Design Tradeoffs for SSD Reliability

Design Tradeoffs for SSD Reliability

USENIX via YouTube Direct link

Error model: 3D TLC (2018)

8 of 16

8 of 16

Error model: 3D TLC (2018)

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Design Tradeoffs for SSD Reliability

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  1. 1 Intro
  2. 2 High-level objectives
  3. 3 How bad is it?
  4. 4 SSD's reliability issue
  5. 5 Flash memory errors
  6. 6 Flash memory error modeling RBER (cycles, time, reads)
  7. 7 Error model: 3x-nm MLC (2011)
  8. 8 Error model: 3D TLC (2018)
  9. 9 Error correction code
  10. 10 Evaluation: data re-read
  11. 11 Why is data re-read bad?
  12. 12 Evaluation: redundancy
  13. 13 Observations
  14. 14 Holistic reliability management . Cold data
  15. 15 The bright side of flash memory
  16. 16 The dark side of flash memory

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