By a News Reporter-Staff News Editor at Computer Weekly News -- Fresh data on Computer Programming are presented in a new report. According to news reporting from Hefei, People's Republic of China, by VerticalNews journalists, research stated, "Virtual machine (VM) live storage migration techniques significantly increase the mobility and manageability of virtual machines in the era of cloud computing. On the other hand, as solid state drives (SSDs) become increasingly popular in data centers, VM live storage migration will inevitably encounter heterogeneous storage environments."
The news correspondents obtained a quote from the research from the National University of Defense Technology, "Nevertheless, conventional migration mechanisms do not consider the speed discrepancy and SSD's wear-out issue, which not only causes significant performance degradation but also shortens SSD's lifetime. This paper, for the first time, addresses the efficiency of VM live storage migration in heterogeneous storage environments from a multi-dimensional perspective, i.e., user experience, device wearing, and manageability. We derive a flexible metric (migration cost), which captures various design preference. Based on that, we propose and prototype three new storage migration strategies, namely: 1) Low Redundancy (LR), which generates the least amount of redundant writes; 2) Source-based Low Redundancy (SLR), which keeps the balance between IO performance and write redundancy; and 3) Asynchronous IO Mirroring, which seeks the highest IO performance. The evaluation of our prototyped system shows that our techniques outperform existing live storage migration by a significant margin."
According to the news reporters, the research concluded: "Furthermore, by adaptively mixing our proposed schemes, the cost of massive VM live storage migration can be even lower than that of only using the best of individual mechanism."
For more information on this research see: Optimizing Virtual Machine Live Storage Migration in Heterogeneous Storage Environment. ACM Sigplan Notices, 2013;48(7):73-84. ACM Sigplan Notices can be contacted at: Assoc Computing Machinery, 2 Penn Plaza, Ste 701, New York, NY 10121-0701, USA.
Our news journalists report that additional information may be obtained by contacting R.J. Zhou, Natl Univ Def Technol, State Key Lab High Performance Comp, Hefei, People's Republic of China. Additional authors for this research include F. Liu, C. Li and T. Li.
Keywords for this news article include: Asia, Hefei, Computer Programming, People's Republic of China
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