with ESX setup and monitoring and to Emil Sit for providing insightful feedback on the paper. Finally, we would like to thank Michael Mitzenmacher for his assistance with min-wise hashing, our OSDI shepherd Fred Douglis for his insightful feedback and support, Rick Farrow at ;login; and the anonymous OSDI ’08 reviewers for their valuable comments. This work was supported in part by NSF CSR-PDOS Grant No. CNS-0615392, the UCSD Center for Networked Systems (CNS), and UC Discovery Grant 07–10237. Vrable was supported in part by an NSF Graduate Research Fellowship.

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Diwaker Gupta (diwaker@asterdata. com), university of california, san diego, currently at aster data.

Sangmin Lee ([e-mail]. edu), university of california, san diego, currently at ut austin.

Michael Vrable ( [e-mail]), university of california, san diego.

Stefan Savage ( [e-mail]), university of california, san diego.

© 2010 acM 0001-0782/10/1000 $10.00

Alex C. Snoeren ([e-mail]. edu), university of california, san diego.

George Varghese ([e-mail]. edu), university of california, san diego.

Geoffrey M. Voelker (voelker @ cs.ucsd.edu), university of california, san diego.

Amin Vahdat ( [e-mail]), university of california, san diego.

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