February 29, 2016

SSD Reliability in the Real World: Google's Experience

Using data from millions of drive days in Google datacenters, a new paper offers production lifecycle data on SSD reliability. Surprise! SSDs fail differently than disks - and in a dangerous way. Here's what you need to know.

SSDs are a new phenomenon in the datacenter. We have theories about how they should perform, but until now, little data. That's just changed.

The FAST 2016 paper Flash Reliability in Production: The Expected and the Unexpected, (the paper is not available online until Friday) by Professor Bianca Schroeder of the University of Toronto, and Raghav Lagisetty and Arif Merchant of Google, covers:

 

  • Millions of drive days over 6 years
  • 10 different drive models
  • 3 different flash types: MLC, eMLC and SLC
  • Enterprise and consumer drives

 

Read more at ZDNet

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