CN103793294A - Realtime backup method for business-critical data - Google Patents
Realtime backup method for business-critical data Download PDFInfo
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- CN103793294A CN103793294A CN201210432792.0A CN201210432792A CN103793294A CN 103793294 A CN103793294 A CN 103793294A CN 201210432792 A CN201210432792 A CN 201210432792A CN 103793294 A CN103793294 A CN 103793294A
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Abstract
The invention discloses a realtime backup method for business-critical data. The method includes the following steps: 1), creating a file list of the business-critical data; 2), detecting each file write-in operation of a file system in real time; 3), comparing a target file of the file write-in operation with the file list of the business-critical data; if the target file is matched with the file list, executing the file write-in operation, and creating a backup file for the target file of the file write-in operation after the file write-in operation is completed. By the method, a realtime copy can be created for the business-critical data according to the file write-in operation. The realtime backup method has the advantages of high reliability, low resource consumption, high practicability and simplicity and convenience in operation.
Description
Technical field
The present invention relates to field of data storage, be specifically related to a kind of real time backup method of business critical data.
Background technology
Prior art field of data storage all by timed backup, lacks the method for backing up in realtime for the backup of file.And for the business critical data of high reliability request, may need to relate to each business critical data copy of modification, the backup scenario of prior art cannot realize the backup for business critical data.
Summary of the invention
The technical problem to be solved in the present invention be to provide one can for business critical data according to file write operation set up real-time copy, the real time backup method of the business critical data that reliability is high, low in resources consumption, practicality is good, simple to operation.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A real time backup method for business critical data, implementation step is as follows:
1) set up business critical data listed files;
2) detect in real time each file write operation of file system;
3) file destination of file write operation and business critical data listed files are compared, if coupling, first execute file write operation is then that the file destination of file write operation is set up backup file after file write operation.
Further improvement as technique scheme of the present invention:
The cryptographic hash that described business critical data listed files comprises each business critical data file; The detailed step in described step 3), file destination and business critical data listed files being compared is as follows:
3.1) obtain the file destination of file write operation;
3.2) obtain the cryptographic hash of file destination;
3.3) cryptographic hash of each the business critical data file in the cryptographic hash of file destination and described business critical data listed files is compared, if there is identical cryptographic hash in business critical data listed files, judge that comparative result is as coupling, otherwise judge that comparative result is as not mating.
Described cryptographic hash specifically refers to the md5 file verification code of business critical data file.
In described step 3), the detailed operation steps of execute file write operation is as follows:
3.4) judge the file destination size of file write operation, if file destination size is less than preset value, redirect execution step 3.5), otherwise redirect execution step 3.6);
3.5) execute file write operation, and file destination is read and entered in internal memory;
3.6) execute file write operation.
In described step 3), for the file destination of file write operation, to set up the detailed step of backup file as follows: detect in internal memory whether have file destination, if there is file destination in internal memory, the file destination in internal memory is write in disk and sets up backup file, if there is not file destination file destination in internal memory, directly set up backup file by dma operation.
the present invention has following advantage
The present invention is by detecting in real time each file write operation of file system, the file destination of file write operation and business critical data listed files are compared, if coupling, first execute file write operation, then after file write operation, the file destination for file write operation is set up backup file, can for business critical data according to file write operation set up real-time copy, have advantages of that reliability is high, low in resources consumption, practicality is good, simple to operation.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the basic procedure schematic diagram of the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention are made to more explicit defining.
As shown in Figure 1, the implementation step of the real time backup method of embodiment of the present invention business critical data is as follows:
1) set up business critical data listed files;
2) detect in real time each file write operation of file system;
3) file destination of file write operation and business critical data listed files are compared, if coupling, first execute file write operation is then that the file destination of file write operation is set up backup file after file write operation.
In the present embodiment, the cryptographic hash that business critical data listed files comprises each business critical data file; The detailed step in step 3), file destination and business critical data listed files being compared is as follows:
3.1) obtain the file destination of file write operation;
3.2) obtain the cryptographic hash of file destination;
3.3) cryptographic hash of each the business critical data file in the cryptographic hash of file destination and business critical data listed files is compared, if there is identical cryptographic hash in business critical data listed files, judge that comparative result is as coupling, otherwise judge that comparative result is as not mating.In the present embodiment, adopt the manner of comparison of cryptographic hash relatively directly to adopt the mode of file path comparison, because cryptographic hash is that fixed length and length are shorter, therefore the speed of comparison procedure is faster, and relative efficiency is better, can more save system resource.In the present embodiment, cryptographic hash specifically refers to the md5 file verification code of business critical data file, and the formation efficiency of md5 file verification code is high.
In the present embodiment, in step 3), the detailed operation steps of execute file write operation is as follows:
3.4) judge the file destination size of file write operation, if file destination size is less than preset value, redirect execution step 3.5), otherwise redirect execution step 3.6);
3.5) execute file write operation, and file destination is read and entered in internal memory;
3.6) execute file write operation.
In the present embodiment, in step 3), for the file destination of file write operation, to set up the detailed step of backup file as follows: detect in internal memory whether have file destination, if there is file destination in internal memory, the file destination in internal memory is write in disk and sets up backup file, if there is not file destination file destination in internal memory, directly set up backup file by dma operation.
The foregoing is only the preferred embodiment of the present invention, protection scope of the present invention is not limited in above-mentioned embodiment, and every technical scheme that belongs to the principle of the invention all belongs to protection scope of the present invention.For a person skilled in the art, some improvements and modifications of carrying out under the prerequisite that does not depart from principle of the present invention, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. a real time backup method for business critical data, is characterized in that implementation step is as follows:
1) set up business critical data listed files;
2) detect in real time each file write operation of file system;
3) file destination of file write operation and business critical data listed files are compared, if coupling, first execute file write operation is then that the file destination of file write operation is set up backup file after file write operation.
2. the real time backup method of business critical data according to claim 1, is characterized in that, the cryptographic hash that described business critical data listed files comprises each business critical data file; The detailed step in described step 3), file destination and business critical data listed files being compared is as follows:
3.1) obtain the file destination of file write operation;
3.2) obtain the cryptographic hash of file destination;
3.3) cryptographic hash of each the business critical data file in the cryptographic hash of file destination and described business critical data listed files is compared, if there is identical cryptographic hash in business critical data listed files, judge that comparative result is as coupling, otherwise judge that comparative result is as not mating.
3. the real time backup method of business critical data according to claim 2, is characterized in that: described cryptographic hash specifically refers to the md5 file verification code of business critical data file.
4. the real time backup method of business critical data according to claim 1, is characterized in that, in described step 3), the detailed operation steps of execute file write operation is as follows:
3.4) judge the file destination size of file write operation, if file destination size is less than preset value, redirect execution step 3.5), otherwise redirect execution step 3.6);
3.5) execute file write operation, and file destination is read and entered in internal memory;
3.6) execute file write operation.
5. the real time backup method of business critical data according to claim 4, it is characterized in that, in described step 3), for the file destination of file write operation, to set up the detailed step of backup file as follows: detect in internal memory whether have file destination, if there is file destination in internal memory, the file destination in internal memory is write in disk and sets up backup file, if there is not file destination file destination in internal memory, directly set up backup file by dma operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210432792.0A CN103793294A (en) | 2012-11-03 | 2012-11-03 | Realtime backup method for business-critical data |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210432792.0A CN103793294A (en) | 2012-11-03 | 2012-11-03 | Realtime backup method for business-critical data |
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| CN103793294A true CN103793294A (en) | 2014-05-14 |
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| CN201210432792.0A Pending CN103793294A (en) | 2012-11-03 | 2012-11-03 | Realtime backup method for business-critical data |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105320587A (en) * | 2014-06-24 | 2016-02-10 | 鸿合科技有限公司 | High temperature early warning method and device for processor of large intelligent electronic screen |
| CN105320576A (en) * | 2014-05-30 | 2016-02-10 | 中国电信股份有限公司 | Device and method for database backup |
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2012
- 2012-11-03 CN CN201210432792.0A patent/CN103793294A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105320576A (en) * | 2014-05-30 | 2016-02-10 | 中国电信股份有限公司 | Device and method for database backup |
| CN105320587A (en) * | 2014-06-24 | 2016-02-10 | 鸿合科技有限公司 | High temperature early warning method and device for processor of large intelligent electronic screen |
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Application publication date: 20140514 |