CN101819545B - Method for realizing platform migration by using virtualization technology - Google Patents
Method for realizing platform migration by using virtualization technology Download PDFInfo
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Abstract
The invention discloses a method for realizing platform migration by using virtualization technology. The method comprises the following steps of: building a virtualization platform on a source server, configuring a source memory device and establishing mapping relationship between the original memory device and the source server to form a source virtualization platform; determining whether the migration is online migration or offline migration, if the migration is the online migration, stopping trunking services and normally operating application on a single source virtual machine so as to ensure the non-interruption of the services; deploying virtualization backup software on a backup server to form a virtualization backup tool; backing up a mapping file of the source virtual machine by using the virtualization backup tool; building, deploying and storing a target virtualization platform; recovering the mapping file to the target virtualization platform; and starting the application on the target virtualization platform and stopping the application on the source virtualization platform at the same time so as to realize the cross-hardware platform online migration of the application. In the method, as the online backup function of the virtualization backup tool is utilized, so that all the services operated in a trunking environment are not interrupted.
Description
Technical field
The present invention relates to a kind of method of utilizing the migration of Intel Virtualization Technology implementation platform; Specifically be a kind of on different hardware platforms the method for migrate application, be a kind of method of utilizing virtual backup functionality the virtual platform of having disposed cluster environment to be implemented online migration.
Background technology
Along with the fast development of Intel Virtualization Technology, more and more enterprises has been disposed virtualization applications in production environment.Intel Virtualization Technology improves resource utilization through the integration to server; Many-to-one integration mode makes enterprise propose higher challenge to the security of using, and therefore a lot of enterprises can be through protecting the key application of enterprise at the traditional software of trooping of virtual platform deploy (like the MSCS of Microsoft).The speed of development of hardware technology increases with how much radixes, and new server can provide several times of travelling speed to original server; Hardware devices such as original server, storage failure rate and time behind the continuous service in several years are proportional, and these all are that enterprise is using the major reason of moving to new platform from original hardware platform.For non-critical application, promptly enterprise does not dispose the application of cluster environment, can use virtualized storage Migration tools using from original server migration to new server; And, promptly be deployed in (like the MSCS of the Microsoft) environmental applications of trooping for key application, and enterprise does not often allow in transition process, to occur service disconnection, and this has just proposed challenge to whole transition process.In the virtualization system framework, the key application of having disposed cluster environment is carried out the hardware platform migration two conditions are arranged: the one, because key in application property must keep professional continuous service; The 2nd, realize striding the migration of hardware platform, promptly new hardware platform follows original hardware platform not under same virtualization architecture.Realize above-mentioned condition; Traditional backup mode can't realize striding the migration of hardware platform at present; Reason is: one, and through backup software: traditional backup software is through a backup agent is installed on virtual machine, then through acting on behalf of the data of backup virtual machine the inside; But can not back up the total system mirror image, and only Backup Data can't move by implementation platform to the mode of new hardware platform; Two, through virtual Migration tools: because the prerequisite that virtual Migration tools uses is destination server and source server must be to share storage, and new hardware platform used be new memory device, can't be through virtual Migration tools realization.Therefore need a kind of method, can keep the application on the virtual machine externally not interrupt, again can be to new hardware platform with the application migration in the virtual framework.
Summary of the invention
In order to overcome the shortcoming that above-mentioned prior art exists; The object of the present invention is to provide a kind of method of utilizing the migration of Intel Virtualization Technology implementation platform; When it has realized that virtual platform in the source server cluster environment is moved to the virtual platform of destination server, keep using external service and do not interrupt.
Technical scheme of the present invention is: a kind of method of utilizing the migration of Intel Virtualization Technology implementation platform, and described method comprises:
A) the source virtual platform is trooped and is used the process that forms, and this process comprises:
Be used on source server, building the step of virtual platform;
The step that is used for the source of configuration memory device and communicates by letter with source server;
The step that is used for application deployment under the virtualization architecture of source;
Be used to the step of the deploying virtual machine cluster environment on the source server;
B) process of affirmation migration classification, this process comprises:
Be used to confirm that online migration still is the step of off-line migration;
If online migration, the step of then entering " service that stops to troop is applied in normally operation on the independent source virtual machine ";
If off-line migration, the then step of entering " utilizing virtual storage Migration tools " all data migtations to the purpose memory device of source memory device;
C) be applied in the process of launching on the virtual platform of destination server, this process comprises:
Be used to stop to troop service, be applied in the step of normal operation on the independent source virtual machine;
Be used for forming the step of virtual backup tool at the virtual backup software of backup server deploy;
Be used to back up out the step of source virtual machine image file;
The step that is used to build the purpose virtual platform and disposes storage;
Be used to recover the step of image file to the purpose virtual platform;
Be used for launching application the step that virtual platform stops to use in the source simultaneously at the purpose virtual platform.
As further technical scheme of the present invention: above-mentioned online migration realizes through following steps:
Find out all source virtual machines that operation is trooped and used in the cluster environment of above-mentioned source server;
Confirm externally providing at present the source virtual machine of application service;
Stop the service of trooping of other source virtual machines that application service is not provided, keep being applied on the independent source virtual machine moving;
Adopt virtual backup tool to implement online migration.
Technical scheme further:
In this method, the virtual backup tool of described employing is implemented migration and may further comprise the steps:
Select source memory device to be migrated;
Select the purpose memory device to store data to be migrated;
Each item setting of the purpose virtual machine after editor's migration;
The purpose memory device is set to state of activation.
In this method, the described step that backs up out the source virtual machine image file comprises following little step:
Confirm to adopt virtual backup tool;
Selection needs the source virtual machine image file of backup;
For described virtual backup tool is formulated backup policy;
Select the recovery target of image file.
In this method, above-mentioned B) confirm in the process of migration classification that through the require rank of application to business continuance is set in advance, requiring rank to divide the migration classification according to this then is online migration and off-line migration.
The invention has the beneficial effects as follows: the present invention is owing to used virtual backup functionality; Need on each virtual machine, all not dispose the agency; Therefore only need is all having remarkable advantages at the independent virtual backup software of backup server deploy aspect performance and the backup cost.In the process that is applied in the hardware platform migration, at first stop the service of trooping, keep being applied on the independent virtual machine moving, thereby the business that ensured is not interrupted; Secondly through virtualized backup tool whole source memory device is done online reflection level backup, return to the image file that backs up out under the purpose virtual platform then, thereby realized using migration from source platform to the purpose platform.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is done further description:
Fig. 1 is the schematic flow sheet of the embodiment of the invention,
Fig. 2 is the concrete steps flow process of online migration described in Fig. 1,
Fig. 3 is the concrete steps flow process of the migration of off-line described in Fig. 1,
Fig. 4 adopts virtual backup tool to implement migration may further comprise the steps among Fig. 2
Fig. 5 is the flow chart of steps that backs up out the source virtual machine image file among Fig. 1.
Embodiment
Realize being applied in the migration on the hardware platform, two kinds of methods are arranged: off-line migration and online migration.
If the off-line migration, that method is fairly simple comparatively speaking, can realize through following method: at first all the virtual machine shutdown on the source server, closing server stops the service operation on all virtual machines then.On destination server, build the virtual platform identical then with source server; And carry out mapping relations with source memory device and target storage device; Be installed in virtualized storage Migration tools on the virtual machine of target virtual platform then, utilize virtual storage Migration tools with all data migtations on the memory device of source to target storage device.The application that starts the target virtual machine at last can realize the off-line migration.
If online migration; Because disposed the application of trooping; Following some restriction is arranged: 1. trooping on the virtual platform used and to be forbidden online virtual machine member in trooping being done virtual machine (vm) migration or storage migration, and this has just determined the storage migration pattern that is used for cold migration to realize; 2. operate in the application on the virtual platform in the cluster environment, the virtual machine member in trooping is the mode of shared disk, forbids its shared disk is done the operation based on snapshot, therefore also can't realize through the synchronizing function between the memory device.3. to realize that online migration platform just must be able to back up the total system reflection; Rather than data in the standby system only; Traditional backup tool can only be through the data in the mode standby system of installation agent on each virtual machine, and therefore traditional backup mode also can't be realized.
The basic ideas of the method for the invention are: on source server, build virtual (like the ESX Server of Vmware) platform, carry out the division of source memory device and set up mapping relations with source server, form a virtual base platform.Installing operating system on virtual platform (like Windows Server2003) and application, for the service that guarantees key business is not interrupted, wherein several the virtual machine deploy cluster environment (like MSCS) under virtual framework guarantee the operation of key application.Present embodiment be a kind of can be the method that operates in application migration to the new hardware platform under the cluster environment.Under virtual framework, the operating system of whole virtual machine, application, data and configuration file thereof all are to be encapsulated in the file and to leave in the memory device.By this file attributes of virtual framework, virtual backup tool can be realized the backup to whole virtual machine through the image file of backup virtual machine, and this also is the essential condition that this method realizes.
The present invention realizes trooping several steps below the online migration branch of using: the service of trooping of each node at first stopping to troop through manual configuration; The original like this application of having disposed cluster environment just remains on one of them node operation; So both can keep business not interrupt, remove the restriction of forbidding virtual machine and storage are done migration and snapshot under the cluster environment again; Then virtualized backup tool is installed on a PC server or the desktop computer; And make itself and the source and target server can mutual communication; The node that uses virtual backup tool that isolated operation is used backs up out with the mode of videoing; So just be equivalent to back up system, application, data and the configuration file of this node.At last the image file that backs up out is returned on the purpose virtual platform, the application on the source server is closed in the virtual machine application that starts on the destination server simultaneously, has so just realized using the online migration of striding hardware platform.
This utilizes the employed hardware of method of Intel Virtualization Technology implementation platform migration to comprise: server, memory device.The server that present embodiment adopted is based on the PC server of X86 framework, and memory device can be ISCSI, NAS or FC storage.Virtualization architecture can be the virtual architecture platform of similar Vmware, and cluster environment can be the cluster environment of the MSCS of similar Microsoft.
As shown in Figure 1, the said method of Intel Virtualization Technology implementation platform migration of utilizing of present embodiment comprises three processes: the source virtual platform is trooped and is used the process that forms; Confirm the process of migration classification; Be applied in the process of launching on the virtual platform of destination server.Concrete through the following steps realization:
One, the source virtual platform is trooped and is used the process that forms:
Step 101: on source server, build virtual platform.This step is installed the virtualization software of the ESX Server of similar Vmware on the PC of X86 framework server, and the operating system that similar WINDOWS SERVER 2003 is installed above that.
Step 102: the source of configuration memory device is also communicated by letter with source server.This step comprises that the hard disk in the storage is RAID divides the division of LUN, and the mapping relations of configuration store and server.
Step 103: application deployment under the virtualization architecture of source.This step is to support the application of cluster environment in the operating system deploy of virtual machine, such as database application.
Step 104: be the deploying virtual machine cluster environment on the source server.This step will be built the cluster environment of similar MSCS on the virtual platform of having disposed application, thereby will have guaranteed the high availability of business in the cluster environment.
Two, confirm the process of migration classification:
Step 105: confirm that the migration classification is online migration or off-line migration.
Divide the migration classification, the require rank of application to business continuance at first is set; Rank division migration classification is online migration and off-line migration as requested.According to customer demand, if very high, in transition process, do not allow service disconnection to the business continuance requirement of using, then select the mode of online migration; If allow temporary transient interrupting service operation in transition process, then select the mode of off-line migration.
If the off-line migration then gets into step 106: utilize virtual storage Migration tools all data migtations to the purpose memory device of memory device.Need only at destination server deploy virtual platform, and configure the mapping relations of destination server and purpose memory device, just can make to be applied in launching of new hardware platform, thus the purpose of realization migration.
If online migration then gets into step 108: the service that stops to troop is applied in normally operation on the independent virtual machine.
Three, be applied in the process of launching on the virtual platform of destination server:
Step 108: the service that stops to troop is applied in normally operation on the independent virtual machine.This step is through the service of trooping of the manual configuration source virtual machine in cluster environment out of service; Only stay an original application of source virtual machine operation in trooping; Can make to use to have broken away from cluster environment, guarantee the carrying out of virtual backup, keep business not interrupt again simultaneously.
Step 109: form virtual backup tool at the virtual backup software of backup server deploy.This step is installed virtualized backup software on the server of an X86 framework or desktop computer, and configures backup policy and backup environment, makes it can both be communicated with source server and destination server.
Step 110: back up out the source virtual machine image file.To the video backup of level of the source virtual machine of the service that stops to troop, the image file of backup is placed on the local memory device this step, so that next step returns on the purpose memory device through backup server.
Step 111: build the purpose virtual platform and dispose storage.This step requires at the virtual platform of building on the destination server identical with virtual platform on the source server; To guarantee that business can normally start on destination server; But and do not require the consistance of Hardware configuration, so long as the PC server of X86 framework gets final product.The purpose memory device does not have the coherence request with the source memory device yet, also can normally use as long as can configure mapping relations with destination server.
Step 112: recover image file to the purpose virtual platform.This step is connected backup server with destination server; Utilize the virtual backup tool on the backup server to return to the image file of virtual machine on the source server that backup server backed up on the purpose memory device, thereby make data migtation to the new memory device of source memory device.
Step 113: launch application at the purpose virtual platform, virtual platform stops to use in the source simultaneously.This step makes to be applied on the new hardware platform through the virtual machine on the startup destination server and moves, and closes the operation of using on the source server simultaneously, thereby has finally realized being applied in the migration of different hardware platforms.
As shown in Figure 2, the following concrete steps of passing through of above-mentioned online migration realize:
Step 201: find out all source virtual machines that operation is trooped and used in the cluster environment;
Step 202: the source virtual machine of confirming externally providing at present application service;
Step 203: stop the service of trooping of other source virtual machines, keep being applied in independent source virtual machine operation;
Step 204: confirm to adopt virtual backup tool migration.
As shown in Figure 3, the concrete refinement step of above-mentioned off-line migration comprises:
Step 301: close every source virtual machine respectively, make the application on it stop external service;
Step 302: the mode of confirming to adopt virtual storage Migration tools;
Step 303: virtual storage Migration tools is installed on separate server or desktop computer;
Step 304: the configuration backup server is communicated by letter with source virtual platform and purpose virtual platform.
As shown in Figure 4, the virtual backup tool of above-mentioned employing is implemented migration and may further comprise the steps:
Step 401: select source memory device to be migrated;
Step 402: select the purpose memory device to store data to be migrated;
Step 403: each item setting of the purpose virtual machine after editor's migration;
Step 404: new purpose memory device is set to state of activation.
As shown in Figure 5, the above-mentioned source virtual machine image file that backs up out is realized through following steps:
Step 501: confirm to adopt virtual backup tool;
Step 502: selection needs the source virtual machine image file of backup;
Step 503: for virtual backup tool is formulated backup policy;
Step 504: the recovery target of selecting image file.
Claims (3)
1. method of utilizing Intel Virtualization Technology implementation platform migration is characterized in that described method comprises:
A) the source virtual platform is trooped and is used the process that forms, and this process comprises:
Be used on source server, building the step of virtual platform;
The step that is used for the source of configuration memory device and communicates by letter with source server;
The step that is used for application deployment under the virtualization architecture of source;
Be used to the step of the deploying virtual machine cluster environment on the source server;
B) process of affirmation migration classification, this process comprises:
Be used to confirm that online migration still is the step of off-line migration;
If online migration, the step of then entering " service that stops to troop is applied in normally operation on the independent source virtual machine ";
If off-line migration, the then step of entering " utilizing virtual storage Migration tools " all data migtations to the purpose memory device of source memory device;
C) be applied in the process of launching on the virtual platform of destination server, this process if online migration comprise:
Be used to stop to troop service, be applied in the step of normal operation on the independent source virtual machine; This step comprises: find out all source virtual machines that operation is trooped and used in the cluster environment of above-mentioned source server; Confirm externally providing at present the source virtual machine of application service; Stop the service of trooping of other source virtual machines that application service is not provided, keep being applied on the independent source virtual machine moving;
Be used for forming the step of virtual backup tool at the virtual backup software of backup server deploy;
Be used to back up out the step of source virtual machine image file; This step comprises: through backup server to the video backup of level of the source virtual machine of the service that stops to troop;
The step that is used to build the purpose virtual platform and disposes storage;
Be used to recover the step of image file to the purpose virtual platform;
Be used for launching application the step that virtual platform stops to use in the source simultaneously at the purpose virtual platform;
This process comprises if off-line moves:
Utilize virtual storage Migration tools all data migtations to the purpose memory device of source memory device; At destination server deploy virtual platform, configure the mapping relations of destination server and purpose memory device, launch application at the purpose virtual platform then.
2. a kind of method of utilizing the migration of Intel Virtualization Technology implementation platform according to claim 1, it is characterized in that: the described step that backs up out the source virtual machine image file comprises following little step:
Confirm to adopt virtual backup tool;
Selection needs the source virtual machine image file of backup;
For described virtual backup tool is formulated backup policy;
Select the recovery target of image file.
3. utilize the method for Intel Virtualization Technology implementation platform migration according to described any one of claim 1～2; It is characterized in that: above-mentioned B) confirm in the process of migration classification; Through the require rank of application to business continuance is set in advance, requiring rank to divide the migration classification according to this then is online migration and off-line migration.
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