About Xsan storage volumes on Mac
Xsan volumes are based on Redundant Array of Independent Disks (RAID) storage devices. An Xsan administrator sets up and manages Xsan volumes. If your computer is connected to an Xsan storage area network (SAN), a SAN volume might be available on your computer. Contact your Xsan administrator to learn how to connect your Mac to the SAN.
You can use an Xsan volume just like any other storage device, subject to the permissions and quotas established by the Xsan administrator. If you try to store more on an Xsan volume than your quota allows, you see a message saying you’ve exceeded your allocated space. To find out the size of your quota, check with the administrator.
After your computer is joined to a SAN, Xsan volumes remain available on your computer until you or the administrator removes the Xsan configuration profile (even if you log out of macOS or restart your Mac).
Xsan command-line management tools are built into macOS 11 and later. For information about how to configure and manage an Xsan storage area network (SAN), see the Xsan Management Guide.