A customer must restrict the share content visibility of a Dell Unity file system based...

https://www.dell.com/support/manuals/en-us/unity-600f/unity_p_multiprotocol_infomod/security-on-file-system-objects?guid=guid-0d5c65ec-07a1-46f1-8936-a02f4c86b126 &lang=en-us

Access-based enumeration is the attribute that must be used at the share level to restrict the share content visibility of a Dell Unity file system based on the access rights. Access-based Enumeration (ABE) is a feature that allows you to hide files and folders from users who do not have the necessary permissions to access them. When ABE is enabled, users only see the files and folders that they have permission to access. This helps to prevent users from accidentally accessing data that they should not have access to, and it helps to maintain the security and integrity of the data on the file system.