Which NFS protocol versions are compatible with vSphere 8?

The accurate compatibility with vSphere 8 involves NFS 3 and NFS 4.1. NFS 3 is a widely adopted version that has been historically supported in VMware environments, offering features like file locking and asynchronous writes, which are important for virtualization workloads. On the other hand, NFS 4.1 introduces advancements including improved locking mechanisms and support for greater scalability, which benefit modern virtualized applications. This combination allows for a versatile setup that caters to both legacy and contemporary storage solutions.

NFS 2 is largely outdated and lacks many features necessary for efficient virtualization, making it less suitable for vSphere environments. NFS 5, while it may offer new features, is generally not included in the compatibility layer for vSphere 8 based on the available documentation and the history of supported versions. Thus, focusing on NFS 3 and NFS 4.1 aligns with the recommended practices for storage in vSphere 8 deployments.