Making a cloud provenance-aware
TAPP'09 First workshop on on Theory and practice of provenance
Provenance as first class cloud data
ACM SIGOPS Operating Systems Review
Datacenter Investment Support System (DAISY)
HICSS '10 Proceedings of the 2010 43rd Hawaii International Conference on System Sciences
FAST'10 Proceedings of the 8th USENIX conference on File and storage technologies
Maximizing efficiency by trading storage for computation
HotCloud'09 Proceedings of the 2009 conference on Hot topics in cloud computing
Journal of Parallel and Distributed Computing
Cost-Optimal Outsourcing of Applications into the Clouds
CLOUDCOM '10 Proceedings of the 2010 IEEE Second International Conference on Cloud Computing Technology and Science
Opportunities and risks of software-as-a-service: Findings from a survey of IT executives
Decision Support Systems
Long-range Evaluation of Risk in the Migration to Cloud Storage
CEC '11 Proceedings of the 2011 IEEE 13th Conference on Commerce and Enterprise Computing
Role of Data Communications in Hybrid Cloud Costs
SEAA '11 Proceedings of the 2011 37th EUROMICRO Conference on Software Engineering and Advanced Applications
A data dependency based strategy for intermediate data storage in scientific cloud workflow systems
Concurrency and Computation: Practice & Experience
The Cloud Adoption Toolkit: supporting cloud adoption decisions in the enterprise
Software—Practice & Experience
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The volume of worldwide digital content has increased nine-fold within the last five years, and this immense growth is predicted to continue in the foreseeable future to reach 8 ZB by 2015. Traditionally, organizations proactively have built and managed their private storage facilities to cope with the growing demand for storage capacity. Recently, many organizations have instead welcomed the alternative of outsourcing their storage needs to the providers of public cloud storage services due to the proliferation of public cloud infrastructure offerings. The comparative cost-efficiency of these two alternatives depends on a number of factors, such as the prices of the public and private storage, the charging and the storage acquisition intervals, and the predictability of the demand for storage. In this paper, we study the relationship between the cost-efficiency of the private vs. public storage and the acquisition interval at which the organization re-assesses its storage needs and acquires additional private storage. The analysis in the paper suggests that for commonly encountered exponential growth of storage demand, shorter acquisition intervals increase the likelihood of less expensive private storage solutions compared with public cloud infrastructure. This phenomenon is also numerically illustrated in the paper using the storage needs encountered by a university back-up and archiving service as an example. Because the acquisition interval is determined by the organization's ability to foresee the growth of storage demand, via provisioning schedules of storage equipment providers, and internal practices of the organization, among other factors, organizations that own a private storage solution may want to control some of these factors to attain a shorter acquisition interval and thus make the private storage (more) cost-efficient.