Xsan Filesystem Access

Apple's Xsan is a clustered file system (64-bit) that enables multiple macOS workstations to share high-speed access to a centralized storage area network (SAN). By utilizing the Stornext file system core, Xsan allows collaborative environments—particularly in media and post-production—to treat a massive pool of disk space as a local drive with block-level performance.

1. AFP (Apple Filing Protocol): A file sharing protocol that allows Macs to access Xsan volumes over a network.
2. NFS (Network File System): A protocol for sharing files across a network, supported by Xsan.
3. iSCSI (Internet Small Computer System Interface): A protocol for accessing block-level storage over a network.
4. Xsan CLI (Command-Line Interface): A command-line tool for managing and accessing Xsan volumes.

Distributed LAN Client (DLC): Introduced in later versions of Xsan, DLC allows clients to access the SAN over standard Ethernet. While not as fast as Fibre Channel, it’s a cost-effective way to give secondary workstations access to the same collaborative pool. The Technical Essentials: Ports and Protocols xsan filesystem access

Access to Xsan files is governed by standard macOS permission structures and more advanced security layers: Xsan Management Guide - Apple Developer Apple's Xsan is a clustered file system (64-bit)