You need to reliably transfer 15 TB from a POSIX on-premises source to Google Cloud weekly over a 500 Mbps internet connection following Google best practices. What should you deploy?

The correct choice is to install Storage Transfer Service for on-premises data in your data center. This service is designed for large-scale, recurring transfers from on-premises POSIX sources to Google Cloud. Installing the transfer agent directly in your data center ensures optimal performance and security by keeping the data transfer within your network until it reaches Google Cloud. A 500 Mbps connection is sufficient for this service to handle 15 TB weekly. Using Cloud Scheduler with gsutil is not ideal for 15 TB over a 500 Mbps connection; gsutil is better for smaller, ad-hoc transfers. Transfer Appliance is for initial bulk transfers when internet bandwidth is insufficient or cost-prohibitive, not for recurring weekly transfers. Installing Storage Transfer Service on a Google Cloud VM would require the data to traverse the internet twice (from on-premises to the VM, then from the VM to Cloud Storage), which is inefficient and introduces unnecessary latency.