CodePlugin: Plugging Deduplication into Erasure Coding for Cloud Storage

  title={CodePlugin: Plugging Deduplication into Erasure Coding for Cloud Storage},
  author={Mengbai Xiao and Mohammed Anowarul Hassan and Weijun Xiao and Qi Wei and Songqing Chen},
Cloud storage systems play a key role in many cloud services. To tolerate multiple simultaneous disk failures and reduce the storage overhead, today cloud storage systems often employ erasure coding schemes. To simplify implementations, existing systems, such as Microsoft Azure and EMC Atmos, only support file appending operations. However, this feature leads to a nontrivial and increasing portion of redundant data on cloud storage systems. To reduce the data redundancy due to file updates by… CONTINUE READING
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