CN102684917B - A kind of data back up method, Apparatus and system - Google Patents
A kind of data back up method, Apparatus and system Download PDFInfo
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- CN102684917B CN102684917B CN201210126764.6A CN201210126764A CN102684917B CN 102684917 B CN102684917 B CN 102684917B CN 201210126764 A CN201210126764 A CN 201210126764A CN 102684917 B CN102684917 B CN 102684917B
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Abstract
The embodiment provides a kind of data back up method, Apparatus and system, relate to the communications field, system capacity can be saved, improve systematic function.Described method includes: primary node is arranged at the first running status, secondary node is arranged at the second running status, and periodically described secondary node is arranged at the 3rd running status, so that the synchrodata of primary node is backed up under described 3rd running status by described secondary node；Wherein the degree of power conservation of the second running status is more than the degree of power conservation of described first running status, and the degree of power conservation of described 3rd running status is less than or equal to the degree of power conservation of described second running status.Embodiments of the invention are applied to the data backup in communication system.
Description
Technical field
The present invention relates to the communications field, particularly relate to a kind of data back up method, Apparatus and system.
Background technology
In a general communications system, in order to ensure reliability and the system of data when the system failure
Uninterrupted operation, it will usually use redundancy technique system core node is backed up.Existing
Redundancy technique in our normally used backup method backup node run with primary node
Configuring identical, backup node periodically or is triggered by event and backs up described synchrodata.At primary joint
Point is when breaking down, and the synchrodata that the application of described secondary node has been backed up takes over primary node
The system that continues as provides service.
But, prior art uses identical operation configuration to make active and standby joint due to main-standby nodes
Point is in identical power consumption state, and the secondary node being generally in idle condition does not do any industry
Business, is but constantly in described identical power consumption state, has so resulted in the waste of system capacity.
Summary of the invention
Embodiments of the invention provide a kind of data back up method, Apparatus and system, can save
System capacity, improves systematic function.
For reaching above-mentioned purpose, embodiments of the invention adopt the following technical scheme that
On the one hand, the embodiment of the present invention provides a kind of data back up method, and the method includes:
Primary node is arranged at the first running status, and secondary node is arranged at the second operation shape
State, the degree of power conservation of described second running status is more than the energy-conservation journey of described first running status
Degree；
After described secondary node being arranged at the 3rd running status with preset time period for the cycle, to
Described primary node sends instruction, indicates described primary node that described synchrodata is sent to institute
State secondary node, so that described secondary node receives described under described 3rd running status
Synchrodata also carries out storage backup to described synchrodata；Described 3rd running status energy-conservation
Degree is less than or equal to the degree of power conservation of described second running status.
On the other hand, the embodiment of the present invention provides a kind of data backup device, and this device includes:
Initial setting up unit, for being arranged at the first running status, secondary node by primary node
Being arranged at the second running status, the degree of power conservation of described second running status is more than described first fortune
The degree of power conservation of row state；
Backup setting unit, for being arranged at described secondary node with preset time period for the cycle
After 3rd running status, send indicator to described primary node, indicate described primary node
Described synchrodata is sent to described secondary node, so that described secondary node is described
Receive described synchrodata under 3rd running status and described synchrodata is carried out storage backup；
The degree of power conservation of described 3rd running status is less than or equal to the energy-conservation journey of described second running status
Degree.
Another further aspect, the embodiment of the present invention provides a kind of data backup system, and this system includes main
With node, secondary node and data backup device,
Described data backup device, for primary node is arranged at the first running status, standby
Node is arranged at the second running status；Described secondary node is arranged with preset time period for the cycle
After the 3rd running status, send instruction to described primary node, indicate described primary node to incite somebody to action
Described synchrodata is sent to described secondary node, so that described secondary node is the described 3rd
Receive described synchrodata under running status and described synchrodata is carried out storage backup；Described
The degree of power conservation of the second running status is more than the degree of power conservation of described first running status；Described
The degree of power conservation of three running statuses is less than or equal to the degree of power conservation of described second running status；
Described primary node, being used for after the described instruction receiving described data backup device will
Described synchrodata is sent to described secondary node；
Described secondary node, sends out for receiving described primary node under described 3rd running status
The described synchrodata sent, and described synchrodata is carried out storage backup.
Visible, a kind of data back up method of embodiment of the present invention offer, Apparatus and system are logical
Cross and primary node is arranged at the first running status, secondary node is arranged at the second operation shape
State, and periodically described secondary node is arranged at the 3rd running status, so that described standby
The synchrodata of primary node is backed up under described 3rd running status with node；Wherein
The degree of power conservation of the second running status, more than the degree of power conservation of described first running status, so makes
The secondary node of idle condition is at the running status that energy consumption is relatively low, thus reaches to save system
System energy, improves the effect of systematic function.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below by right
In embodiment or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that,
Accompanying drawing in describing below is only some embodiments of the present invention, for those of ordinary skill in the art
From the point of view of, on the premise of not paying creative work, it is also possible to obtain the attached of other according to these accompanying drawings
Figure.
A kind of data back up method schematic flow sheet that Fig. 1 provides for the embodiment of the present invention；
The another kind of data back up method schematic flow sheet that Fig. 2 provides for the embodiment of the present invention；
The logical construction signal of a kind of data backup device that Fig. 3 provides for the embodiment of the present invention
Figure；
Fig. 4 shows for the logical construction of the another kind of data backup device that the embodiment of the present invention provides
It is intended to；
The schematic diagram of a kind of data backup system that Fig. 5 provides for the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is entered
Row clearly and completely describes, it is clear that described embodiment is only a part of embodiment of the present invention,
Rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not having
Have and make the every other embodiment obtained under creative work premise, broadly fall into present invention protection
Scope.
Embodiments providing a kind of data back up method, the method can apply to one
Data backup device, this device both can be arranged in primary node and/or secondary node, also
The self-contained unit of primary node and secondary node can be independently of.
Embodiment 1: as it is shown in figure 1, said method comprising the steps of:
101, primary node being arranged at the first running status, secondary node is arranged at the second fortune
Row state.
In order to ensure reliability and the uninterrupted operation of system of data when the system failure, generally
Key node in system is provided with a primary node and a secondary node.Wherein, standby
Node is for backing up the synchrodata of primary node, thus takes over primary when system malfunctions
Node safeguards system properly functioning.
In the embodiment of the present invention, when system initial launch, the data backup device in system will
Primary node is arranged at the first running status, and safeguards system can be properly functioning；By secondary node
Being arranged at the second running status, the degree of power conservation of described second running status is more than described first fortune
The degree of power conservation of row state.Specifically can be by by the processor of secondary node, internal memory, disk
(array) and Ethernet, PCIE (Peripheral Component Interconnect
Express, peripheral component interconnection) etc. port or equipment be set to dormancy or shutoff, from
And realize being arranged at secondary node low energy consumption running status.
In the present embodiment, we can assume that at primary node and secondary node is energy-conservation
State has four ranks: one-level power save mode, two grades of power save modes, three grades of power save modes and four
Level power save mode.The degree of power conservation of described four power save modes strengthens successively, i.e. the energy-conservation shape of one-level
State degree of power conservation is minimum, and level Four power save mode degree of power conservation is the highest.When system is properly functioning,
The first running status that described primary node is arranged at can be one-level power save mode, it is ensured that
System can be properly functioning；The second running status that described secondary node is arranged at, described
Two running statuses are any level power save mode higher than described one-level power save mode degree of power conservation, as
Can be two grades of power save modes, three grades of power save modes or level Four power save mode.So with existing skill
The identical energy comparing the system of having saved of power save mode of the standby usage node of art, improves system
Performance.
102, for the cycle, described secondary node is arranged at the 3rd running status with preset time period
After, send instruction to described primary node, indicate described primary node described synchrodata to be sent out
Give described secondary node, so that described secondary node connects under described 3rd running status
Receive described synchrodata and described synchrodata is carried out storage backup.
In embodiments of the present invention, data backup device can be with described preset time period as week
Phase, timing wake-up backup node, runs the running status of described secondary node from described second
State is set to the 3rd running status, due to the secondary node the to be ensured same step number to primary node
According to backing up, thus the port in described secondary node, described synchrodata backed up and
Equipment needs to be in running status, therefore the degree of power conservation of described 3rd running status typically will not be big
Degree of power conservation in described second running status.Described secondary node is being set by data backup device
After being placed in the 3rd running status, can send instruction to described primary node, described instruction will instruction
Described synchrodata is sent to described secondary node by described primary node, and described secondary node will
Under described 3rd running status, receive described synchrodata and described synchrodata is deposited
Deposit part.
In the present embodiment, if described two grades of power save modes can ensure that secondary node can be right
The synchrodata of primary node backs up, then, when periodically backing up data, be
System wakes up the 3rd running status of secondary node entrance up and is two grades of power save modes.If secondary node
The second running status being in is two grades of power save modes, then the second running status and described 3rd fortune
Row state is identical running status；If the second running status that secondary node is in is three grades of joints
Can state or level Four power save mode, then carry out standby waking up secondary node incision the 3rd running status up
Need during part three grades of power save modes or level Four power save mode switch to two grades of power save modes ensure
Accurately synchrodata is backed up.
In sum, a kind of data back up method is embodiments provided, by by primary
Node is arranged at the first running status, and secondary node is arranged at the second running status, and cycle
Property described secondary node is arranged at the 3rd running status, so that described secondary node is in institute
State under the 3rd running status the synchrodata to primary node to back up；Wherein second run shape
The degree of power conservation of state, more than the degree of power conservation of described first running status, so makes idle condition
Secondary node is in the running status that energy consumption is relatively low, thus reaches to save system capacity, improves system
The effect of system performance, meanwhile, described secondary node is in the 3rd operation when carrying out data backup
State, enables data backup to normally complete, it is ensured that the reliability of Backup Data.
Embodiment 2: as in figure 2 it is shown, said method comprising the steps of:
201, primary node being arranged at the first running status, secondary node is arranged at the second fortune
Row state.
In order to ensure reliability and the uninterrupted operation of system of data when the system failure, generally
Key node in system is provided with a primary node and a secondary node.Wherein, standby
Node is for backing up the synchrodata of primary node, thus takes over primary when system malfunctions
Node safeguards system properly functioning.
In the embodiment of the present invention, when system initial launch, the data backup device in system will
Primary node is arranged at the first running status, and safeguards system can be properly functioning；By secondary node
Being arranged at the second running status, the degree of power conservation of described second running status is more than described first fortune
The degree of power conservation of row state.Specifically can be by by the processor of secondary node, internal memory, disk
(array) and Ethernet, PCIE (Peripheral Component Interconnect
Express, peripheral component interconnection) etc. port or equipment be set to dormancy or shutoff, from
And realize being arranged at secondary node low energy consumption running status.
In the present embodiment, we can assume that at primary node and secondary node is energy-conservation
State has four ranks: one-level power save mode, two grades of power save modes, three grades of power save modes and four
Level power save mode.The degree of power conservation of described four power save modes strengthens successively, i.e. the energy-conservation shape of one-level
State degree of power conservation is minimum, and level Four power save mode degree of power conservation is the highest.When system is properly functioning,
The first running status that described primary node is arranged at can be one-level power save mode, it is ensured that
System can be properly functioning；The second running status that described secondary node is arranged at, described
Two running statuses are any level power save mode higher than described one-level power save mode degree of power conservation, as
Can be two grades of power save modes, three grades of power save modes or level Four power save mode.So with existing skill
The identical energy comparing the system of having saved of power save mode of the standby usage node of art, improves system
Performance.
202, for the cycle, described secondary node is arranged at the 3rd running status with preset time period
After, send instruction to described primary node, indicate described primary node described synchrodata to be sent out
Give described secondary node, so that described secondary node connects under described 3rd running status
Receive described synchrodata and described synchrodata is carried out storage backup.
In embodiments of the present invention, data backup device can be with described preset time period as week
Phase, timing wake-up backup node, runs the running status of described secondary node from described second
State is set to the 3rd running status, due to the secondary node the to be ensured same step number to primary node
According to backing up, thus the port in described secondary node, described synchrodata backed up and
Equipment needs to be in running status, therefore the degree of power conservation of described 3rd running status typically will not be big
Degree of power conservation in described second running status.Described secondary node is being set by data backup device
After being placed in the 3rd running status, can send instruction to described primary node, described instruction will instruction
Described synchrodata is sent to described secondary node by described primary node, and described secondary node will
Under described 3rd running status, receive described synchrodata and described synchrodata is deposited
Deposit part.
In the present embodiment, if described two grades of power save modes can ensure that secondary node can be right
The synchrodata of primary node backs up, then, when periodically backing up data, be
System wakes up the 3rd running status of secondary node entrance up and is two grades of power save modes.If secondary node
The second running status being in is two grades of power save modes, then the second running status and described 3rd fortune
Row state is identical running status；If the second running status that secondary node is in is three grades of joints
Can state or level Four power save mode, then carry out standby waking up secondary node incision the 3rd running status up
Need during part three grades of power save modes or level Four power save mode switch to two grades of power save modes ensure
Accurately synchrodata is backed up.
Step 202 is periodically being carried out in embodiments of the present invention, optionally, incites somebody to action described
Primary node is arranged at the first running status, after secondary node is arranged at the second running status,
Described method also includes:
203, when detecting that the business datum that described primary node receives exceedes predetermined threshold value, inspection
When measuring described primary node abnormal conditions or receive backed up in synchronization instruction, indicate described primary joint
Described synchrodata is stored in buffer unit by point.
When the situations such as paroxysmal abnormality occurs in primary node, such as when described primary node being detected
The business datum received exceedes predetermined threshold value or described primary node abnormal conditions detected,
Or when receiving backed up in synchronization instruction, owing to situation occurs that secondary node is the most suddenly
Having and be waken up preparatively, therefore first data backup device can indicate described primary node by described
Synchrodata is stored in buffer unit.Described buffer unit can be the storage of primary intra-node
Unit, it is also possible to hang over the external memory unit on primary node outside being, it is also possible to be a tool
Having the independent third party device of storage capacity, this is not limited by the embodiment of the present invention.
204, described secondary node is arranged at the 3rd running status, and indicates described caching single
Unit sends described synchrodata to described secondary node, so that described secondary node is described the
Receive and store the described synchrodata of backup under three running statuses.
Described synchrodata is stored in caching at the described primary node of instruction by data backup device
After unit, or indicating described primary node that described synchrodata is stored in buffer unit
Meanwhile, can trigger and wake up backup node up, by the running status of described secondary node from described second
Running status is set to the 3rd running status, owing to secondary node to be ensured can be to primary node
Synchrodata back up, described synchrodata is backed up by the most described secondary node
Port and equipment need to be in running status, therefore the energy that described 3rd running status consumes should be big
In the energy consumed equal to described second running status, the energy-conservation journey of the most described 3rd running status
Degree is less than or equal to the degree of power conservation of described second running status.
It should be noted that step 202 and step 203 in embodiment 2,204 be different bars
The two kinds of processing modes triggered under part: step 202 is in order to ensure the data consistent of main-standby nodes
Property, periodically the data of primary node are carried out standby in the case of primary node is properly functioning
Part；And step 203,204 be the processing mode that paroxysmal abnormality occurs for primary node.
The two can implement simultaneously in embodiments of the present invention, it is also possible to individually implements, above-described embodiment
It is preferred embodiment, and the meaning of indefinite.
Further, the data back up method that the embodiment of the present invention 1 or embodiment 2 provide also may be used
To include:
After receiving the instruction of standby usage node switches, described secondary node is arranged at the first fortune
Row state, so that described primary node completes to switch with described secondary node；
Specifically, detecting that the situations such as abnormal occurs in primary node, or system is assigning standby usage
During node switches instruction, described data backup device can allow standby usage node switch.Institute
State data backup device receive standby usage node switches instruction after, described secondary node is set
It is placed in the first running status；The running status phase of the most described primary node and described secondary node
With, it is all the first running status, it is ensured that described primary node is the completeest with described secondary node
One-tenth is switched.
After described primary node and described secondary node complete to switch, the standby joint after switching
Point is arranged at described second running status, and the primary node after switching is arranged at described first and runs
State.
Specifically, after described primary node and described secondary node complete to switch, described data
Secondary node after switching can be arranged at described second running status, after switching by back-up device
Primary node is arranged at described first running status.Described second running status is more primary joint than now
The degree of power conservation of the first running status of point is high, thus has reached to save the purpose of system capacity.
In sum, a kind of data back up method is embodiments provided, by by primary
Node is arranged at the first running status, and secondary node is arranged at the second running status, and cycle
Property described secondary node is arranged at the 3rd running status, so that described secondary node is in institute
State under the 3rd running status the synchrodata to primary node to back up；Wherein second run shape
The degree of power conservation of state, more than the degree of power conservation of described first running status, so makes idle condition
Secondary node is in the running status that energy consumption is relatively low, thus reaches to save system capacity, improves system
The effect of system performance, meanwhile, described secondary node is in the 3rd operation when carrying out data backup
State, enables data backup to normally complete, it is ensured that the reliability of Backup Data；Further
, it is contemplated that described secondary node, except periodically triggering, also can be triggered backup by event described same
Step data, can be the most standby by the data that need to synchronize under receiving the situation that primary node is abnormal
Part, to buffer unit, then transmits synchronization data to the secondary node waken up up by buffer unit,
Save avoid to a certain extent on the premise of energy consumption data in emergency situations under loss；Enter
One step, by arranging the energy-conservation of the secondary node after switching after completing the switching of main-standby nodes
State achieves the energy-saving effect of system and maintains.
As it is shown on figure 3, the embodiment of the present invention additionally provides a kind of data backup device 300.Number
Above-mentioned data back up method, described data backup device have been used for it according to back-up device 300
300 may include that initial setting up unit 301, backup setting unit 302.
Initial setting up unit 301, is arranged at the first running status, secondary node by primary node
It is arranged at the second running status.
In order to ensure reliability and the uninterrupted operation of system of data when the system failure, generally
Key node in system is provided with a primary node and a secondary node.Wherein, standby
Node is for backing up the synchrodata of primary node, thus takes over primary when system malfunctions
Node safeguards system properly functioning.
In the embodiment of the present invention, when system initial launch, the data backup device in system will
Primary node is arranged at the first running status, and safeguards system can be properly functioning；By secondary node
Being arranged at the second running status, the degree of power conservation of described second running status is more than described first fortune
The degree of power conservation of row state.Specifically can be by by the processor of secondary node, internal memory, disk
(array) and Ethernet, PCIE (Peripheral Component Interconnect
Express, peripheral component interconnection) etc. port or equipment be set to dormancy or shutoff, from
And realize being arranged at secondary node low energy consumption running status.
In the present embodiment, we can assume that at primary node and secondary node is energy-conservation
State has four ranks: one-level power save mode, two grades of power save modes, three grades of power save modes and four
Level power save mode.The degree of power conservation of described four power save modes strengthens successively, i.e. the energy-conservation shape of one-level
State degree of power conservation is minimum, and level Four power save mode degree of power conservation is the highest.When system is properly functioning,
The first running status that described primary node is arranged at can be one-level power save mode, it is ensured that
System can be properly functioning；The second running status that described secondary node is arranged at, described
Two running statuses are any level power save mode higher than described one-level power save mode degree of power conservation, as
Can be two grades of power save modes, three grades of power save modes or level Four power save mode.So with existing skill
The identical energy comparing the system of having saved of power save mode of the standby usage node of art, improves system
Performance.
Backup setting unit 302, for setting described secondary node with preset time period for the cycle
After being placed in the 3rd running status, send instruction to described primary node, indicate described primary node
Described synchrodata is sent to described secondary node, so that described secondary node is described
Receive described synchrodata under 3rd running status and described synchrodata is carried out storage backup.
In embodiments of the present invention, the backup setting unit 302 of data backup device can be with described
Preset time period is the cycle, timing wake-up backup node, by the running status of described secondary node
It is set to the 3rd running status, owing to secondary node to be ensured is to master from described second running status
Back up by the synchrodata of node, so described synchrodata is entered by described secondary node
Port and the equipment of row backup need to be in running status, therefore described 3rd running status is energy-conservation
Degree is less than the degree of power conservation equal to described second running status.Described backup setting unit
302 after being arranged at the 3rd running status by described secondary node, can send out to described primary node
Sending instruction, described synchrodata is sent to described standby by described instruction by described for instruction primary node
With node, described secondary node will receive described synchrodata also under described 3rd running status
Described synchrodata is carried out storage backup.
In the present embodiment, if described two grades of power save modes can ensure that secondary node can be right
The synchrodata of primary node backs up, then, when periodically backing up data, be
System wakes up the 3rd running status of secondary node entrance up and is two grades of power save modes.If secondary node
The second running status being in is two grades of power save modes, then the second running status and described 3rd fortune
Row state is identical running status；If the second running status that secondary node is in is three grades of joints
Can state or level Four power save mode, then carry out standby waking up secondary node incision the 3rd running status up
Need during part three grades of power save modes or level Four power save mode switch to two grades of power save modes ensure
Accurately synchrodata is backed up.
Further, described backup setting unit 302 is additionally operable to when described primary node being detected
The business datum received exceedes predetermined threshold value, described primary node abnormal conditions detected or receive
During backed up in synchronization instruction, the synchrodata of described primary node is stored in buffer unit；By institute
State secondary node and be arranged at the 3rd running status, and indicate described buffer unit to described standby joint
Point sends described synchrodata, so that described secondary node connects under described 3rd running status
Receive and store the described synchrodata of backup.
When the situations such as paroxysmal abnormality occurs in primary node, such as when described primary node being detected
The business datum received exceedes predetermined threshold value or described primary node abnormal conditions detected,
Or when receiving backed up in synchronization instruction, owing to situation occurs that secondary node is the most suddenly
Having and be waken up preparatively, therefore first data backup device can indicate described primary node by described
Synchrodata is stored in buffer unit.Described buffer unit can be the storage of primary intra-node
Unit, it is also possible to hang over the external memory unit on primary node outside being, it is also possible to be a tool
Having the independent third party device of storage capacity, this is not limited by the embodiment of the present invention.
Described synchrodata is stored in by backup setting unit 302 at the described primary node of instruction
After buffer unit or single indicating described primary node that described synchrodata is stored in caching
While unit, can trigger and wake up backup node up, by the running status of described secondary node from described
Second running status is set to the 3rd running status, owing to secondary node to be ensured can be to primary
The synchrodata of node backs up, and carries out standby to described synchrodata in the most described secondary node
Part port and equipment need to be in running status, therefore the energy that described 3rd running status consumes
Should be greater than the energy consumed equal to described second running status, the joint of the most described 3rd running status
Energy degree is less than or equal to the degree of power conservation of described second running status.
As shown in Figure 4, further, data backup device 300 arranges list before also including switching
Unit 303, arranges unit 304 after switching.
Unit 303 is set before switching, is used for after receiving the instruction of standby usage node switches, will
Described secondary node is arranged at the first running status；So that described primary node is standby with described
Node completes to switch.
Specifically, detecting that the situations such as abnormal occurs in primary node, or system is assigning standby usage
During node switches instruction, described data backup device can allow standby usage node switch.Institute
State data backup device receive standby usage node switches instruction after, described secondary node is set
It is placed in the first running status；The running status phase of the most described primary node and described secondary node
With, it is all the first running status, it is ensured that described primary node is the completeest with described secondary node
One-tenth is switched.
Unit 304 is set after switching, for completing with described secondary node at described primary node
After switching, the secondary node after switching is arranged at described second running status, after switching
Primary node is arranged at described first running status.
Specifically, after described primary node and described secondary node complete to switch, described data
Secondary node after switching can be arranged at described second running status, after switching by back-up device
Primary node is arranged at described first running status.Described second running status is more primary joint than now
The degree of power conservation of the first running status of point is high, thus has reached to save the purpose of system capacity.
It should be noted that the data backup device that the embodiment of the present invention provides can be used to realize
The data back up method that the embodiment of the present invention provides, the Module Division of this data backup device is simply
For example, those of ordinary skill in the art can be standby according to the data of embodiment of the present invention offer
Part method modified module dividing mode, and then the method realizing the present invention, this retouching or improvement
All should be within protection scope of the present invention.
As it is shown in figure 5, the embodiment of the present invention additionally provides a kind of data backup system, described system
System includes: primary node 51, secondary node 52 and data backup device 53.Data backup fills
Put 53 can be any embodiment of the present invention provide data backup device or its etc. homotype
Enclose interior deformation device.
Data backup device 53, for primary node 51 is arranged at the first running status, standby
It is arranged at the second running status with node 52；With preset time period for the cycle by described standby joint
After point 52 is arranged at the 3rd running status, sends instruction to primary node 51, indicate primary joint
Described synchrodata is sent to secondary node 52, so that secondary node 52 is in institute by point 51
State and receive described synchrodata under the 3rd running status and described synchrodata is stored standby
Part；Wherein, the degree of power conservation of described second running status is more than the joint of described first running status
Can degree；The degree of power conservation of described 3rd running status is less than or equal to described second running status
Degree of power conservation.
Primary node 51, is used for institute after the described instruction receiving data backup device 53
State synchrodata and be sent to secondary node 52.
Secondary node 52, sends for receiving primary node 51 under described 3rd running status
Described synchrodata, and described synchrodata is carried out storage backup.
Further, data backup device 53, it is additionally operable to when detecting that primary node 51 receives
Business datum exceed predetermined threshold value, described primary node abnormal conditions detected or receive synchronization
During backup instruction, the synchrodata of described primary node is stored in buffer unit (the most in the drawings
Illustrate)；Secondary node 52 is arranged at the 3rd running status, and indicates described buffer unit
Described synchrodata is sent, so that secondary node 52 is transported the described 3rd to secondary node 52
Receive and store the described synchrodata of backup under row state.
It should be noted that described buffer unit can be the memory cell of primary intra-node,
Can also be, with primary node, there is the external memory unit of communication connection, it is also possible to be a tool
Having the independent third party device of storage capacity, this is not limited by the embodiment of the present invention.
Further, data backup device 53, it is additionally operable to receiving standby usage node switches
After instruction, described secondary node 52 is arranged at the first running status, so that described primary
Node 51 completes to switch with described secondary node 52；Standby with described at described primary node 51
After completing to switch with node 52, the secondary node after switching is arranged at described second and runs shape
State, the primary node after switching is arranged at described first running status.
It should be noted that be only a kind of data backup that the embodiment of the present invention provides shown in Fig. 5
The structured flowchart example of system, in figure, data backup device 53 is independent of primary node 51 and standby
With node 52, it should be understood by one skilled in the art that data backup in practical implementations
Device 53 can also be integrated in described primary node 51 and/or the inside of secondary node 52.Separately
Outward, for clarity, Fig. 5 merely illustrates a primary node and a secondary node,
It will be appreciated by those skilled in the art that primary node and secondary node can be in actual deployment
One to one, one-to-many or many-to-one relation, come according to the concrete condition such as performance of main-standby nodes
Both dispose can, this is not limited by the embodiment of the present invention.
In sum, embodiments provide a kind of data back up method, Apparatus and system,
By primary node is arranged at the first running status, secondary node is arranged at the second operation shape
State, and periodically described secondary node is arranged at the 3rd running status, so that described standby
The synchrodata of primary node is backed up under described 3rd running status with node；Wherein
The degree of power conservation of the second running status, more than the degree of power conservation of described first running status, so makes
The secondary node of idle condition is in the running status that energy consumption is relatively low, thus reaches saving system energy
Amount, improve systematic function effect, meanwhile, described secondary node when carrying out data backup at
In the 3rd running status, data backup is enable to normally complete, it is ensured that Backup Data reliable
Property；Further, the data that can will need to synchronize under receiving the situation that primary node is abnormal
Backup to buffer unit in time, then by buffer unit transmit synchronization data to wake up up standby
Node, save avoid to a certain extent on the premise of energy consumption data in emergency situations under lose
Lose；Further, by arranging the secondary node after switching after completing the switching of main-standby nodes
Power save mode achieve system energy-saving effect maintain.
One of ordinary skill in the art will appreciate that: realize all or part of step of said method embodiment
Suddenly can be completed by the hardware that programmed instruction is relevant, aforesaid program can be stored in a computer
In read/write memory medium, this program upon execution, performs to include the step of said method embodiment；
And aforesaid storage medium includes: ROM, RAM, magnetic disc or CD etc. are various can store journey
The medium of sequence code.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is also
Being not limited to this, any those familiar with the art is at the technology model that the invention discloses
In enclosing, the change that can readily occur in or replacement, all should contain within protection scope of the present invention.
Therefore, protection scope of the present invention should be as the criterion with described scope of the claims.
Claims (6)
1. a data back up method, it is characterised in that including:
Primary node is arranged at the first running status, and secondary node is arranged at the second operation shape
State, the degree of power conservation of described second running status is more than the energy-conservation journey of described first running status
Degree；
After described secondary node being arranged at the 3rd running status with preset time period for the cycle, to
Described primary node sends instruction, indicates described primary node synchrodata to be sent to described standby
With node, so that described secondary node receives described synchronization under described 3rd running status
Data also carry out storage backup to described synchrodata；The degree of power conservation of described 3rd running status
Degree of power conservation less than or equal to described second running status；
When detecting that the business datum that described primary node receives exceedes predetermined threshold value, institute detected
When stating primary node abnormal conditions or receive backed up in synchronization instruction, by the synchronization of described primary node
Data are stored in buffer unit；
Described secondary node is arranged at the 3rd running status, and indicates described buffer unit to institute
State secondary node and send described synchrodata, so that described secondary node runs the described 3rd
Receive and store the described synchrodata of backup under state.
Method the most according to claim 1, it is characterised in that described method also includes:
After receiving the instruction of standby usage node switches, described secondary node is arranged at the first fortune
Row state, so that described primary node completes to switch with described secondary node；
After described primary node and described secondary node complete to switch, the standby joint after switching
Point is arranged at described second running status, and the primary node after switching is arranged at described first and runs
State.
3. a data backup device, it is characterised in that including:
Initial setting up unit, for being arranged at the first running status, secondary node by primary node
Being arranged at the second running status, the degree of power conservation of described second running status is more than described first fortune
The degree of power conservation of row state；
Backup setting unit, for being arranged at described secondary node with preset time period for the cycle
After 3rd running status, send indicator to described primary node, indicate described primary node
Synchrodata is sent to described secondary node, so that described secondary node is the described 3rd
Receive described synchrodata under running status and described synchrodata is carried out storage backup；Described
The degree of power conservation of the 3rd running status is less than or equal to the degree of power conservation of described second running status；
Described backup setting unit is additionally operable to when the business number that described primary node receives being detected
According to exceeding predetermined threshold value, described primary node abnormal conditions being detected or receive backed up in synchronization instruction
Time, the synchrodata of described primary node is stored in buffer unit；Described secondary node is set
It is placed in the 3rd running status, and it is described same to indicate described buffer unit to send to described secondary node
Step data, so that described secondary node receives under described 3rd running status and stores backup
Described synchrodata.
Data backup device the most according to claim 3, it is characterised in that described number
Also include according to back-up device:
Unit is set before switching, for after receiving the instruction of standby usage node switches, by described
Secondary node is arranged at the first running status, so that described primary node and described secondary node
Complete to switch；
Unit is set after switching, for completing to switch with described secondary node at described primary node
After, the secondary node after switching is arranged at described second running status, primary after switching
Node is arranged at described first running status.
5. a data backup system, it is characterised in that described system includes: primary node,
Secondary node and data backup device,
Described data backup device, for primary node is arranged at the first running status, standby
Node is arranged at the second running status；Described secondary node is arranged with preset time period for the cycle
After the 3rd running status, send instruction to described primary node, indicate described primary node to incite somebody to action
Synchrodata is sent to described secondary node, so that described secondary node runs the described 3rd
Receive described synchrodata under state and described synchrodata is carried out storage backup；Described second
The degree of power conservation of running status is more than the degree of power conservation of described first running status；Described 3rd fortune
The degree of power conservation of row state is less than or equal to the degree of power conservation of described second running status；
Described primary node, being used for after the described instruction receiving described data backup device will
Described synchrodata is sent to described secondary node；
Described secondary node, sends out for receiving described primary node under described 3rd running status
The described synchrodata sent, and described synchrodata is carried out storage backup；
Described data backup device, is additionally operable to when the business number that described primary node receives being detected
According to exceeding predetermined threshold value, described primary node abnormal conditions being detected or receive backed up in synchronization instruction
Time, the synchrodata of described primary node is stored in buffer unit；Described secondary node is set
It is placed in the 3rd running status, and it is described same to indicate described buffer unit to send to described secondary node
Step data, so that described secondary node receives under described 3rd running status and stores backup
Described synchrodata.
System the most according to claim 5, it is characterised in that described data backup fills
Put, be additionally operable to, after receiving the instruction of standby usage node switches, be arranged at by described secondary node
First running status, so that described primary node completes to switch with described secondary node；Institute
Stating after primary node and described secondary node complete to switch, the secondary node after switching is arranged at
Described second running status, the primary node after switching is arranged at described first running status.
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| CN201262702Y (en) * | 2007-10-31 | 2009-06-24 | 西南科技大学 | Wireless sensor network node based on Bluetooth |
| CN102306157A (en) * | 2011-07-12 | 2012-01-04 | 中国人民解放军国防科学技术大学 | Energy-saving-oriented high-reliability data storage method in data center environment |
| CN102325160A (en) * | 2011-07-18 | 2012-01-18 | 南京航空航天大学 | Universal sensing node of self-organizing network of Internet of things |
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| CN102158888B (en) * | 2011-05-18 | 2013-12-25 | 西安电子科技大学 | Data forwarding method based on random walk backup and node cooperation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201262702Y (en) * | 2007-10-31 | 2009-06-24 | 西南科技大学 | Wireless sensor network node based on Bluetooth |
| CN102306157A (en) * | 2011-07-12 | 2012-01-04 | 中国人民解放军国防科学技术大学 | Energy-saving-oriented high-reliability data storage method in data center environment |
| CN102325160A (en) * | 2011-07-18 | 2012-01-18 | 南京航空航天大学 | Universal sensing node of self-organizing network of Internet of things |
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