Migrating Enterprise Storage to SSDs: Analysis of Tradeoffs

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Executive Summary

Off late, flash-based Solid-State Drives (SSDs) have become standard options for laptop and desktop storage, but their impact on enterprises has not been studied. Provisioning enterprise storage is challenging. It requires optimizing for the performance, capacity, power and reliability needs of the expected workload, all while minimizing financial costs. This paper, through analysis of a number of enterprise workloads, provides insights as to when, and how, SSDs should be incorporated into the enterprise storage hierarchy. The paper describes an automated tool that, given device models and a block-level trace of a workload, determines the least-cost storage configuration. It analyzes the factors that drive the configuration choice, and computes the price points at which different SSD-based solutions will become cost-effective.

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