Sun Java System Application Server Enterprise Edition 8.1 2005Q2 High Availability Administration Guide

Database States

A database’s state summarizes its current condition. The following table describes the possible database states.

Table 3–14 HADB States

Database State 


High-Availability Fault Tolerant (HAFaultTolerant) 

Database is fault tolerant and has at least one spare node on each DRU. 

Fault Tolerant 

All the mirrored node pairs are up and running. 


At least one node in each mirrored node pair is running. 

Non Operational 

One or more mirrored node pairs is missing both nodes. 

If the database is non-operational, clear the database as described in Clearing a database.


No nodes are running in the database. 


Cannot determine the state of the database.