Triad

Resin cluster and triad

A Resin triad is the first three servers in a cluster. The triad offers full replication of distributed data, including distributed caching and distributed sessions.

For sites with a single server, the server is considered a triad server. For sites with two servers, both servers are considered triad servers, and back each other up.

Resin's clustering uses the triad as a reliable store for shared data across the Resin system.