Currently Central DB supports the following Storage options:

• Managed PVC - operator will create PVC
• Unmanaged PVC - operator supports use of manually created PVC
• Externally hosted PostgreSQL database
• Hostpath storage

Scanner V4 on other hand only supports operator managed PVC.

It would be nice to add the following storage options for Scanner V4 to make persistent storage configuration consistent across different ACS components:

• Unmanaged PVC - this will be particularly useful for cases when storage needs to be migrated to other StorageClass
• Externally hosted PostgreSQL database - this will be useful for cases where better data resiliency or database performance is required.