CN107168830A - A kind of disaster tolerance system based on virtual platform, method - Google Patents
A kind of disaster tolerance system based on virtual platform, method Download PDFInfo
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- CN107168830A CN107168830A CN201710354793.0A CN201710354793A CN107168830A CN 107168830 A CN107168830 A CN 107168830A CN 201710354793 A CN201710354793 A CN 201710354793A CN 107168830 A CN107168830 A CN 107168830A
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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
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
- G06F11/2053—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where persistent mass storage functionality or persistent mass storage control functionality is redundant
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Abstract
The invention discloses a kind of disaster tolerance system based on virtual platform, the system includes multiple websites, and each website includes cluster virtual machine, Storage Virtualization gateway and storage device；The cluster virtual machine includes multiple virtual machines, multiple Storage Virtualization gateways are connected with each other to constitute Storage Virtualization gateway cluster, described in the first website during device fails, the Storage Virtualization gateway cluster will connect the circuit switching of first website to the circuit for connecting the second website；Data syn-chronization is carried out between multiple storage devices；Disaster tolerance system disclosed in this invention, when an error occurs can be timely by the circuit switching of connecting fault website to the circuit for connecting other websites, to ensure the continuity of business event, so as to avoid the loss that failure is brought to enterprise；The invention also discloses a kind of disaster recovery method based on above-mentioned disaster tolerance system, equally with above-mentioned beneficial effect.
Description
Technical field
The present invention relates to network communication technology field, more particularly to a kind of disaster tolerance system and side based on virtual platform
Method.
Background technology
Currently, with the development and the continuous expansion of scope of the enterprise of the network communications technology, the business of enterprise is for network
Dependence it is increasing.But it is due to the generation of various natural and man-made calamities, the business of enterprise can be interrupted, this will give enterprise's band
Carry out huge property loss.So modern enterprise needs a set of perfect disaster tolerance system to ensure being normally carried out for business event.
In today's society, with the popularization of virtualization technology, increasing enterprise by business be placed on virtual platform it
In, at this moment enterprise is accomplished by carrying out disaster tolerance construction to cluster virtual machine, to ensure the normal operation of business event.
In the prior art, enterprise is combined to build business system typically by virtual platform with a storage network
System, refer to Fig. 1, and many virtual machines 100 are interconnected to constitute cluster virtual machine, the cluster virtual machine by gateway 200 with
Storage device 300 is connected.When a certain virtual machine breaks down, gateway can arrive the circuit switching of connecting fault virtual machine
The circuit of another virtual machine is connected, to ensure the operation of business.
But in the prior art, when storage device breaks down, whole system will be affected, whole enterprise
Business will be interrupted, and this can cause serious property loss to enterprise.
The content of the invention
In view of this, it is a primary object of the present invention to provide a kind of disaster tolerance system based on virtual platform, Ke Yiyou
The Single Point of Faliure avoided in system of effect；Another object of the present invention is to provide a kind of disaster tolerance side based on virtual platform
Method, can go on the business continuity performed by system when failure occurs.
In order to solve the above problems, the invention provides a kind of disaster tolerance system based on virtual platform, the system bag
Multiple websites are included, each described website includes cluster virtual machine, Storage Virtualization gateway and storage device；
The cluster virtual machine is connected with the Storage Virtualization gateway, the Storage Virtualization gateway and the storage
Equipment is connected, and the cluster virtual machine includes multiple virtual machines, and multiple Storage Virtualization gateways are connected with each other to constitute
Storage Virtualization gateway cluster, when the device fails in the first website, the Storage Virtualization gateway cluster will be connected
The circuit switching of first website extremely connects the circuit of the second website；
Data syn-chronization is kept between multiple storage devices.
Alternatively, the Storage Virtualization gateway cluster specifically for：
When the first virtual machine breaks down, the circuit switching for connecting first virtual machine is extremely connected into the second virtual machine
Circuit.
Alternatively, the Storage Virtualization gateway cluster specifically for：
When the first storage device breaks down, the circuit switching for connecting first storage device is deposited to connecting second
Store up the circuit of equipment.
Alternatively, the Storage Virtualization gateway cluster specifically for：
When the first Storage Virtualization gateway failure, the circuit switching of the first Storage Virtualization gateway will be connected
To the circuit for connecting the second Storage Virtualization gateway.
Alternatively, the Storage Virtualization gateway is additionally operable to：
It is when the fault restoration of first website is completed, the circuit switching for connecting second website is described to connecting
The circuit of first website.
Alternatively, arbitration node is provided between multiple Storage Virtualization gateways, the hair for preventing fissure situation
It is raw.
Present invention also offers a kind of disaster recovery method based on virtual platform, including：
When the device fails of the first website in multiple websites, the Storage Virtualization gateway cluster obtains described
The information of the device fails of first website；Wherein, the website includes cluster virtual machine, Storage Virtualization gateway and storage
Equipment, the cluster virtual machine includes multiple virtual machines, and multiple Storage Virtualization gateways are connected with each other empty to constitute storage
Data syn-chronization is kept between planization gateway cluster, multiple storage devices；
The Storage Virtualization gateway cluster will connect the circuit switching of first website into the connection website
The circuit of second website.
Alternatively, the Storage Virtualization gateway cluster will connect the circuit switching of first website to the connection station
The circuit of the second website in point includes：
When the first virtual machine breaks down, the Storage Virtualization gateway cluster will connect the line of first virtual machine
Road is switched to the circuit of the second virtual machine of connection.
Alternatively, the Storage Virtualization gateway cluster will connect the circuit switching of first website to the connection station
The circuit of the second website in point includes：
When the first storage device breaks down, the Storage Virtualization gateway cluster will connect first storage device
Circuit switching to connection the second storage device circuit.
Alternatively, the Storage Virtualization gateway cluster will connect the circuit switching of first website to the connection station
The circuit of the second website in point includes：
When the first Storage Virtualization gateway failure, the Storage Virtualization gateway cluster is deposited connecting described first
Circuit of the circuit switching of storage virtualization gateway to the second Storage Virtualization gateway of connection.
, there are multiple websites in system provided by the present invention, each website includes cluster virtual machine, Storage Virtualization net
Close and storage device, the data stored between multiple websites are substantially the same, when an error occurs can be timely by connection event
Hinder the circuit switching of website to the circuit for connecting other websites, to ensure the continuity of business event, so as to avoid failure to enterprise
The loss that industry is brought.Present invention also offers a kind of disaster recovery method, with above-mentioned beneficial effect, it will not be repeated here.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme in the embodiment of the present application, make required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present application, for
For those of ordinary skill in the art, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of disaster tolerance system based on virtual platform in the prior art；
The structural representation for the first disaster tolerance system that Fig. 2 is provided by the embodiment of the present invention；
The structural representation for second of disaster tolerance system that Fig. 3 is provided by the embodiment of the present invention；
The structural representation for the third disaster tolerance system that Fig. 4 is provided by the embodiment of the present invention；
A kind of flow chart for disaster recovery method that Fig. 5 is provided by the embodiment of the present invention；
Fig. 6 is the flow chart of the specific implementation method of step 102 in Fig. 5.
Embodiment
In order that those skilled in the art more fully understand the technical scheme in the application, it is real below in conjunction with the application
The accompanying drawing in example is applied, the technical scheme in the embodiment of the present application is clearly and completely described, it is clear that described implementation
Example only some embodiments of the present application, rather than whole embodiments.Based on the embodiment in the application, this area is common
The every other embodiment that technical staff is obtained under the premise of creative work is not made, should all belong to protection of the present invention
Scope.
The present invention is a kind of disaster tolerance system based on virtual platform, in the prior art, and its system has single-point event
Barrier, i.e., when storing network failure, whole system will be affected, so as to be caused any property loss to enterprise；And this hair
Single Point of Faliure is not present in bright provided system, can be by connecting fault when the device fails of any one in website
The circuit switching of equipment is to the circuit of other identical equipment is connected, so as to ensure that the continuity of business event, it is to avoid failure
The loss brought to enterprise.
The present invention is described in detail below in conjunction with accompanying drawing.
It refer to Fig. 2, the structural representation for the first disaster tolerance system that Fig. 2 is provided by the embodiment of the present invention, the system
Including：
Multiple websites 101, each described website 101 includes cluster virtual machine 102, Storage Virtualization gateway 105 and deposited
Store up equipment 107.
There is provided a kind of disaster tolerance system that point single fault is not present, appearance provided by the present invention in embodiments of the present invention
Calamity system includes multiple websites 101, and each website includes one or more the said equipments, i.e., each website is wrapped
One or more cluster virtual machines 102 are included, one or more Storage Virtualization gateways 105, and one or more storages are set
Standby 107, disaster tolerance system so provided by the present invention just includes multiple cluster virtual machines 102, multiple Storage Virtualization gateways
105 and multiple storage devices 107.
The cluster virtual machine 102 is connected with the Storage Virtualization gateway 105, the Storage Virtualization gateway 105
It is connected with the storage device 107, the cluster virtual machine 102 includes multiple virtual machines 103 and virtual machine 104, Duo Gesuo
State Storage Virtualization gateway 105 to be connected with each other to constitute Storage Virtualization gateway cluster 106, the equipment hair described in the first website
During raw failure, the circuit switching for connecting first website is extremely connected the second website by the Storage Virtualization gateway cluster 106
Circuit.
Connected mode between each above-mentioned equipment can select various ways to be attached, and such as selection is carried out with netting twine
Connection, can also be selected to be attached with optical fiber, naturally it is also possible to which selection selection between some equipment is attached with netting twine,
Selection is attached with optical fiber between some equipment, such as by the disaster tolerance system that the embodiment of the present invention is provided, due to
Storage Virtualization gateway cluster 106 needs to carry out more judgement either switch step, in order to ensure Storage Virtualization gateway
The speed of service of cluster 106, can select to be attached with optical fiber between multiple Storage Virtualization gateways 105, whole to constitute
Individual Storage Virtualization gateway cluster 106.When fibre is used up in selection to be attached, further light can be set in fibre circuit
Fiber amplifier, is transmitted with an optical fiber by one group of optical wavelength of DWDM (intensive multiplexed optical wave with) combinations, is reduced with this
The number of fibers for the disaster tolerance system that the embodiment of the present invention is provided, with cost-effective or constant in the system number of fibers
In the case of improve data transfer when bandwidth.
In embodiments of the present invention, the virtual machine 103 and virtual machine 104 in cluster virtual machine 102 can be grasped by Linux
Make KVM (Kernel-based Virtual Machine) system void that system is integrated in after 2.6.20 versions in Linux
What planization module was produced after being virtualized, it is of course also possible to produce multiple virtual machines 103 and virtual machine by other method
104, to constitute cluster virtual machine 102, are not specifically limited in embodiments of the present invention, but are that selection is used under normal circumstances
Kvm system virtualization modules in (SuSE) Linux OS produce multiple virtual machines, because the KVM systems in (SuSE) Linux OS
System virtualization modules are the system virtualization an increased income modules, and its core source code is seldom, during specifically used very
It is convenient.
In embodiments of the present invention, first website and the second website are not to refer in particular to some specific website, but
For convenience of description, the website broken down is referred to as the first website, and by the circuit switching of connecting fault website to connecting
After the circuit for connecing new website, the new website being switched to is referred to as the second website.Certainly, it is being switched to new station
Point after, may find that the new website also there occurs failure, then now can also by the circuit of connecting fault website after
Continuous to be switched to the circuit for connecting another new website, now the website of failure is still referred to as the first website, is switched to
New website be referred to as the second website.
Certainly, before the second website is switched to, first the second station point that will be switched to can be estimated, if the
Two websites do not break down, then will connect the circuit switching of the first website to the circuit of the second website of connection；If the second website
Failure is there occurs, then continues to be estimated next new website, after finding that does not have a faulty website, then will
The circuit switching of the first website is connected to the circuit for connecting new website.The above-mentioned evaluation work to new site is typically by storing
Virtualization gateway cluster 106 is estimated what is either judged, naturally it is also possible to be that miscellaneous equipment either other modules are carried out
Assess and either judge, do not do specific restriction in embodiments of the present invention.
It is above-mentioned when device fails in the first website, the Storage Virtualization gateway cluster 106 can first obtain described
The information of device fails in first website.Obtaining the mode of fault message has many kinds, for example, working as device fails
When, fault message can be sent, when virtualization gateway cluster 106 receives the fault message sent by faulty equipment, will be connected
The circuit switching of failure website is to the circuit for connecting other websites, to ensure the operation of whole system；Or be due to equipment
The failure ratio of generation is more serious, it is impossible to when sending data to virtualization gateway cluster 106, and virtualization gateway cluster 106 is above-mentioned
Start timing when device data is interrupted, when the time of data outage reaching threshold value set in advance, just by the said equipment
It is judged as having occurred and that failure, the circuit switching for the website for including above-mentioned faulty equipment will be connected to the circuit of connection new site.
For example when the data outage of equipment was for up to 10 seconds, the circuit switching for the website for including above-mentioned faulty equipment will be connected extremely
The circuit of new site is connected, to ensure the normal operation of whole system.Above-mentioned threshold value set in advance can be data once in
Disconnected duration, can also be the number of times that the device data is interrupted within a period of time, such as when the data of equipment were at 60 seconds
When inside having interrupted 5 times, equally the said equipment is judged as to have occurred and that failure, connection is included to the website of above-mentioned faulty equipment
Circuit switching extremely connects the circuit of new site.In a practical situation, the situation of other failures, specific determination methods can also be met
Above-mentioned three kinds are also not limited to, but which kind of no matter judges the method for equipment fault using, the reality of the present invention is not influenceed
It is existing.
Under normal conditions, usually above-mentioned three kinds of methods are used in combination, i.e., when Storage Virtualization gateway cluster 106 is received
The information sent to faulty equipment, or when the time of data outage reaching threshold value set in advance, or work as data
When the number of times of interruption reaches threshold value set in advance within a period of time, occur any one of above-mentioned three kinds of situations, all will even
The circuit switching of the website including faulty equipment is connect to the circuit for connecting new site, to ensure the normal operation of whole system.When
One kind in above-mentioned three kinds of methods can also be so selected, is not specifically limited in embodiments of the present invention.
Data syn-chronization is carried out between multiple storage devices 107.
When the system is operated, due to having carried out data syn-chronization between multiple storage devices 107, equivalent to
In the system, the data for having carried out being preserved between data syn-chronization, i.e., multiple websites 101 between multiple websites 101 are substantially phases
With, so above-mentioned website 101 can be the website of standby usage each other, when when device fails in some website, again
Either due to certain natural and man-made calamities, whole website there occurs failure, the disaster tolerance that now embodiment of the present invention is provided
System can be by the circuit switching of connecting fault website to the circuit for connecting new website, to ensure the normal fortune of whole system
OK, it is ensured that the fluency of the system execution work.
By the disaster tolerance system that the embodiment of the present invention is provided has multiple storage devices 107, multiple storage devices
Storage network is constituted in the present system, and the storage network can be present among each website, to be produced to the system
Raw data are stored.
In embodiments of the present invention, storage device 107 can be disk array or other there is setting for store function
It is standby.In general, typically selection disk array as disaster tolerance system storage device 107 because disk array can be with
By identical data storage in the different places of multiple hard disks, data redundancy can be done by above-mentioned disk array, to ensure
The safety of data, adds the fault-tolerance of data；And it can in a balanced fashion overlap, carried with this in input-output operation
Rise the performance of disk array.Due to above-mentioned advantage, selected during the disaster tolerance system that the embodiment of the present invention is provided under normal conditions
Disk array is used as storage device 107, naturally it is also possible to select other equipment with store function as storage device 107,
Specific restriction is not done herein.
Above-mentioned data syn-chronization can be carried out data syn-chronization by Storage Virtualization gateway cluster 106 or pass through
Other equipment, or be the data syn-chronization between the module progress storage device that there is data syn-chronization function by other,
This is not specifically limited.The data syn-chronization can be that either to carry out data by asynchronous mode by way of synchronous same
Walk, either mode either asynchronous by way of synchronous carries out data syn-chronization, can realize that the embodiment of the present invention is carried
The disaster tolerance system problem to be solved of confession.
A kind of disaster tolerance system based on the virtualization network platform that the embodiment of the present invention is provided, with multiple websites 101,
Each website includes being stored between cluster virtual machine 102, Storage Virtualization gateway 105 and storage device 107, multiple websites
Data be substantially the same, when an error occurs can be timely by the circuit switching of connecting fault website to connecting other websites
Circuit, to ensure the continuity of business event, so as to avoid the loss that failure is brought to enterprise.
, can be only by connecting fault equipment when some specific device fails among particular situation
Circuit switching to the circuit for connecting remaining equipment, ensure the trouble-free operation of whole system with this.Concrete condition will be in following realities
Apply in example and be described in detail.
It refer to Fig. 3, the structural representation for second of disaster tolerance system that Fig. 3 is provided by the embodiment of the present invention, the present invention
The difference for the system that the system that embodiment is provided is provided with a upper inventive embodiments is, is carried in the embodiment of the present invention
In the system of confession, when some specific device fails, without the circuit for connecting overall website is switched over, but
By the circuit switching of the specific faulty equipment of connection to the circuit for connecting other identical equipment, to ensure when an error occurs, entirely
System normally can smoothly be run.
In embodiments of the present invention, the virtualization gateway cluster 106 is specially：
When the first virtual machine breaks down, the circuit switching for connecting first virtual machine is extremely connected into the second virtual machine
Circuit equipment.
Above-mentioned first virtual machine and the second virtual machine are not the title of some specific virtual machine, but will break down
Virtual machine to be collectively referred to as be the first virtual machine, it is the second virtual machine that the new virtual machine being switched to, which is collectively referred to as,.Work as switching
To new virtual machine be also the virtual machine of failure when, the circuit of connecting fault virtual machine can be continued to switch to connection another
The circuit of new virtual machine, untill the new virtual machine being switched to is available virtual machine.Now the virtual machine of failure according to
The first virtual machine so is referred to as, the new virtual machine being switched to is referred to as the second virtual machine.
Certainly before the second virtual machine is switched to, first the second virtual machine being switched to can be estimated, if the
Two virtual machines do not break down, then will connect the circuit switching of the first virtual machine to the circuit of the second virtual machine of connection；If the
Two virtual machines there occurs failure, then continue to be estimated next new virtual machine, not have faulty void until finding one
After plan machine, do not have faulty virtual machine to be referred to as the second virtual machine, then the circuit switching that the first virtual machine will be connected by described
To the circuit for connecting the second virtual machine.The above-mentioned evaluation work to new virtual machine is typically by Storage Virtualization gateway cluster 106
It is estimated or judges, naturally it is also possible to is miscellaneous equipment other modules are estimated either judgement, nothing
By being that what equipment is estimated to virtual machine, the realization of the embodiment of the present invention is not interfered with.
When the first storage device breaks down, the circuit switching for connecting first storage device is deposited to connecting second
The equipment for storing up the circuit of equipment.
Above-mentioned first storage device and the title that the second storage device is not some specific storage device, but will hair
It is the first storage device that the storage device of raw failure, which is collectively referred to as, and it is second to deposit that the new storage device being switched to, which is collectively referred to as,
Store up equipment.
The step of remaining switching, is switched to that the second virtual machine is similar with above-mentioned first virtual machine, and specific situation refer to
The description as described in switching virtual machine circuit is stated, be will not be described here.
When the first Storage Virtualization gateway failure, the circuit switching of the first Storage Virtualization gateway will be connected
To the equipment of the circuit of the second Storage Virtualization gateway of connection.
Above-mentioned first Storage Virtualization gateway and the second Storage Virtualization gateway are not some specific Storage Virtualization
The title of gateway, but it is the first Storage Virtualization gateway that the Storage Virtualization gateway broken down, which is collectively referred to as, will be switched
To new Storage Virtualization gateway to be collectively referred to as be the second Storage Virtualization gateway.
The step of remaining switching, is switched to that the second virtual machine is similar with above-mentioned first virtual machine, and specific situation refer to
The description as described in switching virtual machine circuit is stated, be will not be described here.
When an error occurs, Storage Virtualization gateway cluster can be by the circuit switching of connecting fault equipment to connecting remaining
Identical equipment is to ensure the operation of total system；After fault restoration, Storage Virtualization gateway cluster can also cut circuit
Gain original equipment.
In embodiments of the present invention, the virtualization gateway cluster 106 is additionally operable to：
When fault restoration is completed, the circuit switching that connects second website will be switched to connecting first website
Circuit.
When fault restoration is completed, the circuit switching for connecting the second website can be returned by connection first by staff manually
The circuit of website or from staff repaired failure it is rear to virtualization gateway cluster 106 sent reparation
The information of completion, or the instruction for the circuit that the circuit switching that connect the second website can be connected to the first website is sent, afterwards
After virtualization gateway cluster 106 receives information or instructed, connection will be switched to by virtualization gateway cluster 106 described
The circuit switching of second website is to the circuit for connecting first website.
Certainly, the information that above-mentioned reparation has been completed either is sent out can connect first by the circuit switching that connect the second website
The circuit of website instruction can staff send or sent automatically by the equipment being repaired, herein
It is not specifically limited.
Further, it can also be and first website gone out by the automatic decision of Storage Virtualization gateway cluster 106
It is repaired, such as after virtualization gateway cluster 106 receives the data that faulty equipment is sent in the first website, will switches
To connecting the circuit switching of second website to the circuit for connecting first website.In order to judge whether faulty equipment is true
Repaired completely, a time threshold can also be preset, when virtualization gateway cluster 106 continuously receive by first stop
When the time span for the data that faulty equipment is sent reaches threshold value set in advance in point, connection second website will be switched to
Circuit switching to the circuit for connecting first website, particular situation is for example：When virtualization gateway cluster 106 is received by the
Start timing during the data that faulty equipment is sent in one website, when the data for continuously receiving the faulty equipment transmission in the first website
Time span reach 10 seconds when, virtualization gateway cluster 106 by switch to connect second website circuit switching extremely
Connect the circuit of first website.Except setting time threshold value, failure in capacity threshold, i.e. the first website can also be set and set
When standby transmission or the size of data downloaded reach capacity threshold set in advance, virtualization gateway cluster 106 will switch to connection
The circuit switching of second website is to the circuit for connecting first website.It is, of course, also possible to other threshold values are set, or
It is that the circuit switching for connecting second website will be switched to the circuit for connecting first website by other method, herein
It is not especially limited.
In embodiments of the present invention, if being extremely to connect the circuit switching for connecting whole failure website when breaking down
The circuit of new website, when fault restoration is completed, virtualization gateway cluster 106 will just switch to connection second website
Circuit switching is to the circuit for connecting first website；If being to cut the circuit for connecting specific faulty equipment when breaking down
The circuit for connecting remaining identical equipment is shifted to, in fault restoration, gateway cluster 106 is correspondingly virtualized with regard to connection will be switched to
The circuit switching of remaining the identical equipment is to the circuit for connecting original faulty equipment.
Concretely, if the first virtual machine fault restoration complete when, Storage Virtualization gateway cluster 106 specifically for
By the circuit switching of connection second virtual machine to the circuit for connecting first virtual machine；If in the event of the first storage device
Barrier is repaired when completing, Storage Virtualization gateway cluster 106 specifically for the circuit switching by second storage device is connected extremely
Connect the circuit of first storage device；If when the fault restoration of the first Storage Virtualization gateway is completed, Storage Virtualization
Gateway cluster 106 is empty to first storage is connected specifically for the circuit switching that will connect the second Storage Virtualization gateway
The circuit of planization gateway.
Second of disaster tolerance system based on virtual platform that the embodiment of the present invention is provided, when some specific equipment
When breaking down, the circuit switching of specific faulty equipment can will be connected to the circuit for connecting other identical equipment, and without will
The circuit of the overall website of connection switches over, it is to avoid the waste of resource in total system.When faulty equipment reparation is completed, more
Virtualization gateway cluster 106 can will switch to the circuit that connects the new equipment and cut automatically in the further embodiment of the present invention
The circuit for connecting original faulty equipment is shifted to, to ensure the orderly work of total system, it is to avoid resource in total system
Waste.
Due in disaster tolerance system provided by the present invention, being generally to judge each by virtualizing gateway cluster 106
Whether equipment breaks down.But it is due to be judged by cluster, it is possible that the situation of fissure, i.e., multiple websites are mutual
Mutually judge into other side to break down, worked independently so that whole system is split into several mini systems.When the above-mentioned situation of appearance
When, it is necessary to arbitration node plays a role.Being related to the concrete condition of arbitration node will be described in detail in the following embodiments.
It refer to Fig. 4, the structural representation for the third disaster tolerance system that Fig. 4 is provided by the embodiment of the present invention, the present invention
The system that embodiment is provided connects compared with the system that embodiment before is provided between multiple Storage Virtualization gateways 105
Arbitration node 401 is connected to, i.e., adds arbitration node 401 in virtualization gateway cluster 106, the hair for preventing fissure situation
It is raw.
Due in disaster tolerance system provided by the present invention, being generally to judge each by virtualizing gateway cluster 106
Whether equipment breaks down.But it is due to be judged by cluster, it is possible that following situations：Multiple websites are sentenced mutually
It is broken into other side to break down, is worked independently so that whole system is split into several subsystems.
Above-mentioned situation is that system there occurs fissure.After fissure occurs for system, it may be sent out between different subsystems
Shared resource is fought in life, the problems such as reading while write shared storage, and above mentioned problem can be caused greatly to server and data storage
Damage.
Disaster tolerance system provided by the present invention, arbitration node 401 is connected between multiple Storage Virtualization gateways 105,
Arbitration node 401 is added in virtualization gateway cluster 106, the occurrence of for preventing fissure.The arbitration node
401 arbitration mode has many kinds, such as when there is fissure situation, is voted by the arbitration node 401 with odd number property
Mode judge which Storage Virtualization gateway is correct, now subsequent action can be judged just by above-mentioned
True Storage Virtualization gateway is continued executing with, and prevents the situation of fissure from occurring with this；When there is fissure situation, arbitration node
401 can also reacquire fault message and judge which Storage Virtualization gateway is correct, and now subsequent action can
Being continued executing with by arbitration node 401, prevent the situation of fissure from occurring with this.
In addition to the workflow of above-mentioned arbitration node, there can also be the arbitration node 401 of other working methods.No matter
Using which kind of arbitration node, as long as can prevent the situation of fissure from occurring.Certainly in the present invention, can also be without using secondary
Node 401 is cut out, such as during concrete application, when there is Storage Virtualization 105 failure of gateway, virtualizes gateway cluster
106 selection odd number Storage Virtualization gateways 105 judge whether the Storage Virtualization gateway there occurs in the way of ballot
Failure.Now due to fissure situation will not be produced, arbitration node 401 can not also be added in Storage Virtualization gateway cluster.
So, specific system architecture is not specifically limited herein depending on particular situation.
The third disaster tolerance system based on virtual platform that the embodiment of the present invention is provided, when there is fissure situation,
Can be arbitrated by arbitration node 401, fissure is avoided the occurrence of with this, it is to avoid fissure for system server with
And the destruction of data storage.
It refer to a kind of flow chart for disaster recovery method that Fig. 5 and Fig. 6, Fig. 5 are provided by the embodiment of the present invention；Fig. 6 is
The flow chart of the specific implementation method of step 102 in Fig. 5.
The disaster recovery method that the embodiment of the present invention is provided is applied to one kind described in the above-described embodiments and is based on virtually
Change the disaster tolerance system of platform, the system to be described in detail, will not be repeated here in the above-described embodiments, concrete condition referring to
Above-described embodiment.
The disaster recovery method that the embodiment of the present invention is provided, is specifically included：
Step 101：Described in the first website during device fails, the Storage Virtualization gateway cluster obtains described
The information of device fails in first website.
In this step, the method for obtaining fault message has many kinds, for example, when device fails, can send
Fault message, when virtualization gateway cluster receives the fault message sent by faulty equipment, by the circuit of connecting fault website
The circuit for connecting other websites is switched to, to ensure the operation of whole system；Or be due to equipment occur failure ratio compared with
Seriously, it is impossible to when sending data to virtualization gateway cluster, virtualization gateway cluster is opened when the said equipment data are interrupted
The said equipment, when the time of data outage reaching threshold value set in advance, is just judged as having occurred and that failure by beginning timing, will
Connection includes the circuit switching of the website of above-mentioned faulty equipment to the circuit of connection new site.For example when the data outage of equipment
Between be up to 10 seconds when, will connect include above-mentioned faulty equipment website circuit switching to connect new site circuit, with guarantor
Demonstrate,prove the normal operation of whole system.Above-mentioned threshold value set in advance can be the duration that data are once interrupted, and can also be one
The number of times that the device data is interrupted in the section time, such as, equally will be upper when the data of equipment have interrupted 5 times in 60 seconds
State equipment to be judged as having occurred and that failure, the circuit switching for connecting the website for including above-mentioned faulty equipment is extremely connected into new site
Circuit.In a practical situation, the situation of other failures can also be met, specific determination methods are also not limited to above-mentioned three
Kind, but which kind of no matter judges the method for equipment fault using, do not influence the realization of the present invention.
Under normal conditions, usually above-mentioned three kinds of methods are used in combination, i.e., when Storage Virtualization gateway cluster is received
The information that faulty equipment is sent, or when the time of data outage reaching threshold value set in advance, or when in data
When disconnected number of times reaches threshold value set in advance within a period of time, occur any one of above-mentioned three kinds of situations, all will connection
The circuit switching of website including faulty equipment is to the circuit for connecting new site, to ensure the normal operation of whole system.Certainly
One kind in above-mentioned three kinds of methods can also be selected, is not specifically limited in embodiments of the present invention.
Step 102：The Storage Virtualization gateway cluster will connect the circuit switching of first website to connecting second
The circuit of website.
In this step, the description as described in the first website and the second website, and the first website switch to the second website
Step is described in detail in the above-described embodiments, not reinflated herein to elaborate.
In this step, it is to cut the circuit for connecting whole website when some device fails in the first website
Shift to the circuit of the second website of connection.More specifically, only will connection event when can work as the device fails of some in website
Hinder the circuit switching of equipment to the circuit for connecting remaining same fault equipment, with this come the resource for the system of saving.Specific steps are such as
It is lower described：
Step 201：When the first virtual machine breaks down, it is empty that the Storage Virtualization gateway cluster will connect described first
Circuit of the circuit switching of plan machine to the second virtual machine of connection.
In step and following step 202 and step 203, on the first virtual machine, the second virtual machine, the first storage is set
Standby, the second storage device, the first Storage Virtualization gateway, the second Storage Virtualization gateway has been done in detail in the above-described embodiments
Describe in detail it is bright, it is not reinflated herein to be repeated.
Step 202：When the first storage device breaks down, the Storage Virtualization gateway cluster will connect described first
Circuit of the circuit switching of storage device to the second storage device of connection.
Step 203：When the first Storage Virtualization gateway failure, the Storage Virtualization gateway cluster will connect institute
The circuit switching of the first Storage Virtualization gateway is stated to the circuit of the second Storage Virtualization gateway of connection.
Above-mentioned steps 201, to the step performed by step 203, are, when the device fails of some in website, only will
The circuit switching of connecting fault equipment is to the circuit for connecting remaining same fault equipment, with this come the resource for the system of saving.
Further say, when the equipment broken down is repaired completion, virtualization gateway cluster will can be switched to
The circuit switching of second website is connected to the circuit for connecting first website.
By above-mentioned switch step, when faulty equipment reparation is completed, virtualization gateway cluster will can be switched to automatically
The circuit switching of the new equipment is connected to the circuit for connecting original faulty equipment, to ensure the orderly work of total system
Make, it is to avoid the waste of resource in total system.Specific step of repairing is described in detail in the above-described embodiments, detailed feelings
Condition refer to above-described embodiment, will not be repeated here.
A kind of disaster recovery method based on virtual platform that the embodiment of the present invention is provided, applied to institute in above-described embodiment
The disaster tolerance system of description, the disaster recovery method that the embodiment of the present invention is provided can be when system breaks down, timely will connection
The circuit of faulty equipment timely switches to the circuit for connecting remaining identical equipment, ensures the continuity of enterprise objective with this,
So as to avoid the loss that failure is brought to enterprise.After system repair completion, it can will further connect new automatically
The circuit switching of equipment is to the circuit for connecting former faulty equipment, to ensure the orderly work of total system, it is to avoid total system
The waste of middle resource.
Described above, above example is only to the technical scheme for illustrating the application, rather than its limitations；Although with reference to before
Embodiment is stated the application is described in detail, it will be understood by those within the art that：It still can be to preceding
State the technical scheme described in each embodiment to modify, or equivalent substitution is carried out to which part technical characteristic；And these
Modification is replaced, and the essence of appropriate technical solution is departed from the spirit and scope of each embodiment technical scheme of the application.
Claims (10)
1. a kind of disaster tolerance system based on virtual platform, it is characterised in that the system includes multiple websites, described in each
Website includes cluster virtual machine, Storage Virtualization gateway and storage device；
The cluster virtual machine is connected with the Storage Virtualization gateway, the Storage Virtualization gateway and the storage device
It is connected, the cluster virtual machine includes multiple virtual machines, multiple Storage Virtualization gateways are connected with each other to constitute storage
Gateway cluster is virtualized, when the device fails in the first website, the Storage Virtualization gateway cluster will connect described
The circuit switching of first website extremely connects the circuit of the second website；
Data syn-chronization is kept between multiple storage devices.
2. system according to claim 1, it is characterised in that the Storage Virtualization gateway cluster specifically for：
When the first virtual machine breaks down, the circuit switching of first virtual machine will be connected to the line of the second virtual machine of connection
Road.
3. system according to claim 2, it is characterised in that the Storage Virtualization gateway cluster specifically for：
When the first storage device breaks down, the circuit switching for connecting first storage device is set to the second storage is connected
Standby circuit.
4. system according to claim 3, it is characterised in that the Storage Virtualization gateway cluster specifically for：
When the first Storage Virtualization gateway failure, the circuit switching of the first Storage Virtualization gateway will be connected to even
Connect the circuit of the second Storage Virtualization gateway.
5. the system according to any one of Claims 1-4 claim, it is characterised in that the Storage Virtualization gateway is also
For：
When the fault restoration of first website is completed, the circuit switching of second website will be connected to connecting described first
The circuit of website.
6. system according to claim 1, it is characterised in that arbitration section is provided between multiple Storage Virtualization gateways
Point, the occurrence of for preventing fissure.
7. a kind of disaster recovery method based on virtual platform, it is characterised in that including：
When the device fails of the first website in multiple websites, the Storage Virtualization gateway cluster obtains described first
The information of the device fails of website；Wherein, the website is set including cluster virtual machine, Storage Virtualization gateway and storage
Standby, the cluster virtual machine includes multiple virtual machines, and multiple Storage Virtualization gateways are connected with each other virtual to constitute storage
Change and keep data syn-chronization between gateway cluster, multiple storage devices；
The Storage Virtualization gateway cluster by connect the circuit switching of first website to connect in the website second
The circuit of website.
8. method according to claim 7, it is characterised in that the Storage Virtualization gateway cluster will connect the first stop
The circuit switching of point includes to the circuit for connecting the second website in the website：
When the first virtual machine breaks down, the Storage Virtualization gateway cluster cuts the circuit for connecting first virtual machine
Change to the circuit of the second virtual machine of connection.
9. method according to claim 8, it is characterised in that the Storage Virtualization gateway cluster will connect the first stop
The circuit switching of point includes to the circuit for connecting the second website in the website：
When the first storage device breaks down, the Storage Virtualization gateway cluster will connect the line of first storage device
Road is switched to the circuit of the second storage device of connection.
10. method according to claim 9, it is characterised in that the Storage Virtualization gateway cluster will connect described first
The circuit switching of website includes to the circuit for connecting the second website in the website：
When the first Storage Virtualization gateway failure, it is empty that the Storage Virtualization gateway cluster will connect first storage
Circuit of the circuit switching of planization gateway to the second Storage Virtualization gateway of connection.
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Application publication date: 20170915 |