Orthogonal Striping and Mirroring in Distributed RAID for I/O-Centric Cluster Computing
IEEE Transactions on Parallel and Distributed Systems
Distributed RAID - A New Multiple Copy Algorithm
Proceedings of the Sixth International Conference on Data Engineering
Workload Characterization of Input/Output Intensive Parallel Applications
Proceedings of the 9th International Conference on Computer Performance Evaluation: Modelling Techniques and Tools
SHARPE 2002: Symbolic Hierarchical Automated Reliability and Performance Evaluator
DSN '02 Proceedings of the 2002 International Conference on Dependable Systems and Networks
Reliability Analysis of Clustered Computing Systems
ISSRE '98 Proceedings of the The Ninth International Symposium on Software Reliability Engineering
A Generic Availability Model for Clustered Computing Systems
PRDC '01 Proceedings of the 2001 Pacific Rim International Symposium on Dependable Computing
PVFS: a parallel file system for linux clusters
ALS'00 Proceedings of the 4th annual Linux Showcase & Conference - Volume 4
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Modern cluster file systems such as PVFS that stripe files across multiple nodes have shown to provide high aggregate I/O bandwidth but are prone to data loss since the failure of a single disk or server affects the whole file system. To address this problem a number of distributed data redundancy schemes have been proposed that represent different trade-offs between performance, storage efficiency and level of fault tolerance. However the actual level of dependability of an enhanced striped file system is determined by more than just the redundancy scheme adopted, depending in general on other factors such as the type of fault detection mechanism, the nature and the speed of the recovery. In this paper we address the question of how to assess the dependability of CSAR, a version of PVFS augmented with a RAID5 distributed redundancy scheme we described in a previous work.