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Full-Text Articles in Engineering
Survivable Virtual Infrastructure Mapping In Virtualized Data Centers, Jielong Xu, Jian Tang, Kevin A. Kwiat, Weiyi Zhang, Guoliang Xue
Survivable Virtual Infrastructure Mapping In Virtualized Data Centers, Jielong Xu, Jian Tang, Kevin A. Kwiat, Weiyi Zhang, Guoliang Xue
Electrical Engineering and Computer Science - All Scholarship
In a virtualized data center, survivability can be enhanced by creating redundant VMs as backup for VMs such that after VM or server failures, affected services can be quickly switched over to backup VMs. To enable flexible and efficient resource management, we propose to use a service-aware approach in which multiple correlated Virtual Machines (VMs) and their backups are grouped together to form a Survivable Virtual Infrastructure (SVI) for a service or a tenant. A fundamental problem in such a system is to determine how to map each SVI to a physical data center network such that operational costs are …
Improving Backup And Restore Performance For Deduplication-Based Cloud Backup Services, Stephen Mkandawire
Improving Backup And Restore Performance For Deduplication-Based Cloud Backup Services, Stephen Mkandawire
Department of Computer Science and Engineering: Dissertations, Theses, and Student Research
The benefits provided by cloud computing and the space savings offered by data deduplication make it attractive to host data storage services like backup in the cloud. Data deduplication relies on comparing fingerprints of data chunks, and store them in the chunk index, to identify and remove redundant data, with an ultimate goal of saving storage space and network bandwidth.
However, the chunk index presents a bottleneck to the throughput of the backup operation. While several solutions to address deduplication throughput have been proposed, the chunk index is still a centralized resource and limits the scalability of both storage capacity …