Publications

Research and Theoretical Topics

    A Modern Look at Reliability, Availability, and Scalability

    The Connection, by Dr. Bruce Holenstein, Paul J. Holenstein, and Dr. Bill Highleyman
    Computer manufacturers often stress performance and availability in their marketing literature. Yet, reliability (R), availability (A), and scalability (S) are the three pillars that support mission-critical applications...

    MTTF formula

    Improving Availability via Staggered Systems

    The Connection, by Dr. Bruce D. Holenstein, Dr. Bill Highleyman, and Paul J. Holenstein
    The reliability of a redundant system is optimized by minimizing the probability that both systems will fail...

    Stock photo of three pillars holding a building

    Improving Reliability via Redundant Processing

    The Connection, by Dr. Bruce D. Holenstein, Dr. Bill Highleyman, and Paul J. Holenstein
    One of the three pillars of mission-critical systems is data reliability – a significant concern in datacenters...

    Scale-up is Dead, Long Live Scale-out!

    The Connection, by Keith B. Evans and Paul J. Holenstein
    Keeping up with user demand is a significant challenge for IT departments. The traditional scale-up approach suffers from significant limitations and cost issues that prevent...