding tables and Backup Data structure connection synoptic diagram;
Fig. 3 is a system backup schematic flow sheet that computing machine is concrete.
[embodiment]:
Embodiment:
As shown in Figure 3, be a system for computer backup schematic flow sheet, idiographic flow is described as follows:
3-1: the backup beginning, read the file that needs backup one by one;
3-2: according to file size, and the MD5 value that file content calculated, the ID of formation this document;
3-3: this ID is sent to server, inquires about, check whether this document backed up;
3-4:, back up if not backup then is sent to server with this document data;
3-5: the data file with this document and ID correspondence thereof joins backup list;
3-6: check whether the All Files backup is finished, and does not finish, and reads next file, backs up;
3-7: all finish, finish.
The concrete comparison example of using:
To share standby system (ezDRP), implementation result of the present invention is described below.
In the common computer, operating system and application program, so that Windows XP system to be installed, tool software such as Office are example, take 3GB left and right sides data space usually.In the various computing machine, above system and the identical ratio of application program institute include file are about 90-95%, and promptly same file is about more than the 2.8GB.
When the computer system to above Typical Disposition backed up, single computer just needed backup 3GB data to server.Supposing has 20 computing machines in the unit, realize whole computer systems are backed up, and then needs to back up about 60GB data, takies a large amount of server stores space, and if carry out the backup of many versions, then each version all will back up the 3GB data again.
And adopt method of the present invention, screen out the same file in the various computing machine fast, this document is only preserved portion, according to above situation, back up whole 20 computer systems, only need to back up 2.8+0.2*20=6.8GB, Backup Data only is about 11% of a common mode, saves a large amount of storage spaces.And therefore can realize many version backups, every computing machine increases a backup version, only increases about 0.2G Backup Data at most.
Claims (2)
1, a kind of many computer systems of saving storage space are shared backup method, it is characterized in that this method finishes according to following steps:
The first, each backup file is provided a well-determined difference code ID;
The second, the data content of backup file and difference code ID are set up related, set up a data contents list, and with data content and data content list storage on server;
Three, the backup file title is related with difference code ID foundation, and on server, set up a backup file corresponding lists that comprises backup file title and difference code ID.
2, a kind of many computer systems of saving storage space according to claim 1 are shared backup method, it is characterized in that well-determined difference code ID file available size adds the MD5 value representation of file content.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2004100198822A CN1315048C (en) | 2004-07-06 | 2004-07-06 | A memory-space saving multi-computer system sharing backup method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2004100198822A CN1315048C (en) | 2004-07-06 | 2004-07-06 | A memory-space saving multi-computer system sharing backup method |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1595366A true CN1595366A (en) | 2005-03-16 |
CN1315048C CN1315048C (en) | 2007-05-09 |
Family
ID=34663107
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2004100198822A Expired - Fee Related CN1315048C (en) | 2004-07-06 | 2004-07-06 | A memory-space saving multi-computer system sharing backup method |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN1315048C (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101950336A (en) * | 2010-08-18 | 2011-01-19 | 奇智软件(北京)有限公司 | Method and device for removing malicious programs |
CN102163167A (en) * | 2011-03-02 | 2011-08-24 | 奇智软件(北京)有限公司 | Method and device for rescuing system |
CN101784995B (en) * | 2007-08-23 | 2012-06-20 | 微软公司 | Staged, lightweight backup system |
US8255998B2 (en) | 2005-08-16 | 2012-08-28 | Emc Corporation | Information protection method and system |
CN102708192A (en) * | 2012-05-15 | 2012-10-03 | 华为技术有限公司 | Method, system and device for sharing documents |
US8468604B2 (en) | 2005-08-16 | 2013-06-18 | Emc Corporation | Method and system for detecting malware |
CN104077338A (en) * | 2013-06-25 | 2014-10-01 | 腾讯科技(深圳)有限公司 | Data processing method and device |
CN101243400B (en) * | 2005-08-16 | 2015-03-25 | Emc公司 | Information protection method and system |
CN106294025A (en) * | 2016-08-15 | 2017-01-04 | 广东欧珀移动通信有限公司 | The method for down loading of a kind of terminal software and device |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI691860B (en) * | 2018-10-23 | 2020-04-21 | 財團法人工業技術研究院 | Method and computer system for preventing malicious software from attacking files of the computer system and corresponding non-transitory computer readable storage medium |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2924905B2 (en) * | 1988-03-25 | 1999-07-26 | エヌシーアール インターナショナル インコーポレイテッド | File backup system |
US6154852A (en) * | 1998-06-10 | 2000-11-28 | International Business Machines Corporation | Method and apparatus for data backup and recovery |
-
2004
- 2004-07-06 CN CNB2004100198822A patent/CN1315048C/en not_active Expired - Fee Related
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8255998B2 (en) | 2005-08-16 | 2012-08-28 | Emc Corporation | Information protection method and system |
CN101243400B (en) * | 2005-08-16 | 2015-03-25 | Emc公司 | Information protection method and system |
US8468604B2 (en) | 2005-08-16 | 2013-06-18 | Emc Corporation | Method and system for detecting malware |
CN101784995B (en) * | 2007-08-23 | 2012-06-20 | 微软公司 | Staged, lightweight backup system |
CN101950336A (en) * | 2010-08-18 | 2011-01-19 | 奇智软件(北京)有限公司 | Method and device for removing malicious programs |
WO2012022211A1 (en) * | 2010-08-18 | 2012-02-23 | 北京奇虎科技有限公司 | A method and a device for removing malicious programs |
CN101950336B (en) * | 2010-08-18 | 2015-08-26 | 北京奇虎科技有限公司 | A kind of method and apparatus removing rogue program |
CN102163167A (en) * | 2011-03-02 | 2011-08-24 | 奇智软件(北京)有限公司 | Method and device for rescuing system |
CN102708192A (en) * | 2012-05-15 | 2012-10-03 | 华为技术有限公司 | Method, system and device for sharing documents |
US9900167B2 (en) | 2012-05-15 | 2018-02-20 | Huawei Technologies Co., Ltd. | Document sharing method, system, and device |
CN104077338A (en) * | 2013-06-25 | 2014-10-01 | 腾讯科技(深圳)有限公司 | Data processing method and device |
CN104077338B (en) * | 2013-06-25 | 2016-02-17 | 腾讯科技(深圳)有限公司 | A kind of method of data processing and device |
US10268715B2 (en) | 2013-06-25 | 2019-04-23 | Tencent Technology (Shenzhen) Company Limited | Systems and methods for data processing |
CN106294025A (en) * | 2016-08-15 | 2017-01-04 | 广东欧珀移动通信有限公司 | The method for down loading of a kind of terminal software and device |
Also Published As
Publication number | Publication date |
---|---|
CN1315048C (en) | 2007-05-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1721261B1 (en) | System and method for recovery units in databases | |
US6865655B1 (en) | Methods and apparatus for backing up and restoring data portions stored in client computer systems | |
CN100547555C (en) | A kind of data backup system based on fingerprint | |
US7305577B2 (en) | Data isolation system and method | |
US7707184B1 (en) | System and method for snapshot full backup and hard recovery of a database | |
CA2178213C (en) | Incremental backup system | |
CN101079896A (en) | A multi-availability mechanism coexistence framework of concurrent storage system | |
CN102713856B (en) | Method and system for recovering file system of computer system | |
CN1315048C (en) | A memory-space saving multi-computer system sharing backup method | |
CN103414712B (en) | A kind of distributed virtual desktop management system and method | |
CN101814045A (en) | Data organization method for backup services | |
JP4075203B2 (en) | Data backup system | |
JP5516575B2 (en) | Data insertion system | |
CN105550062B (en) | The data reflow method restored based on continuous data protection and time point browsing | |
CN103294167B (en) | A kind of low energy consumption cluster-based storage reproducing unit based on data behavior and method | |
CN1902595A (en) | Coordinated storage management operations in replication environment | |
CN102012947A (en) | Method and system for online backup of database | |
US7725669B1 (en) | Backup and restore operations using coherency groups for ISB protocol systems | |
CN1801107A (en) | Data recovery method | |
US8527454B2 (en) | Data replication using a shared resource | |
CN101201767A (en) | System and method for backup and recovery of magnetic disc mirroring of computer system data | |
CN103377100A (en) | Data backup method, network nodes and system | |
CN101256528A (en) | Magnetic disk data backup system and method supporting nought backup window | |
CN1275476C (en) | Clustering system for utilizing sharing internal memory in mobile communiation system and realizing method thereof | |
CN1456980A (en) | Hard disc data duplicating and reproducing method |
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 | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070509 Termination date: 20140706 |
|
EXPY | Termination of patent right or utility model |