Which storage service supports the NFS protocol for shared file systems in OCI?

The File Storage service in Oracle Cloud Infrastructure (OCI) is specifically designed to support the NFS (Network File System) protocol, making it ideal for shared file systems. NFS allows multiple clients to access and share files over a network, providing scalability and ease of use for applications that require file sharing among various compute instances.

This service is particularly beneficial for scenarios like big data analytics, content management, backup and restore solutions, and web serving, where shared access to files is necessary. The File Storage service is highly available and can be easily integrated with other OCI services, making it a robust solution for handling file-based workloads.

In contrast, Object Storage is designed for unstructured data and operates through REST APIs, rather than supporting NFS. Block Volume is intended for storage that is attached to compute instances and primarily uses block protocols, which do not facilitate sharing across multiple systems in the same manner as NFS. Data Transfer Appliance is a service used for transferring large amounts of data to and from OCI efficiently, and it does not function as a storage service that supports protocols like NFS. Hence, File Storage is the only option that aligns with the requirement of supporting the NFS protocol for shared file systems.