You might want to set up automatic weekly backups for your Insight database to protect your data. These automatic backups overwrite the files in the specified backup directory.
Best practice: When you are setting up the weekly backup of the OCI database, you need to store the backups on a different server than Insight is using, in case that server fails. Do not store any manual backups in the weekly backup directory because each weekly backup overwrites the files in the directory.