Towards Optimal Secure Distributed Storage Systems with

Feb 19, 2014 - As an alternative, erasure codes (for instance, Reed-Solomon codes) have been used by Facebook, OceanStore, RAID-6. [2] and others to i...

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The reliability of erasure-coded distributed storage systems, as measured by the mean time to data loss (MTTDL), depends on the repair bandwidth of the code. ..... A. Chen's Model and Angus' model. Both Chen's model and Angus' model address systems w

Aug 6, 2013 - regenerate the data on the failed node. This metric is highly relevant as a large fraction of network bandwidth in DSS can be occupied by the data being transferred during the repair process. Thus, it is desirable to have coding schemes

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[email protected]). A. S. Rawat and S. Vishwanath are with the Department of Electrical and Computer Engineering, The University of Texas at Austin, ...

Jun 1, 2017 - from the other two nodes, which will violate the security requirement. However, any node failure can be securely repaired by the two-round scheme shown above. To see that the scheme is secure, note that after the repair process Node 1 h

Jun 1, 2017 - over Fq to n shares c = (c1, ··· ,cn) over Fq, such that 1) m can be decoded from any subset of n − r shares; 2) any subset of z shares do not ...... [5] W. Huang and J. Bruck, “Secure RAID schemes for distributed storage,” in

May 12, 2014 - key technique for reducing the bandwidth is to project data blocks onto a small random vector. This checking scheme is inherently different ..... 1In particular, the 2 random padded elements is to control the number of equations in the

Aug 10, 2012 - Application scenarios include large data centers such as Total Recall [4], OceanStore [12] ... One of the challenges for DSS is the repair problem: If a node storing a coded piece fails or leaves the ..... are the systematic and parity

May 15, 2013 - of random variables induced by concatenation scheme is shown. These equalities of joint entropies are new tools to simplify the linear programming bound and to obtain stronger converse results for exact repair distributed storage syste

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Oct 7, 2017 - Abstract. We introduce the Fixed Cluster Repair System (FCRS) as a novel architecture for Distributed Storage Systems. (DSS) that achieves a small repair bandwidth while guaranteeing a high availability. Specifically we partition the se

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May 4, 2010 - a malicious or compromised server in the storage network. This second threat is much more eminent when the system uses network coding to maintain the redundancy of the encoded system as proposed recently [4]. To illustrate this consider