Flash or SSD: Why and When to Use IBM FlashSystem

An IBM Redpaper publication

Published 18 June 2013, updated 26 June 2013

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IBM Form #: REDP-5020-00
(18 pages)

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Authors: Megan Gilge, Karen Orlando


This IBM® Redpaper™ publication explains how to select an IBM FlashSystem™ or solid-state drive (SSD) solution. It describes why and when to use FlashSystem products, and reviews total cost of ownership (TCO), economics, performance, scalability, power, and cooling. Read this guide for information about selecting the correct solution (SSD or flash technology).

This paper also reviews examples of FlashSystem storage bundled with solutions such as hybrid arrays and IBM System Storage® SAN Volume Controller (SVC, a member of the IBM Storwize® family). Furthermore, it compares FlashSystem storage to other storage such as PCIe Express (PCIe) products and hard disk drives (HDDs).

Table of contents

  • Overview
  • Business value of FlashSystem products
  • Storage technologies, latency, and performance
  • The difference between SSD and FlashSystem storage
  • Top reasons to use IBM FlashSystem storage
  • SVC products with IBM FlashSystem storage
  • Server-Side flash memory and PCIe cards
  • SSD solutions
  • HDD solutions
  • Hybrid solutions
  • System x or PureFlex Systems
  • IBM Intelligent Cluster
  • Use cases
  • Supported platforms
  • Related information

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