Secondary subcluster

A secondary subcluster is a type of subcluster that is easy to start and shutdown on demand. In Eon Mode, Vertica does not consider the nodes in a secondary subcluster when determining whether the database has shard coverage or a quorum of nodes. You can stop or remove secondary subclusters without causing the database to go into read-only mode. See Subcluster Types and Elastic Scaling for more information.