To preserve the data, use the Oracle supplied tool “exp and imp” to back up and restore your database.
1. Perform SSH to the Virtual Appliance and run the following command on the command line to switch user to the Oracle user:
su - oracle
2. To export the data, run the command exp on the command line
3. When prompted, select SYSTEM as username
3. Password is the one you have set during the vApp deployment.
4. Select what needs to be backed up by answering question presented by the utility.
5. Select the location to store the backup file.
At this point, the backup process kicks in and it might take several minutes depending on the size of the database.