SNIA Developer Conference September 15-17, 2025 | Santa Clara, CA
Linux NFS Server Progress Update
Abstract
The Linux in-kernel NFS server continues its history of innovation, leveraging the rich storage and network ecosystems available in the Linux kernel. This talk covers accomplishments made during the past year and provides a roadmap for new developments planned for the near future. Topics will include:
* Security enhancements, such as RPC with TLS and new Kerberos enctypes
* Native support for pNFS block layout with SCSI, iSCSI, and soon NVMe devices
* Community-developed open source CI infrastructure now used to qualify upstream kernels
* Support for a variety of RDMA capabilities, including software emulated devices
* More robust handling of network partitions
Come join the discussion and learn how to get involved with the premier NFS server implementation on Linux.
Learning Objectives
Understand the feature set available in the current Linux in-kernel NFS server
Discover recent NFS server improvements now available in leading-edge Linux distributions
Learn about priorities for new features and facilities for the server
Related Sessions
Zoned XFS: Transparent and Efficient Zoned Storage Support For Scalable Storage Systems
Zoned storage enables higher storage densities with Shingled Magnetic Recording (SMR) hard disks and reduces costs and improves tail latency with Zoned Namespace (ZNS) SSDs. Zoned XFS adds zoned storage support to the existing scalable XFS file system for Linux to seamlessly enable the benefits of zoned storage for unmodified applications such as key-value stores or distributed storage systems with performance beating that of existing zone-aware file systems on Linux. We present an overview of Zoned XFS design and performance evaluation results which show that Zoned XFS achieves better throughput with SMR hard disks for small and large file read and write workloads compared to the BTRFS and F2FS file systems, even in the presence of garbage collection with a nearly full file system. With RocksDB, we show that Zoned XFS on a ZNS SSD achieves higher read throughput with mixed read/write workloads and overwrite workloads compared to F2FS. Furthermore, Zoned XFS compares favorably to the RocksDB special purpose ZenFS zoned storage backend.
