Publications

Research and Theoretical Topics

Elephant with men

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...

Connected colored blocks

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...