Design tradeoffs for SSD performance

  • Authors:
  • Nitin Agrawal;Vijayan Prabhakaran;Ted Wobber;John D. Davis;Mark Manasse;Rina Panigrahy

  • Affiliations:
  • University of Wisconsin-Madison;Microsoft Research, Silicon Valley;Microsoft Research, Silicon Valley;Microsoft Research, Silicon Valley;Microsoft Research, Silicon Valley;Microsoft Research, Silicon Valley

  • Venue:
  • ATC'08 USENIX 2008 Annual Technical Conference on Annual Technical Conference
  • Year:
  • 2008

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Abstract

Solid-state disks (SSDs) have the potential to revolutionize the storage system landscape. However, there is little published work about their internal organization or the design choices that SSD manufacturers face in pursuit of optimal performance. This paper presents a taxonomy of such design choices and analyzes the likely performance of various configurations using a trace-driven simulator and workload traces extracted from real systems. We find that SSD performance and lifetime is highly workload-sensitive, and that complex systems problems that normally appear higher in the storage stack, or even in distributed systems, are relevant to device firmware.