You can create a new mapping between a virtual disk (VDisk) and a host from the Creating Virtual Disk-to-Host Mappings panel.
After you have mapped VDisks to hosts, discover the disks on the host machine. This step requires accessing the host system and using the host system utilities to discover the new disks that are made available by the SAN Volume Controller. You also have the option of creating a file system for those new disks. Consult your host system documentation for more information on completing this task.