Copysets: Reducing the Frequency of Data Loss in Cloud Storage

  title={Copysets: Reducing the Frequency of Data Loss in Cloud Storage},
  author={Asaf Cidon and Stephen M. Rumble and Ryan Stutsman and Sachin Katti and John K. Ousterhout and Mendel Rosenblum},
  booktitle={USENIX Annual Technical Conference},
Random replication is widely used in data center storage systems to prevent data loss. However, random replication is almost guaranteed to lose data in the common scenario of simultaneous node failures due to cluster-wide power outages. Due to the high fixed cost of each incident of data loss, many data center operators prefer to minimize the frequency of such events at the expense of losing more data in each event. We present Copyset Replication, a novel generalpurpose replication technique… CONTINUE READING
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