Apple Xsan 1.4 - Manual (Page 26)

26 Chapter 1 Overview of Xsan
Volumes
Storage pools are combined to create the volumes that users see. From the user’s
perspective, the SAN volume looks and behaves just like a large local disk, except that:
 The size of the volume can grow as you add underlying arrays or storage pools
 Other users on the SAN can access files on the volume at the same time
In the illustration on page 23, two storage pools are combined to create a single shared
volume.
You create volumes and mount them on client computers using the Xsan Admin
application.