Device, system and method for online storage migration of virtual machine system

A virtual machine and source storage technology, applied in the direction of program control device, software simulation/interpretation/simulation, input/output to record carrier, etc., can solve problems such as limited time, increased migration time, and shortage of physical host memory resources

Active Publication Date: 2014-06-25
CHINA TELECOM CORP LTD
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AI Technical Summary

Problems solved by technology

However, in order to meet the basic operating requirements of the virtual machine system on the physical host, the resources available for migration on the physical host are very limited, resulting in a shortage of memory resources on the physical host, which also affects the performance of storage migration and prolongs the migration time.
[0005] In addition, the physical hos

Method used

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  • Device, system and method for online storage migration of virtual machine system
  • Device, system and method for online storage migration of virtual machine system
  • Device, system and method for online storage migration of virtual machine system

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Embodiment 1

[0126] According to a specific example of the device embodiment of the present invention, the source image source control unit 501 is also used to create the address mapping table of the file when creating the file, and the address mapping table includes the start address and end address of the data of the file in the storage address space and address length;

[0127] The source migration agent unit is specifically used to control the first storage controller, read the data of the file from the storage address space of the source storage device according to the start address, the end address and the address length, and combine the data of the file with the address mapping table sent to the second storage controller;

[0128] The target migration agent unit is specifically configured to control the second storage controller to save the received file data in the storage address space of the target storage device according to the file address mapping table.

[0129]According to ...

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Abstract

The invention discloses a device, a system and a method for online storage migration of a virtual machine system. The method includes: copying files by controlling a first storage controller of a source storage device and a second storage controller of a target storage device, copying a master image file to the target storage device, recognizing whether the size of a slave image file accords with the terminate threshold condition or not, if yes, responding to the terminate threshold condition to stop the virtual machine system and migrating to the target storage device, and integrating the master image file and the slave image file to form a new system file. By using the storage controllers for realizing a migration mechanism of mass data copying operations, occupancy and dependency on resources of a physical mainframe by the storage migration method are avoided, influences on performances of the physical mainframe and the virtual machine system on the physical mainframe are weakened, and flexibility, rapidness and high efficiency in online storage migration of the virtual machine system are realized.

Description

technical field [0001] The invention relates to the field of computer applications, in particular to a method, system and device for online storage migration of a virtual machine system. Background technique [0002] Online migration of virtual machine systems is an indispensable tool for most virtual machine system managers, and is widely used in fault tolerance, disaster recovery and load balancing of data centers. Currently, online migration of virtual machine systems mainly includes computing migration, storage migration, and system-wide migration, that is, storage and computing are migrated at the same time. The online storage migration of the virtual machine system refers to migrating the disk files of the virtual machine system from one data storage device to another data storage device when the virtual machine system is running, and performing maintenance and reconfiguration. [0003] A method for realizing online storage migration of a virtual machine system is to ...

Claims

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Application Information

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IPC IPC(8): G06F3/06G06F9/455
Inventor 樊勇兵赖培源于玉海区洪辉周骏贾嫚马卫民张文强肖慧吴跃华刘式颖何晓武刘艺管华
Owner CHINA TELECOM CORP LTD
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