CN106681858A - Virtual machine data disaster tolerance method and management device - Google Patents
Virtual machine data disaster tolerance method and management device Download PDFInfo
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- CN106681858A CN106681858A CN201510762723.XA CN201510762723A CN106681858A CN 106681858 A CN106681858 A CN 106681858A CN 201510762723 A CN201510762723 A CN 201510762723A CN 106681858 A CN106681858 A CN 106681858A
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Abstract
The invention discloses a virtual machine data disaster tolerance method and management device, wherein the method comprises: acquiring state data and user data of a first virtual machine in a cloud data center, wherein the state data include memory data and resource state data; transmitting the state data and the user data to a cache system of a backup center for backup; when the first virtual machine faults, switching businesses based on the state data and the user data. The virtual machine data disaster tolerance method and management device have the advantages that the operational state data of the virtual machine are backed up remotely through virtual machine state-savable technology, data loss under emergency condition can be decreased, and business reliability is improved; by saving the operational state of the virtual machine through cache equipment, quick business restoring capacity can be effectively improved.
Description
Technical field
The present invention relates to cloud storage technical field, more particularly to a kind of virtual-machine data disaster recovery method and
Managing device.
Background technology
With the extensive application of Intel Virtualization Technology, IT resources will become as the same base runed of water power
Infrastructure, used as the supporting body of important cloud infrastructure, its resource management becomes cloud data center
Important research topic.The fast development of cloud computing allows operation system and data to be all intended to centralization
Deployment, industry starts to pay attention to across data center calamity for problem, to guarantee when emergency case is run into,
Application system can be enabled and configured in strange land, and data will not lose.Another kind of calamity of virtual machine is standby
Pattern is that application system is deployed in respectively Liang Ge data centers, normal condition with " load balancing " pattern
Under respectively undertake a part of business demand, calamity for when individually undertaken by one of system.
However, it is existing there are problems that based on the online disaster recovery method of virtual machine it is following some, first,
Asynchronous data backup mode can lose caching, internal storage data and the system of application system in emergency case
State, additionally, load-sharing mode is required to software, it is impossible to meet most application disaster tolerance
Demand, while there is also the problem of data safety.With the development of server technology, in server
Deposit little to some GB, the big scene for also having a upper TB, system state data is increasing, especially
It is that under the application scenarios of big internal memory, the preservation of status data seems more and more important.It is how effective
Carry out the preservation of status data, at present temporarily without good solution, modal method is
The snapshot functions of virtual machine, but this function generally all applies and deposited in the same of local data center
In storage system, it is also difficult to meet the standby needs of strange land calamity.
The content of the invention
In view of this, the invention solves the problems that a technical problem be to provide a kind of virtual-machine data and hold
Disaster method and managing device, can carry out remote backup to the running state data of virtual machine.
A kind of virtual-machine data disaster recovery method, including：The first virtual machine in collection cloud data center
Status data and user data, the status data includes：Internal storage data and resource status number
According to；The status data and user data are sent in the caching system of Disaster Preparation Center carry out it is standby
Part；When first virtual machine breaks down, carried out based on the status data and user data
Business switches.
According to one embodiment of present invention, further, the first of the collection cloud data center
The status data and user data of virtual machine includes：Periodically obtain and operate in cloud data center
The internal storage data of first virtual machine on physical server, resource status parameter and number of users
According to；Wherein, the resource status data include：CPU usage, memory usage, disk
Utilization rate.
According to one embodiment of present invention, further, it is described by the status data and user
Data is activation carries out backup in the caching system of Disaster Preparation Center to be included：The institute that periodically will be obtained
State status data and user data is sent to Disaster Preparation Center；Wherein, the status data is carried out adding
Close process；The caching system of the Disaster Preparation Center is deposited to the status data and user data
Storage.
According to one embodiment of present invention, further, it is described when first virtual machine occurs
Business switching is carried out during failure, based on the status data and user data to be included：During the calamity is standby
The second virtual machine in the heart is periodically received the status data and user data, according to the shape
The running status of the second virtual machine described in state data syn-chronization, and by the status data and user data
It is sent to the caching system；The caching system is by the status data for receiving and user data
Incremental data carries out fusion treatment with the status data and user data that store, and stores；Work as institute
When stating the first virtual machine and breaking down, second virtual machine is obtained and institute from the caching system
State the corresponding user data of the first virtual machine and loaded, carry out first virtual machine to
The switching at runtime of two virtual machines.
According to one embodiment of present invention, further, when first virtual machine breaks down
When, the status data corresponding with first virtual machine and use of acquisition from the caching system
User data；Start the 3rd virtual machine, the 3rd virtual machine loading and institute in the Disaster Preparation Center
The corresponding status data of the first virtual machine and user data are stated, first virtual machine is carried out to
The switching of three virtual machines.
According to one embodiment of present invention, further, by default time interval periodically
Heartbeat request is sent to first virtual machine；Receive the heartbeat request that first virtual machine is returned
Reply；If being not received by the heartbeat request in default time threshold to reply, judge
First virtual machine breaks down.
According to one embodiment of present invention, further, including：By default time interval week
Phase property ground sends icmp packet and detects the caching server to first virtual machine
TCP/UDP ports, whether the state for judging first virtual machine is upstate.
According to one embodiment of present invention, further, including：Periodically obtain described first
The resource status parameter of virtual machine；Judge that first virtual machine is based on the resource status parameter
It is no to break down.
According to one embodiment of present invention, further, including：Make in the caching system
The status data and user data are stored with SSD hard disks or Flash.
A kind of managing device of virtual-machine data disaster tolerance, including：Collecting unit, for gathering cloud number
The status data and user data of the first virtual machine according to center, the status data includes：It is interior
Deposit data and resource status data；Transmitting element, for the status data and user data to be sent out
It is sent in the caching system of Disaster Preparation Center and is backed up；Recovery unit, it is virtual for working as described first
When machine breaks down, business switching is carried out based on the status data and user data.
According to one embodiment of present invention, further, the collecting unit, is additionally operable to the cycle
Property obtain the interior poke of first virtual machine on the physical server for operating in cloud data center
According to, resource status parameter and user data；Wherein, the resource status data include：CPU
Utilization rate, memory usage, disk utilization rate.
According to one embodiment of present invention, further, the transmitting element, is additionally operable to the cycle
Property ground by obtain the status data and user data be sent to Disaster Preparation Center；Wherein, to described
Status data is encrypted, and the caching system of the Disaster Preparation Center is to the status data and use
User data is stored.
According to one embodiment of present invention, further, the recovery unit, including：Virtually
Machine starting module, for starting the second virtual machine in the Disaster Preparation Center；Wherein, the calamity is standby
Second virtual machine in center is periodically received the status data and user data, according to
The running status of synchronous second virtual machine of the status data, and by the status data and use
User data is sent to the caching system；The caching system is by the status data for receiving and user
The incremental data of data carries out fusion treatment with the status data and user data that store, and deposits
Storage；Virtual machine handover module, it is described for when judging that first virtual machine breaks down, making
Second virtual machine obtains the user data corresponding with first virtual machine from the caching system
And loaded, first virtual machine is carried out to the switching at runtime of the second virtual machine.
According to one embodiment of present invention, further, the virtual machine handover module, also uses
It is obtaining from the caching system and described first in when first virtual machine breaks down
The corresponding status data of virtual machine and user data；The virtual machine starting module, is additionally operable to
Start the 3rd virtual machine wherein in the Disaster Preparation Center, the virtual machine handover module makes the described 3rd
Virtual machine loads the status data and user data corresponding with first virtual machine, carries out described
Switching of first virtual machine to the 3rd virtual machine.
According to one embodiment of present invention, further, the recovery unit, including：Virtually
Machine testing module, for periodically sending the heart to first virtual machine by default time interval
Jump request；Receive the heartbeat request answer that first virtual machine is returned；If in the default time
The heartbeat request is not received by threshold value to reply, then judge that event occurs in first virtual machine
Barrier.
According to one embodiment of present invention, further, the virtual machine detection module, also uses
Icmp packet and detect in periodically sending to first virtual machine by default time interval
The TCP/UDP ports of the caching server, whether the state for judging first virtual machine be
Upstate.
According to one embodiment of present invention, further, the virtual machine detection module, also uses
In judging whether first virtual machine breaks down based on the resource status parameter.
The virtual-machine data disaster recovery method and managing device of the present invention, by using the state of virtual machine
Can Techniques of preserving, remote backup is carried out to the running state data of virtual machine, emergency case can be reduced
The loss of lower data, lifts service reliability, by using fortune of the cache device to virtual machine
Row state is preserved, and can effectively lift the fast restoration capabilities of business.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will
The accompanying drawing to be used needed for embodiment or description of the prior art is briefly described, it is aobvious and easy
Insight, drawings in the following description are only some embodiments of the present invention, common for this area
For technical staff, without having to pay creative labor, can be with according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is that the flow process of one embodiment of the virtual-machine data disaster recovery method according to the present invention is illustrated
Figure；
Application scenarios of the Fig. 2 according to one embodiment of the virtual-machine data disaster recovery method for the present invention
Schematic diagram；
Fig. 3 is the mould of one embodiment of the managing device of the virtual-machine data disaster tolerance according to the present invention
Block schematic diagram；
Fig. 4 is in one embodiment of the managing device of the virtual-machine data disaster tolerance according to the present invention
The module diagram of recovery unit.
Specific embodiment
The present invention is described more fully with reference to the accompanying drawings, wherein illustrating the example of the present invention
Property embodiment.Below in conjunction with the accompanying drawing in the embodiment of the present invention, to the skill in the embodiment of the present invention
Art scheme is clearly and completely described, it is clear that described embodiment is only the present invention one
Section Example, rather than the embodiment of whole.Based on the embodiment in the present invention, this area is general
The every other embodiment that logical technical staff is obtained under the premise of creative work is not made, all
Belong to the scope of protection of the invention.With reference to each figure and embodiment to technical scheme
Carry out many descriptions.
" first ", " second " hereinafter etc., to distinguish in description, other are not special
Implication.
Fig. 1 is that the flow process of one embodiment of the virtual-machine data disaster recovery method according to the present invention is illustrated
Figure, as shown in Figure 1：
Step 101, the status data and number of users of the first virtual machine in collection cloud data center
According to status data includes：Internal storage data and resource status data.
Step 102, status data and user data are sent in the caching system of Disaster Preparation Center
Row backup；Caching system can be the calamity with High-speed I/O ability for storage system, in caching system
Used in the storage state such as SSD hard disks or Flash data and user data.
Step 103, when the first virtual machine breaks down, is entered based on status data and user data
Industry business switching.
In one embodiment, periodically obtain on the physical server operated in cloud data center
The internal storage data of the first virtual machine, resource status parameter and user data etc..User data is referred to
The various applications for running on a virtual machine or the data of configuration, resource status data include：CPU
Utilization rate, memory usage, disk utilization rate etc..Periodically by the status data for obtaining and use
User data is sent to Disaster Preparation Center, status data is encrypted when sending, Disaster Preparation Center
Caching system status data and user data are stored.
In one embodiment, the second virtual machine is started in Disaster Preparation Center, the second virtual machine is not
Just start in failure, but pre-actuate and receiving data.Second virtual machine is periodically received
Status data and user data, according to the running status of synchronous second virtual machine of status data, and will
Status data and user data are sent to caching system.Caching system by the status data for receiving and
The incremental data of user data carries out fusion treatment with the status data and user data that store, and
Storage.
When the first virtual machine breaks down, the second virtual machine obtains empty with first from caching system
The corresponding user data of plan machine is simultaneously loaded, and carries out the dynamic of the first virtual machine to the second virtual machine
State switches.Or, when the first virtual machine breaks down, obtain from caching system with first
The corresponding status data of virtual machine and user data, start the 3rd virtual machine in Disaster Preparation Center,
3rd virtual machine loads the status data and user data corresponding with the first virtual machine, carries out first
Switching of the virtual machine to the 3rd virtual machine.3rd virtual machine is started when breaking down.
Virtual-machine data disaster recovery method in above-described embodiment, solves real in the disaster recovery and backup systems of strange land
The backup problem of existing virtual machine state data, based on virtualization layer to the CPU state of virtual machine and
Internal storage data etc. is backed up in realtime in the caching system of Disaster Preparation Center, effectively reduces emergency case
The loss of data of lower application system, shortens the recovery time of system.
In one embodiment, resource recovery efficiency can not be solved for across data center data calamity is standby
The problem lost with state, load-sharing mode has strict distributed structure/architecture requirement to operation system
The problems such as with data security requirements, by based on CPU state and internal memory of the virtualization layer to virtual machine
Data are backed up in realtime in the caching system of Disaster Preparation Center, different from the snapshot of conventional virtual machine
Processing mode, by the way that status data is transmitted directly in the Cache of strange land disaster recovery and backup systems,
The state free of losses disaster recovery method and system of virtual machine are realized, above-mentioned problem is can solve the problem that.
It is in Disaster Preparation Center by using cache devices such as SSD, FLASH and standby as required
The virtual machine specification of part sets corresponding spatial cache.By operating virtual machine CPU state and interior
Deposit data (the OS keys that can use virtual machine simplify deployment) by way of encryption, by shape
State data are backuped in the corresponding cache memory space of Disaster Preparation Center.
Calamity is standby when recovering, after the virtual machine of Disaster Preparation Center starts, according to HA start-up modes, directly
The stress state data from cache, realize that the online calamity of virtual machine of the low loss of state is standby, this
One application scenarios of bright virtual-machine data disaster recovery method are as shown in Figure 2.
In one embodiment, it is assumed that have in primary data center system virtual machine A and virtual machine B,
Virtual machine C totally three virtual machines, and different virtualization softwares are carried on respectively, it is assumed that respectively
ESXi, KVM, Xen, the status data of its virtual machine, including internal storage data, CPU state
Data etc., by these virtualization software Direct Acquisitions, and will not can make to the operation of system
Into significantly impact, for example, can utilize the snapshot functions of virtual machine.Backup Data centring system
In, start virtual machine a and virtual machine b.Virtualization software according to system manager configuration, week
The status data of the acquisition virtual machine of phase property, strange land is transferred to by incremental data by way of encryption
Disaster recovery and backup systems cache in.
Assume that the data of virtual machine A and virtual machine B are extremely important, it is desirable to which status data is not lost substantially
Lose, then start virtual machine a and virtual machine b at Backup Data center, respectively real-time synchronization virtual machine A
The status data of the increment reached with the internal storage data of virtual machine B, especially real-time Transmission, and by
Virtual machine a and virtual machine b are respectively to the incremental data in the status data of virtual machine A and virtual machine B
In being fused to cache systems.Additionally, the data syn-chronization of virtual machine C is also completed by virtual machine a.
According to the configuration of system, the status data capture cycle of virtual machine A can be 2 seconds, virtual machine B's
The capture cycle can be 4 seconds, and the status data of virtual machine C, then can be 15 seconds etc..
When the data center that virtual machine A, B, C are located occurs abnormal conditions, it is assumed that whole power down
When, virtual machine a can direct adapter virtual machine A all data and status data, complete virtual
The strange land of machine A starts, and the loss of status data is about the data produced in 2 seconds.And be similar to
Ground, for virtual machine B, it is also possible to received by virtual machine b and backed up.For virtual machine c, due to
Its importance is not so good as the above two, then need to start the new virtual machine of generation to take over its industry in strange land
Business, such as using the HA startup functions of virtual machine, and load its system in cache systems
Data, such as using the recovery function of virtual machine snapshot.HA (High Availability) is
It is used for ensureing that the uninterrupted operation demand of enterprise-level application is produced in enterprise's applied environment of VMware
A raw component, it is allowed in a cluster in the case of resource grant, will appear from failure
VM above ESX main frames is started up on other main frames.
Virtual-machine data disaster recovery method in above-described embodiment, can protect by using the state of virtual machine
Technology is deposited, remote backup is carried out to the running state data of virtual machine, number under emergency case can be reduced
According to loss, lifted service reliability, by using operation shape of the cache device to virtual machine
State is preserved, and can effectively lift the fast restoration capabilities of business.
In one embodiment, whether judge the operation of virtual machine can normally have various methods.Press
Default time interval periodically sends heartbeat request to the first virtual machine, receives the first virtual machine
The heartbeat request of return is replied.If being not received by heartbeat request in default time threshold to answer
It is multiple, then judge that the first virtual machine breaks down.Or, by default time interval periodically to
First virtual machine sends icmp packet and detects the TCP/UDP ports of caching server, judges
Whether the state of the first virtual machine is upstate.First can also be judged based on resource status parameter
Whether virtual machine breaks down.
In one embodiment, as shown in Figure 3,4, the present invention provides a kind of virtual-machine data and holds
The managing device of calamity.The status number of the first virtual machine in the collection cloud data center of collecting unit 31
According to and user data, status data includes：Internal storage data and resource status data.Transmitting element 32
Status data and user data are sent in the caching system of Disaster Preparation Center and are backed up.When first
When virtual machine breaks down, recovery unit 33 is carried out business and is cut based on status data and user data
Change.
In one embodiment, collecting unit 31 is periodically obtained and operated in cloud data center
The internal storage data of the first virtual machine on physical server, resource status parameter and user data, money
Source status data includes：CPU usage, memory usage, disk utilization rate etc..Send single
The status data and user data of acquisition are periodically sent to Disaster Preparation Center by unit 32, and to shape
State data are encrypted, and the caching system of Disaster Preparation Center is carried out to status data and user data
Storage.
Recovery unit 33 includes：Virtual machine starting module 331, virtual machine handover module 332 and void
Intend machine testing module 313.It is virtual that virtual machine starting module 331 starts second in Disaster Preparation Center
Machine.Second virtual machine is periodically received status data and user data, according to status data synchronization
The running status of the second virtual machine, and status data and user data are sent to into caching system.It is slow
Deposit system is by the incremental data of the status data for receiving and user data and the status data that stores
Fusion treatment is carried out with user data, and is stored.
When judging that the first virtual machine breaks down, virtual machine handover module 332 makes the second virtual machine
The user data corresponding with the first virtual machine is obtained from caching system and is loaded, carry out the
Switching at runtime of one virtual machine to the second virtual machine.
In one embodiment, when the first virtual machine breaks down, virtual machine handover module 332
The status data corresponding with the first virtual machine obtained from caching system and user data.Virtually
Machine starting module 331 starts the 3rd virtual machine wherein in Disaster Preparation Center, virtual machine handover module
332 make the 3rd virtual machine load the status data and user data corresponding with the first virtual machine, enter
Switching of the virtual machine of row first to the 3rd virtual machine.
Virtual machine detection module 333 is periodically sent by default time interval to the first virtual machine
Heartbeat request；The heartbeat request for receiving the return of the first virtual machine is replied.If in default time threshold
Heartbeat request answer is not received by value, then judges that the first virtual machine breaks down.Virtual machine examination
Survey module 333 periodically can also send ICMP by default time interval to the first virtual machine
Message simultaneously detects the TCP/UDP ports of caching server, whether judges the state of the first virtual machine
For upstate.Virtual machine detection module 333 can also judge that first is empty based on resource status parameter
Whether plan machine breaks down.
Virtual-machine data disaster recovery method and managing device that above-described embodiment is provided, by using virtual
The state of machine can Techniques of preserving, remote backup is carried out to the running state data of virtual machine, can reduce
The loss of data under emergency case, lifts service reliability, and by using cache device pair
The running status of virtual machine is preserved, and can effectively lift the fast restoration capabilities of business.
The method of the present invention and system may be achieved in many ways.For example, can pass through soft
Part, hardware, firmware or software, hardware, firmware any combinations come realize the present invention side
Method and system.It is of the invention for said sequence the step of method merely to illustrating
The step of method, is not limited to order described in detail above, unless specifically stated otherwise.
Additionally, in certain embodiments, also the present invention can be embodied as recording journey in the recording medium
Sequence, these programs include the machine readable instructions for realizing the method according to the invention.Cause
And, the record that the present invention also covers storage for performing the program of the method according to the invention is situated between
Matter.
Description of the invention is given for the sake of example and description, and is not exhaustively
Or the form disclosed in limiting the invention to.Many modifications and variations are for the common skill of this area
It is obvious for art personnel.It is to more preferably illustrate the principle of the present invention to select and describe embodiment
And practical application, and one of ordinary skill in the art is made it will be appreciated that the present invention is suitable so as to design
In the various embodiments with various modifications of special-purpose.
Claims (17)
1. a kind of virtual-machine data disaster recovery method, it is characterised in that include：
The status data and user data of the first virtual machine in collection cloud data center, the state
Data include：Internal storage data and resource status data；
The status data and user data are sent in the caching system of Disaster Preparation Center carry out it is standby
Part；
When first virtual machine breaks down, entered based on the status data and user data
Industry business switching.
2. the method for claim 1, it is characterised in that the collection cloud data center
The first virtual machine status data and user data include：
Periodically obtain first virtual machine on the physical server operated in cloud data center
Internal storage data, resource status parameter and user data；
Wherein, the resource status data include：CPU usage, memory usage, disk
Utilization rate.
3. method as claimed in claim 2, it is characterised in that described by the status data
Being sent to user data in the caching system of Disaster Preparation Center carries out backup and includes：
Periodically the status data for obtaining and user data are sent to into Disaster Preparation Center；Its
In, the status data is encrypted；
The caching system of the Disaster Preparation Center is stored to the status data and user data.
4. method as claimed in claim 3, it is characterised in that described when described first is virtual
Business switching is carried out when machine breaks down, based on the status data and user data to be included：
The second virtual machine in the Disaster Preparation Center is periodically received the status data and number of users
According to according to the running status of synchronous second virtual machine of the status data, and by the state
Data and user data are sent to the caching system；
The caching system by the incremental data of the status data for receiving and user data with store
Status data and user data carry out fusion treatment, and store；
When first virtual machine breaks down, second virtual machine is from the caching system
Obtain the user data corresponding with first virtual machine and loaded, carry out described first
Switching at runtime of the virtual machine to the second virtual machine.
5. method as claimed in claim 3, it is characterised in that：
When first virtual machine breaks down, obtain from the caching system with described the
The corresponding status data of one virtual machine and user data；
Start the 3rd virtual machine in the Disaster Preparation Center, the 3rd virtual machine loading and described the
The corresponding status data of one virtual machine and user data, carry out first virtual machine empty to the 3rd
The switching of plan machine.
6. the method as described in claim 4 or 5, it is characterised in that include：
Periodically heartbeat request is sent by default time interval to first virtual machine；
Receive the heartbeat request answer that first virtual machine is returned；
If being not received by the heartbeat request in default time threshold to reply, institute is judged
State the first virtual machine to break down.
7. method as claimed in claim 6, it is characterised in that include：
Periodically icmp packet is sent by default time interval to first virtual machine and examine
The TCP/UDP ports of the caching server are surveyed, whether the state of first virtual machine is judged
For upstate.
8. method as claimed in claim 7, it is characterised in that include：
Periodically obtain the resource status parameter of first virtual machine；
Judge whether first virtual machine breaks down based on the resource status parameter.
9. the method for claim 1, it is characterised in that include：
The SSD hard disks used in the caching system or Flash store the status data and user
Data.
10. a kind of managing device of virtual-machine data disaster tolerance, it is characterised in that include：
Collecting unit, for gathering cloud data center in the first virtual machine status data and user
Data, the status data includes：Internal storage data and resource status data；
Transmitting element, for the status data and user data to be sent to the caching of Disaster Preparation Center
Backed up in system；
Recovery unit, for when first virtual machine breaks down, based on the status data
Business switching is carried out with user data.
11. devices as claimed in claim 10, it is characterised in that：
The collecting unit, is additionally operable to periodically obtain the physical services operated in cloud data center
The internal storage data of first virtual machine on device, resource status parameter and user data；
Wherein, the resource status data include：CPU usage, memory usage, disk
Utilization rate.
12. devices as claimed in claim 11, it is characterised in that：
The transmitting element, is additionally operable to the status data for obtaining and user data periodically
It is sent to Disaster Preparation Center；Wherein, the status data is encrypted, the Disaster Preparation Center
Caching system the status data and user data are stored.
13. devices as claimed in claim 12, it is characterised in that：
The recovery unit, including：
Virtual machine starting module, for starting the second virtual machine in the Disaster Preparation Center；Wherein,
The second virtual machine in the Disaster Preparation Center is periodically received the status data and user data,
According to the running status of synchronous second virtual machine of the status data, and by the status data
The caching system is sent to user data；The caching system by the status data for receiving and
The incremental data of user data carries out fusion treatment with the status data and user data that store, and
Storage；
Virtual machine handover module, for when judging that first virtual machine breaks down, making institute
State the second virtual machine and the user corresponding with first virtual machine is obtained from the caching system
Data are simultaneously loaded, and carry out first virtual machine to the switching at runtime of the second virtual machine.
14. devices as claimed in claim 12, it is characterised in that：
The virtual machine handover module, is additionally operable to when first virtual machine breaks down, from institute
State the status data corresponding with first virtual machine and user data obtained in caching system；
The virtual machine starting module, is additionally operable to start the 3rd virtual machine in the Disaster Preparation Center
Wherein, the virtual machine handover module makes the 3rd virtual machine loading virtual with described first
The corresponding status data of machine and user data, carry out first virtual machine to the 3rd virtual machine
Switching.
15. devices as described in claim 13 or 14, it is characterised in that：
The recovery unit, including：
Virtual machine detection module, for periodically virtual to described first by default time interval
Machine sends heartbeat request；Receive the heartbeat request answer that first virtual machine is returned；If pre-
If time threshold in be not received by the heartbeat request and reply, then judge first virtual machine
Break down.
16. devices as claimed in claim 15, it is characterised in that：
The virtual machine detection module, is additionally operable to by default time interval periodically to described
One virtual machine sends icmp packet and detects the TCP/UDP ports of the caching server, sentences
Whether the state of disconnected first virtual machine is upstate.
17. devices as claimed in claim 15, it is characterised in that：
The virtual machine detection module, is additionally operable to judge described first based on the resource status parameter
Whether virtual machine breaks down.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109586789A (en) * | 2017-09-29 | 2019-04-05 | 深圳市中兴微电子技术有限公司 | A kind of system and method for realizing equipment disaster tolerance based on optical network unit |
| CN109992449A (en) * | 2017-12-31 | 2019-07-09 | 中国移动通信集团四川有限公司 | Backup image management system, method, equipment and medium |
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