What service is primarily used for offline data transfer to OCI?

The service primarily used for offline data transfer to Oracle Cloud Infrastructure (OCI) is the Data Transfer Appliance. This appliance enables users to securely and efficiently transfer large amounts of data into OCI without the need for a high-speed internet connection.

The Data Transfer Appliance is a physical device that customers can request from Oracle. It is delivered to a specified location, where the user can load their data onto the appliance. Once the data is loaded, the appliance is returned to Oracle, and the data is uploaded directly into OCI. This method is particularly useful for organizations that need to migrate vast amounts of data quickly or those with limited internet bandwidth.

Utilizing the Data Transfer Appliance can significantly speed up the data transfer process and reduce the costs associated with transferring large datasets over the internet. This service is tailored for businesses that deal with considerable data workloads and require a secure and reliable method for getting their data into the cloud.