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Low-Profile Source-side Deduplication for Virtual Machine Backup
Daniel Agun and Tao Yang, University of California, Santa Barbara; Wei Zhang, Pure Storage Inc.
This paper presents a source-side backup scheme with low-resource usage through collaborative deduplication and approximated lazy deletion when frequent virtual machine snapshot backup is required in a large-scale cloud cluster. The key ideas are to orchestrate multiround duplicate detection batches among machines in a partitioned asynchronous manner and remove most unreferenced content chunks with approximated snapshot deletion. This paper discusses the challenges, main design and strategies, and evaluation results.
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