Storage architecture with integrity, redundancy and encryption

  • Authors:

  • Henning Klein;Jorg Keller

  • Affiliations:

  • Fujitsu Siemens Computers GmbH, Buergermeister-Ulrich-Strasse 100, 86199 Augsburg, Germany;FernUniversität in Hagen, Dept. of Mathematics and Computer Science, 58084, Germany

  • Venue:
  • IPDPS '09 Proceedings of the 2009 IEEE International Symposium on Parallel&Distributed Processing
  • Year:
  • 2009

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Abstract

We propose a storage system that treats confidentiality, integrity and availability of data in a unified manner. Extending RAID6, it allows for failures of multiple disks, encrypts data on disk, and stores checksums to detect faulty data without disks failing, which occurs e.g. in solid state disks due to wear out of cells. By handling encryption and integrity check together, the probability of undetected faulty data is reduced further. We provide an implementation, i.e. a driver, which encapsulates all these features and uses parallel algorithms exploiting multicore processor performance to match the bandwidth available from multiple disks. We present performance figures of our experiments.