CN107480226A - A kind of real-time data protection system writes log implementation method - Google Patents
A kind of real-time data protection system writes log implementation method Download PDFInfo
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- CN107480226A CN107480226A CN201710653756.XA CN201710653756A CN107480226A CN 107480226 A CN107480226 A CN 107480226A CN 201710653756 A CN201710653756 A CN 201710653756A CN 107480226 A CN107480226 A CN 107480226A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
- G06F11/1446—Point-in-time backing up or restoration of persistent data
- G06F11/1458—Management of the backup or restore process
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/10—File systems; File servers
- G06F16/18—File system types
- G06F16/1805—Append-only file systems, e.g. using logs or journals to store data
- G06F16/1815—Journaling file systems
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/23—Updating
- G06F16/2358—Change logging, detection, and notification
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- Engineering & Computer Science (AREA)
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- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Data Mining & Analysis (AREA)
- Databases & Information Systems (AREA)
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- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
The present invention relates to a kind of real-time data protection system to write log implementation method, the business main frame of this method is equipped with client software, client software during the volume of write-in real-time data protection system every time to carrying out log management, write-in, which is first recorded, when writing data manipulation for the first time starts daily record, daily record is completed in record write-in after the completion of writing data, when carrying out all write-in data manipulations below after the completion of write-in data for the first time, write-in will be first recorded when writing data manipulation and start daily record, daily record is completed in record write-in after the completion of writing data, each write-in can be precisely returned to when needing to recover from data protection system according to write-in daily record.
Description
Technical field
Patent of the present invention is related to computer disaster-tolerant backup field.
Background technology
Disaster tolerant backup system refers in strange land relatively far apart, establishes two sets or more set function identical IT systems, mutually
Between can carry out state of health monitoring and function switch, at one system because unexpected (such as fire, earthquake) be stopped when,
Whole application system can be switched to another place so that the systemic-function can continue normal work.Disaster tolerance technology is system
One part of High availability, disaster tolerance system are more emphasized to handle influence of the external environment to system, particularly calamity
Influence of the difficult sexual behavior part to whole IT nodes, there is provided the other system of node level recovers function.
Real-time data protection system is a kind of on the premise of key data operation is not influenceed, it is possible to achieve it is lasting catch or
Any change that tracking target data is occurred, and the method that random time point before this can be returned to.Real time data is protected
System can provide the backup of block level, file-level and application layer, and recover unlimited any variable recovery point of target.
Real-time data protection system technology is the important breakthrough to the revolution of traditional data redundancy technique.Traditional
Data backup solution is absorbed in the periodic backups to data, therefore always with backup window, data consistency
And the problems such as influence to production system.Now, real time data protection has provided the user new data protection means, system
Backup procedure of the manager without focused data（Because real-time data protection system can constantly monitor the change of critical data, from
And the protection of data is constantly realized automatically）, but only after disaster occurs, simply choose the time point for needing to return to
The fast quick-recovery of data can be achieved.
Real time data protection technique is captured in real time by being implanted into file system filter driver in operating system kernel layer
All Files accesses operation.File for needing real time data protection continuous backup protection, when real time data conservative management mould
When block intercepts its rewriting operation via filter Driver on FSD, then in advance by file data changing unit together with current system when
Between stab（System Time Stamp）Automated back-up is to storage device together.In theory, any file data once becomes
Change can be all automatically recorded, thus referred to as continuous data protection.
Patent of invention content
Patent of the present invention is related to a kind of real-time data protection system and writes log implementation method, and the business main frame of this method is equipped with client
Software is held, client software writes number for the first time to carrying out log management during the volume of write-in real-time data protection system every time
Write-in is first recorded during according to operation and starts daily record, write-in is recorded after the completion of write-in data and completes daily record, for the first time the completion of write-in data
When carrying out all write-in data manipulations below afterwards, all write-in can be first recorded when writing data manipulation and start daily record, write number
Daily record is completed in record write-in after the completion of, can precisely be recovered according to write-in daily record when needing to recover from data protection system
To each write-in.
Brief description of the drawings
Fig. 1 is that a kind of real-time data protection system of patent of the present invention writes log implementation method structural representation.
Embodiment
In order that the object, technical solution and advantage of patent of the present invention are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, patent of the present invention is further elaborated.It should be appreciated that specific embodiment described herein is only explaining
Patent of the present invention, is not intended to limit the present invention patent.
Referring to Fig. 1, a kind of real-time data protection system that Fig. 1 is patent of the present invention writes log implementation method structural representation
Figure.
A kind of real-time data protection system writes log implementation method, it is characterised in that methods described includes write-in daily record
（10）, real-time data protection system（11）, volume（12）, business main frame be connected network with real-time data protection system（13）, in real time
Data protection system client（14）, business main frame（15）, for the first time write-in data（16）, second write-in data（17）,
Data are write three times（18）, this method business main frame（15）Network is connected with real-time data protection system by business main frame（13）
With real-time data protection system（11）It is connected, first time is write into data（16）, second write-in data（17）Write for the third time
Enter data（18）All write-in is a to volume（12）, and write data in first time（16）, second write-in data（17）With the 3rd
Secondary write-in data（18）Write-in start and write completion when all can recording status to write daily record（10）.
A kind of real-time data protection system writes log implementation method, it is characterised in that this method writes data to first time
（16）, second write-in data（17）Data are write with third time（18）All write operations can all record write-in start and write
Enter the write-in journalizing of completion, when business main frame（15）When needing to recover write-in data, real-time data protection system（11）Meeting
According to write-in daily record（10）Recovered, to ensure that recovery can precisely arrive each write operation, and to business main frame（15）See
All it is complete available write-in data come what is recovered.
A kind of real-time data protection system writes log implementation method, it is characterised in that the write-in daily record of this method（10）Only
The status information that write-in starts and write-in is completed is have recorded, writes daily record（10）Record information is simple, the features such as occupying little space.
The preferred embodiment of patent of the present invention is the foregoing is only, is not intended to limit the invention patent, it is all at this
All any modification, equivalent and improvement made within the spirit and principle of patent of invention etc., should be included in patent of the present invention
Protection domain within.
Claims (3)
1. a kind of real-time data protection system writes log implementation method, it is characterised in that methods described includes write-in daily record（10）、
Real-time data protection system（11）, volume（12）, business main frame be connected network with real-time data protection system（13）, real time data protect
Protecting system client（14）, business main frame（15）, for the first time write-in data（16）, second write-in data（17）, for the third time write
Enter data（18）, this method business main frame（15）Network is connected with real-time data protection system by business main frame（13）With it is real-time
Data protection system（11）It is connected, first time is write into data（16）, second write-in data（17）Data are write with third time
（18）All write-in is a to volume（12）, and write data in first time（16）, second write-in data（17）Write with third time
Data（18）Write-in start and write completion when all can recording status to write daily record（10）.
2. a kind of real-time data protection system according to claim 1 writes log implementation method, it is characterised in that this method
Data are write to first time（16）, second write-in data（17）Data are write with third time（18）All write operations all can
The write-in journalizing that record write-in starts and write-in is completed, when business main frame（15）When needing to recover write-in data, count in real time
According to protection system（11）Can be according to write-in daily record（10）Recovered, to ensure that recovery can precisely arrive each write operation, and
To business main frame（15）What is apparently recovered is all complete available write-in data.
3. a kind of real-time data protection system according to claim 1 writes log implementation method, it is characterised in that this method
Write-in daily record（10）The status information that write-in starts and write-in is completed only is have recorded, writes daily record（10）Record information is simple,
The features such as occupying little space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710653756.XA CN107480226A (en) | 2017-08-03 | 2017-08-03 | A kind of real-time data protection system writes log implementation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710653756.XA CN107480226A (en) | 2017-08-03 | 2017-08-03 | A kind of real-time data protection system writes log implementation method |
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| CN107480226A true CN107480226A (en) | 2017-12-15 |
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| CN201710653756.XA Pending CN107480226A (en) | 2017-08-03 | 2017-08-03 | A kind of real-time data protection system writes log implementation method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101187948A (en) * | 2007-12-20 | 2008-05-28 | 中国科学院计算技术研究所 | A continuous data protection system and its realization method |
| CN104050268A (en) * | 2014-06-23 | 2014-09-17 | 西北工业大学 | Continuous data protection and recovery method with log space adjustable online |
| CN104866435A (en) * | 2015-06-06 | 2015-08-26 | 成都云祺科技有限公司 | Continuous data protection method |
| US20160132396A1 (en) * | 2014-01-17 | 2016-05-12 | Netapp, Inc. | Extent metadata update logging and checkpointing |
| CN106850761A (en) * | 2016-12-30 | 2017-06-13 | 江苏天联信息科技发展有限公司 | Journal file storage method and device |
-
2017
- 2017-08-03 CN CN201710653756.XA patent/CN107480226A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101187948A (en) * | 2007-12-20 | 2008-05-28 | 中国科学院计算技术研究所 | A continuous data protection system and its realization method |
| US20160132396A1 (en) * | 2014-01-17 | 2016-05-12 | Netapp, Inc. | Extent metadata update logging and checkpointing |
| CN104050268A (en) * | 2014-06-23 | 2014-09-17 | 西北工业大学 | Continuous data protection and recovery method with log space adjustable online |
| CN104866435A (en) * | 2015-06-06 | 2015-08-26 | 成都云祺科技有限公司 | Continuous data protection method |
| CN106850761A (en) * | 2016-12-30 | 2017-06-13 | 江苏天联信息科技发展有限公司 | Journal file storage method and device |
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Application publication date: 20171215 |