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

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### 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 | Description
--- | ---
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.
Operational | 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.
Stopped | No nodes are running in the database.
Unknown | Cannot determine the state of the database.

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