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SNIA Developer Conference September 15-17, 2025 | Santa Clara, CA

SMB3 Posix/Linux Extensions

San Tomas + Lawrence

Tue Sep 16 | 7:00pm

Abstract

With SMB3.1.1 POSIX Extensions now implemented in multiple open-source clients and servers, the protocol has matured to support a wide range of Linux/POSIX semantics over the network. However, as the Linux kernel and its ecosystem continue to evolve—with new filesystem syscalls, flags, and ioctls—further protocol enhancements are needed to maintain parity with local filesystems. This BoF offers an informal forum to discuss priorities for new features, explore support for emerging workloads, and identify performance improvements for key Linux use cases.