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The use of vOSDs permits the service provider, i.e., the\n vOSD storage domain<\/jats:italic>\n , to offer to guest virtual machines new methods for resource management and consolidation Methods demonstrated in this paper include improved support for access control and for heterogeneity of storage devices. A prototype PVFS-based O2S2 implementation demonstrates that its enhanced services can be provided at low cost, enabled in part by the efficient utilization of otherwise idle storage domain resources.\n <\/jats:p>","DOI":"10.1145\/1453775.1453781","type":"journal-article","created":{"date-parts":[[2008,10,22]],"date-time":"2008-10-22T12:25:40Z","timestamp":1224678340000},"page":"24-29","update-policy":"http:\/\/dx.doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":4,"title":["O2S2"],"prefix":"10.1145","volume":"42","author":[{"given":"Himanshu","family":"Raj","sequence":"first","affiliation":[{"name":"Georgia Tech, Atlanta, GA"}]},{"given":"Karsten","family":"Schwan","sequence":"additional","affiliation":[{"name":"Georgia Tech, Atlanta, GA"}]}],"member":"320","published-online":{"date-parts":[[2008,10]]},"reference":[{"key":"e_1_2_1_1_1","unstructured":"Lustre: A Scalable High-Performance File System. http:\/\/www.lustre.org\/docs\/whitepaper.pdf accessed May 2007. 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