DuraCache: A durable SSD cache using MLC NAND flash

  title={DuraCache: A durable SSD cache using MLC NAND flash},
  author={Ren-Shuo Liu and Chia-Lin Yang and Cheng-Hsuan Li and Geng-You Chen},
  journal={2013 50th ACM/EDAC/IEEE Design Automation Conference (DAC)},
Adopting SSDs as caches for HDD arrays has gained popularity in datacenters because SSDs are superior in handling random reads that HDDs cannot efficiently deal with. Two types of flash memory cells are available for building SSD caches, single-level cells (SLC) and multi-level cells (MLC). MLC is more appealing than SLC because it can achieve higher cache capacity at the same cost. However, we see a critical issue for SSD caches to adopt MLC NAND flash: the endurance of modern MLC NAND flash… CONTINUE READING
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