The content and access dynamics of a busy Web site: findings and implications
Proceedings of the conference on Applications, Technologies, Architectures, and Protocols for Computer Communication
Characterizing locality, evolution, and life span of accesses in enterprise media server workloads
NOSSDAV '02 Proceedings of the 12th international workshop on Network and operating systems support for digital audio and video
Measurement, modeling, and analysis of a peer-to-peer file-sharing workload
SOSP '03 Proceedings of the nineteenth ACM symposium on Operating systems principles
Energy conservation techniques for disk array-based servers
Proceedings of the 18th annual international conference on Supercomputing
SpinThrift: saving energy in viral workloads
COMSNETS'10 Proceedings of the 2nd international conference on COMmunication systems and NETworks
SpinThrift: saving energy in viral workloads
Proceedings of the first ACM SIGCOMM workshop on Green networking
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Storage systems and data centers are growing rapidly and costing more, with higher energy bills. Users want dependable access to a wide variety of diverse content, but providers want to lower costs. Many studies have looked at the tradeoffs between cost and dependability, but few have looked carefully at how content request diversity changes this relationship. In this paper, we model a disk array and develop an analytical framework to study the relationships between dependability, access diversity, and low cost. We show how access diversity changes the relationship between cost and dependability and that all three are in tension with one another. It is possible to improve any two together, but not all three simultaneously.