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Large cloud service providers often replicate data to multiple geographically distributed datacenters for availability and service quality purposes. The enormous amount of data needed to be shuffled among datacenters call for efficient schemes to maximally exploit the capacity of the inter-datacenter networks. In this paper, we propose Calantha, a new rate allocation scheme that improves the reliability...
Virtual machine (VM) live migration provides spatial flexibility by rearranging VM placement (i.e., VM shuffle) in several scenarios, including server consolidation, power consumption saving, fault tolerance, QoS management and network congestion resolving. However, VM live migration would consume scarce bandwidth and even cause network congestion. Since the bandwidth used by VM migration is usually...
In order to provide low latency, pay-as-you-go infrastructure, Cloud service provider has built a large number of geo-distributed data centers. Nowadays, energy cost has become increasingly important fraction of data center operating cost. Researchers' attentions are attracted to propose many methods to reduce the electricity cost for data centers. However, another significant operating cost, Internet...
The key infrastructure of Cloud Computing is data center which is shared by many tenants. Each tenant's application competes for acquiring more network bandwidth in order to maximize its utility. However, this may cause interference among these diverse applications. Malicious competition not only degrades its performance, but also makes the overall performance of the data center poor and ineffective...
Cloud infrastructure providers (CIPs) usually build a large number of geo-distributed data centers to cater to the recent proliferation of Cloud Computing. The CIPs commonly use multiple internet service providers (ISPs) to interconnect their geo-distributed data centers. Diurnal patterns and leftover bandwidth were effectively exploited by past studies to improve bandwidth utilization and minimize...
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