Question

Which NFS version introduced support for pNFS (Parallel NFS), allowing clients to access data directly from multiple storage servers in parallel?

Accepted Answer

NFS version 4.1 introduced support for pNFS, or Parallel Network File System. In a standard NFS setup, a client talks to a single server that acts as a bottleneck, managing both the file system metadata, such as file names and permissions, and the actual file data. pNFS removes this bottleneck by separating the metadata from the data path. When a client wants to read or write a file, it contacts a metadata server to receive a layout, which acts as a map showing exactly where the data resides across multiple storage devices. Once the client has this map, it bypasses the metadata server and communicates directly with the specific storage servers holding the file fragments. This parallel access allows multiple clients to read or write data from several servers at the same time, significantly increasing total network throughput and scalability for high-performance computing environments.

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Which NFS version introduced support for pNFS (Parallel NFS), allowing clients to access data directly from multiple storage servers in parallel?

NFS version 4.1 introduced support for pNFS, or Parallel Network File System. In a standard NFS setup, a client talks to a single server that acts as a bottleneck, managing both the file system metadata, such as file names and permissions, and the actual file data. pN....