It seems you use an IP Camera with our FTP service. Please note DriveHQ's FTP hosting service is designed for businesses. You can use FileZilla or other FTP program to transfer large files among employees and external clients. Using DriveHQ's FTP service for IP cameras is not recommended and not supported.
However, we have a much better FTP service that is fully optimized for IP cameras. Please visit www.cameraftp.com for more detailed information. With CameraFTP's FTP service, you never need to manually delete any files. As long as you order a correct service plan, you never need to worry about your storage usage.