This post continues my series looking at log replication protocols, within the context of state-machine replication (SMR) or just when the log itself is the product (such as Kafka). So far I’ve been looking at Virtual Consensus, but now I’m going to widen the view to look at how log replication protocols can be disaggregated in general (there are many ways). In the next post, I’ll do a survey of log replication systems in terms of the types of disaggregation described in this post.