Reliability and performance of RAIDs

T.J.E. Schwarz, W.A. Burkhard
1995 IEEE transactions on magnetics  
We define and analyze the ACATS declustering scheme for use with the classic Level 5 as well as MDS RAIDs. ACATS provides a paradigm for distributed sparing and checking as well. Using Markov models we calculate the reliability of classic Level 5 as well as MDS RAIDs both with and without ACATS. Our results demonstrate, for fixed hardware configurations, tradeoffs between performance and reliability within these RAID organizations. Our analysis assumes a transaction oriented environment.
doi:10.1109/20.364801 fatcat:h3g2ovubivcnhorjg5kpka36ue