NFSv41

Network File System version 4.1, often abbreviated as NFSv4.1, is a network file system protocol developed by the Internet Engineering Task Force (IETF). It builds upon previous versions of NFS, most notably NFSv4, introducing significant enhancements for modern distributed environments. A key feature of NFSv4.1 is the introduction of session trunking, which allows multiple TCP connections to be multiplexed over a single NFS session. This can improve performance and resilience by enabling parallel I/O operations and providing a fallback if one connection fails.

Another important advancement in NFSv4.1 is the addition of the Compound Procedure mechanism. This allows for multiple NFS operations to be combined into a single RPC (Remote Procedure Call), reducing the overhead of numerous individual requests and further boosting efficiency, especially in high-latency networks. NFSv4.1 also incorporates enhancements for delegating file access, enabling clients to perform operations directly on files without continuous server interaction, which can accelerate performance for certain workloads. Furthermore, it provides improved support for file system server clustering and replication, making it more suitable for enterprise-level storage solutions. NFSv4.1 continues to support the security features introduced in NFSv4, such as Kerberos authentication, ensuring secure data access over the network.