State Database Replicas Overview

A state database stores information about the state of your Enhanced Storage configuration. The state database records and tracks changes made to your configuration. Enhanced Storage automatically updates the state database when a configuration change (for example, creating a new volume) or state change (for example, a submirror failure) occurs.

The state database is actually a collection of multiple, replicated database copies. Each copy, referred to as a state database replica, ensures that the data in the database is always valid. Having copies of the state database protects against data loss from single points-of-failure. The state database tracks the location and status of all known state database replicas.

See State Database Replica Planning for more information about placing and planning your state database replicas.