Delta V

The Big Distillation Column uses Delta V, which is produced by Emmerson.

Backup procedure

The Database Administrator tools have a Backup and Restore utility. Use these utilities to make a backup of your DeltaV databases. This utility is only backing up or restoring the DeltaV database files, as found in \\DeltaV\DVData\Databases\DatabaseName (where DatabaseName is the folder name of the database you are backing up or restoring). The Backup and Restore tool does not back up historical (PI) data, event data, or process graphics. A backup can only be restored into the same version of the DeltaV software. Only upgrade utility produces a file intended for import into a different version of DeltaV software.

All DeltaV applications must be closed and all locks cleared before backing up. If you back up a database with locks, those locks are also backed up. If you restore a database that was backed up with locks, the locks are also restored.

Backup

It is important that you back up your entire DeltaV system often. To do that, follow the instructions in the Full System Backup topic.

There might be times when you only want to back up your DeltaV databases (controller configuration, I/O setup, the control strategy, and so on), as found in \\DeltaV\DVData\Databases\DatabaseName (where DatabaseName is the folder name of the database you are backing up). This situation applies before making any changes, adding new nodes, or when creating simulation configurations.

When you only want to back up your DeltaV databases, use the Database Administrator tool Backup and Restore.

With the Backup and Restore tool, you can only back up the database for the workstation configuration. You cannot back up the entire system. The database is stored in UNC name: \\Machine Name\Databases. This is the same as the DeltaV\DVData\Databases folder if viewed from Windows Explorer. To back up the entire system, follow the instructions in the Full System Backup topic.

Important When VCAT (Version Control) is enabled on the database, the Backup utility will back up the DeltaV database as well as the VCAT database. The VCAT database is a SQL database. In order to back up the VCAT database to a destination drive that is not on the SQL database machine, the MSSQLServer and SQLServerAgent services must be given access to (permissions on) the destination machine (which must have a share where the backup will be written). Therefore, the service accounts must be modified with the Service Control Manager. The accounts must be changed from the default of SYSTEM to a Windows account that has access to the destination machine (with permissions to the share and the destination folder) and is in the Administrators group on the DeltaV ProfessionalPLUS machine. An example of such an account would be the DeltaVAdmin account if the destination machine were running the DeltaV software or the destination machine had granted DeltaVAdmin access to the resource. Refer to Modify SQL Services Logon for more information.

Restore

Restoring the DeltaV database is done when there is a problem with the database that the other Database Administrator tools (for example, Set Active Database and Register Database) cannot solve.

Note With the Backup and Restore tool, you can only restore the DeltaV database (controllers, I/O configuration, and control strategy). You are not restoring the entire DeltaV system.

The database is normally stored in UNC name: \\Machine Name\Databases. This is the same as the DeltaV\DVData\Databases folder if viewed from Windows Explorer. To restore the entire system, follow the instructions in the Full System Restore topic.

If you restore the database to a different machine or under a new name, you need to set the server host machine, set the active database, and synchronize the workstations.

Backing up the Objectivity Database

The Objectivity Database contains the control configuration data that defines the workstations, controllers, and modules that run in the controllers. The display data consists of the operator displays.

1. Run the DeltaV Database Administrator tool by clicking Start | DeltaV | Engineering | Database Administrator.

2. Use the DeltaV Database Administrator tool to back up the configuration database. For instructions on how to back up this database, refer to the online help for the DeltaV Database Administrator tool. The backup procedure takes several minutes.

3. If the previous backup is no longer needed, delete it using Windows Explorer. Note It is required that you exit all DeltaV Engineering Tools before running a backup of the active configuration database. These tools access the configuration database, and the integrity of a database backup is not guaranteed while any of these tools are open. An error dialog appears during the backup if there are open programs. To determine which programs are open, double-click Database Connections in Database Administrator.

Restoring the Objectivity Database

Note Exit the DeltaV Engineering tools before restoring the database. Use Database Connections if necessary.

1. Use the DeltaV Database Administrator tool to restore the configuration database. For instructions on how to restore this database, refer to the online help for the DeltaV Database Administrator tool. Also, make certain that you are restoring the appropriate backup. The restore procedure takes several minutes.

2. Click OK in the message box that states that the data has been restored.

3. Close the window and exit the application.