Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A Method for Online Migration of Virtual Machines across Virtualized Data Centers

A data center and virtual machine technology, applied in the field of resource management of virtualized data centers, can solve the problems of long migration time and downtime of virtual machines, incomplete recovery, large data volume, etc., and achieve good use value and market prospects , improve migration time and downtime, and reduce migration overhead

Inactive Publication Date: 2015-09-16
SHANGHAI YINGLIAN SOMATOSENSORY INTELLIGENT TECH CO LTD
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are the following problems: when a virtual machine is migrated to a service node that is far away from the virtualized data center where the file system is located (compared to the local file system), the average I / O access latency and maximum access latency of the virtual machine increase. It is more than twice the original size, and the CPU utilization rate is also reduced by 30%. After the virtual machine is migrated, it cannot fully restore the original execution efficiency.
[0008] 2) Virtual machine migration in a cross-virtualized data center environment must send all status information of the virtual machine (including: CPU, memory, disk, etc.). In order to support the different needs of various users, different disk migrations are used in the prior art Strategy, the disk space of the virtual machine is large (more than 10G), and the dirty sectors generated during the state consistency process of the additional disk and the dirty page information generated by memory iteration make the amount of data sent during the entire migration process too large and consume too much network Bandwidth resources, and the virtual machine migration time and downtime are too long

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A Method for Online Migration of Virtual Machines across Virtualized Data Centers
  • A Method for Online Migration of Virtual Machines across Virtualized Data Centers
  • A Method for Online Migration of Virtual Machines across Virtualized Data Centers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] figure 1 It is a flow chart of the method for online migration of virtual machines across virtualized data centers according to the present invention. Such as figure 1 As shown, the method includes:

[0042] Step 1, deploy multiple virtualized data centers on the wide area network, wherein the service nodes of each virtualized data center run virtual machines, and the storage nodes of each virtualized data center store virtual machine images;

[0043] Step 2, connect multiple virtualized data centers through a virtual private network VPN of a two-layer bridge mode (tap);

[0044] Step 3, in the virtual machine I / O driver process on the source node, monitor the dirty block (Block) that the migrated virtual machine writes to the disk each time, and create a migration thread (S_thread) for the virtual machine I / O driver process ), the migration thread performs pre-migration of user private data files and migration of dirty block monitoring records, wherein the dirty blo...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a virtual machine on-line transfer method across virtualization data centers. The method includes that step 1, a plurality of virtualization data centers are deployed on a wide area network (WAN), and each virtual machine mirror file is divided into a template and user private data files, step 2, the virtualization data centers are connected through a virtual private network (VPN) of a two-tier bridge pattern, step 3, dirty blocks written into a disk every time are monitored in a virtual machine input / output (I / O) drive course on a source node, a transfer thread is created for the drive course, and the transfer thread pre-transfers the user private data files and transfers monitoring records of the dirty blocks, step 4, a transfer course of a virtual machine on the source node controls the pre-transfer and the transfer of the monitoring record, and step 5, the execution sequence of a destination node recovery course of the virtual machine is changed, a recovery thread is created for the recovery course, and the recovery thread receives information about the pre-transfer and the transfer of the monitoring records and writes the information into a storage node. The virtual machine on-line transfer method across the virtualization data centers can achieve dynamic mapping of virtual machines and resources among the plurality of virtualization data centers.

Description

technical field [0001] The invention relates to the field of resource management related to a virtualized data center, in particular to an online migration method of a virtual machine across a virtualized data center. Background technique [0002] Owners of traditional IT resources provide services to the outside world in the form of data centers, which are composed of multiple data centers distributed in various places with a large number of computing or storage resources, and different users share the resource pool of the data center. In the cloud computing mode, the user's application is complex and diverse, and the location of demand generation is different. Different users have different requirements for the service quality of the application. Therefore, IT companies are faced with the difficulty of managing multiple data centers across regions at the same time, so the traditional data center management model lacks a dynamic resource adjustment method among multiple dat...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/08H04L12/46G06F9/455
Inventor 杨鹏斐杨坤宋莹赵霞孙毓忠
Owner SHANGHAI YINGLIAN SOMATOSENSORY INTELLIGENT TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products