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Towards Deadline Guaranteed Cloud Storage Services, Guoxin Liu, Haiying Shen, Lei Yu
Towards Deadline Guaranteed Cloud Storage Services, Guoxin Liu, Haiying Shen, Lei Yu
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More and more organizations move their data and workload to commercial cloud storage systems. However, the multiplexing and sharing of the resources in a cloud storage system present unpredictable data access latency to tenants, which may make online data-intensive applications unable to satisfy their deadline requirements. Thus, it is important for cloud storage systems to provide deadline guaranteed services. In this paper, to meet a current form of service level objective (SLO) that constrains the percentage of each tenant's data access requests failing to meet its required deadline below a given threshold, we build a mathematical model to derive the …