Nested QoS: Providing flexible SLAs in shared storage systems

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dc.contributor.advisorVarman, Peter J.en_US
dc.creatorWang, Huien_US
dc.date.accessioned2013-03-08T00:39:49Zen_US
dc.date.available2013-03-08T00:39:49Zen_US
dc.date.issued2012en_US
dc.description.abstractThe increasing popularity of storage and server consolidation introduces new challenges for resource management, capacity provisioning, and application performance guaranteeing. In addition, the bursty nature of storage workloads results in a large gap between the peak and the average capacity required to meet response time bounds, leading to low overall server utilization and high cost. This situation is driving the development of elastic QoS models that allow clients greater flexibility in adopting SLAs tailored to their workload characteristics and performance requirements, while allowing the service provider opportunities to optimize provisioning and scheduling decisions. This thesis presents a novel service model, called the Nested QoS model, for multiplexing concurrent bursty workloads in shared storage systems. The solution employs two strategies together: systematically classifying requests with a graduated QoS and flexibly scheduling the classified portions. The results show that the Nested QoS model provides (i) performance isolation and strong performance guarantees for both well-behaved and misbehaving workloads; (2) a flexible and auditable elastic SLA definition; and (3) improved server utilization.en_US
dc.format.extent81 p.en_US
dc.format.mimetypeapplication/pdfen_US
dc.identifier.callnoTHESIS E.E. 2012 WANGen_US
dc.identifier.citationWang, Hui. "Nested QoS: Providing flexible SLAs in shared storage systems." (2012) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/70483">https://hdl.handle.net/1911/70483</a>.en_US
dc.identifier.digitalWangHen_US
dc.identifier.urihttps://hdl.handle.net/1911/70483en_US
dc.language.isoengen_US
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.en_US
dc.subjectApplied sciencesen_US
dc.subjectComputer engineeringen_US
dc.subjectElectrical engineeringen_US
dc.subjectComputer scienceen_US
dc.titleNested QoS: Providing flexible SLAs in shared storage systemsen_US
dc.typeThesisen_US
dc.type.materialTexten_US
thesis.degree.departmentElectrical Engineeringen_US
thesis.degree.disciplineEngineeringen_US
thesis.degree.grantorRice Universityen_US
thesis.degree.levelMastersen_US
thesis.degree.nameMaster of Scienceen_US
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