Online Quiesced Backup
A backup that is performed while the database is in a read-only state is referred to as a quiesced online, or warm, backup.
The database is placed in a quiescent state by allowing current active transactions to complete and then flushing modified buffers from cache to the stable database.
In this mode, the physical database files contain all committed updates to the database and the database files are opened in read-only mode with shared read access, allowing external backup processes to safely copy the database files as a consistent database image.
During a quiesced backup, updating transactions are not permitted and attempts to execute database transactions raise a database exception.
When a backup is performed in a quiescent state, the physical database files are guaranteed to contain all database updates and a quiesced backup does not require backup recovery when the database files are restored.
Use the JADE Database Administration utility (jdbadmin) to perform online backups. For details, see Chapter 2, "Using the JADE Database Administration Utility".
You can also use the JADE database administration framework to integrate online backup services into your applications or to build standalone database administration applications. For details, see Chapter 7, "
