Passive replication has been extensively studied in the literature. However, there is no comprehensive study yet with regard to its degree of communication synchrony. Therefore, we propose a new, detailed classification of hot passive replication protocols, including a survey of the fault tolerance and performance of each class.
Citation:
Ruben de Juan-Marin, Hendrik Decker, Francesc D. Munoz-Esco, "Revisiting Hot Passive Replication," ares, pp.93-102, The Second International Conference on Availability, Reliability and Security (ARES'07), 2007