Disk scrubbing in large archival storage systems

  title={Disk scrubbing in large archival storage systems},
  author={Thomas J. E. Schwarz and Qin Xin and Ethan L. Miller and Darrell D. E. Long and Andy Hospodor and Spencer W. Ng},
  journal={The IEEE Computer Society's 12th Annual International Symposium on Modeling, Analysis, and Simulation of Computer and Telecommunications Systems, 2004. (MASCOTS 2004). Proceedings.},
Large archival storage systems experience long periods of idleness broken up by rare data accesses. In such systems, disks may remain powered off for long periods of time. These systems can lose data for a variety of reasons, including failures at both the device level and the block level. To deal with these failures, we must detect them early enough to be able to use the redundancy built into the storage system. We propose a process called "disk scrubbing" in a system in which drives are… CONTINUE READING
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Disk backup through algebraic signatures in scalable and distributed data structures

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