Filesystem Access | Xsan

| Task | Command (macOS) | Notes | |------|----------------|-------| | View affinity | xsanctl affinity Media_SAN | Shows storage tiers (e.g., SSD vs HDD) | | Set affinity for a file | sudo xsanctl setaffinity Media_SAN /path/to/file "FastTier" | Moves file to faster storage | | Show file’s stripe group | xsanctl getaffinity Media_SAN /path/to/file | | | Force metadata controller failover | sudo xsanctl failover Media_SAN | Only run during maintenance | | Enable/disable client access | xsanctl setquota Media_SAN -u username -b 1T | Sets user quota |

Access to Xsan files is governed by standard macOS permission structures and more advanced security layers: Xsan Management Guide - Apple Developer xsan filesystem access

: Administrators must ensure that the firewall allows the specific Apple-defined port ranges for Xsan to function correctly. Network Scans | Task | Command (macOS) | Notes |

: To prevent data corruption, clients communicate with the MDC over a dedicated Ethernet network . This "out-of-band" communication ensures that while many clients can access the same physical disks, the file system remains organized and consistent. Use the xsanctl command-line tool or macOS Server/management

Use the xsanctl command-line tool or macOS Server/management tools to manage ACLs.

xsanctl status