Tiera: Towards flexible multi-tiered cloud storage instances

Ajaykrishna Raghavan, Abhishek Chandra, Jon B. Weissman

Research output: Chapter in Book/Report/Conference proceedingConference contribution

23 Scopus citations


Cloud providers offer an array of storage services that represent different points along the performance, cost, and durability spectrum. If an application desires the composite benefits of multiple storage tiers, then it must manage the complexity of different interfaces to these storage services and their diverse policies. We believe that it is possible to provide the benefits of customized tiered cloud storage to applications without compromising simplicity using a lightweight middleware. In this paper, we introduce Tiera, a middleware that enables the provision of multi-tiered cloud storage instances that are easy to specify, flexible, and enable a rich array of storage policies and desired metrics to be realized. Tiera's novelty lies in the first-class support for encapsulated tiered cloud storage, ease of programmability of data management policies, and support for runtime replacement and addition of policies and tiers. Tiera enables an application to realize a desired metric (e.g., low latency or low cost) by selecting different storage services that constitute a Tiera instance, and easily specifying a policy, using event and response pairs, to manage the life cycle of data stored in the instance. We illustrate the benefits of Tiera through a prototype implemented on the Amazon cloud. By deploying unmodified MySQL database engine and a TPC-W Web bookstore application on Tiera, we are able to improve their respective throughputs by 47% - 125% and 46% - 69%, over standard deployments. We further show the flexibility of Tiera in achieving different desired application metrics with minimal overhead.

Original languageEnglish (US)
Title of host publicationProceedings of the 15th International Middleware Conference, Middleware 2014
PublisherAssociation for Computing Machinery
Number of pages12
ISBN (Electronic)9781450327855
StatePublished - Dec 8 2014
Event15th International Middleware Conference, Middleware 2014 - Bordeaux, France
Duration: Dec 8 2014Dec 12 2014

Publication series

NameProceedings of the 15th International Middleware Conference, Middleware 2014


Other15th International Middleware Conference, Middleware 2014

Bibliographical note

Publisher Copyright:
Copyright © 2014 ACM.


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