Towards a QoS-aware Virtualised Storage System

Provided by: Imperial College London
Topic: Storage
Format: PDF
Every organization depends critically on reliable high-performance storage. Driven by the high costs of maintaining and managing multiple local storage systems, there is a trend towards virtualized multi-tier storage infrastructures. The main limitation of such centralized solutions is their inability to guarantee application-level Quality of Service (QoS) without extensive and ongoing human intervention. This intervention is necessary since delivered QoS can vary extensively both across and within storage tiers, and also depends on the access profile of the data.

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