SDF: software-defined flash for web-scale internet storage systems

@article{Ouyang2014SDFSF,
  title={SDF: software-defined flash for web-scale internet storage systems},
  author={Jian Ouyang and Shiding Lin and J. Song and Zhenyu Hou and Yong Wang and Yuanzheng Wang},
  journal={Proceedings of the 19th international conference on Architectural support for programming languages and operating systems},
  year={2014}
}
  • Jian Ouyang, Shiding Lin, +3 authors Yuanzheng Wang
  • Published 2014
  • Computer Science
  • Proceedings of the 19th international conference on Architectural support for programming languages and operating systems
  • In the last several years hundreds of thousands of SSDs have been deployed in the data centers of Baidu, China's largest Internet search company. Currently only 40\% or less of the raw bandwidth of the flash memory in the SSDs is delivered by the storage system to the applications. Moreover, because of space over-provisioning in the SSD to accommodate non-sequential or random writes, and additionally, parity coding across flash channels, typically only 50-70\% of the raw capacity of a commodity… CONTINUE READING
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