. For a client to access the filesystem, the following ports must be open: TCP Port 311: Xsan Admin and secure server administration. TCP Port 312: General Xsan administration. UDP Port 626: Serial number registration and licensing. TCP Ports 49152–65535: The dynamic range used specifically for Xsan Filesystem Access
Xsan is Apple’s cluster file system based on (originally from ADIC) and later StorNext technology (Quantum). It allows multiple macOS, Windows, and Linux clients to concurrently access a shared block storage device over a Fibre Channel (FC) or iSCSI SAN. xsan filesystem access