Unsuccessful backups

If the DeltaV Continuous Historian database is unavailable due to access by another applications and does not become available again during the retry period, an error will be logged stating that the retry period was exceeded. The error message is available for viewing in the Windows Event Viewer or the backup log file, if this option was selected. The applications that may lock the DeltaV Continuous Historian database are:

• The Continuous Historian Administration application, when the Backup, Restore, Export, Create Extended, or Delete options are running
• The Continuous Historian Server, while performing an Automatic Export or Delete operation

If the operation completes with the retry period, the backup will start and complete normally.