云環(huán)境中虛擬機遷移策略的研究
[Abstract]:To ensure the service level agreement (SLA) and the efficient use of energy are two important issues in cloud computing. Virtualization technology is the key technology in cloud computing resource management, among which, virtual machine migration technology and strategy are very interesting issues, this paper takes the optimization of virtual machine migration strategy as the primary goal of the research. Aiming at how to reduce the energy consumption of large scale cloud data center and ensure the service level protocol (SLA) of users to a certain extent, this paper proposes an optimization algorithm LBES (Load Balancing and Energy Saving). Based on virtual machine migration. The algorithm considers various resource loads and cluster conflicts, and proposes a trigger strategy based on prediction model to determine the migration opportunity of virtual machine. According to which part of virtual machines are selected for migration in physical machines to be migrated, a multi-resource constrained selection strategy is proposed, and the problem of selecting target nodes is solved by using the location strategy based on probability model. The LEBS algorithm is implemented and analyzed in the virtual cloud data center simulated in the cloud simulator. The experimental results show that the performance of LEBS algorithm is better than that of other algorithms in ensuring the service level of users and saving energy consumption under the same threshold setting condition.
【學(xué)位授予單位】:中南大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2012
【分類號】:TP302
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