Victim Disk First: An Asymmetric Cache to Boost the Performance of Disk Arrays under Faulty Conditions

@inproceedings{Wan2011VictimDF,
  title={Victim Disk First: An Asymmetric Cache to Boost the Performance of Disk Arrays under Faulty Conditions},
  author={Shenggang Wan and Qiang Cao and Jianzhong Huang and Siyi Li and Xin Li and Shenghui Zhan and Li Yu and Changsheng Xie and Xubin He},
  booktitle={USENIX Annual Technical Conference},
  year={2011}
}
The buffer cache plays an essential role in smoothing the gap between the upper-level computational components and the lower-level storage devices. A good buffer cache management scheme should be beneficial to not only the computational components, but also to the storage components by reducing disk I/Os. Existing cache replacement algorithms are well optimized for disks in normal mode, but inefficient under faulty scenarios, such as a parity-based disk array with faulty disk(s). To address… CONTINUE READING
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