Mount a LUN on a Virtual Machine

I have one more question . I want to mount a LUN on the Virtual machine , is there a way to do it ?

Using vCenter i was able to add this LUN as a Hard Disk 2 ( Mapped Raw LUN )
I have LUN which contains some data on it , I want to mount it on a Virtual Machine .

i did add the LUN ( in vCenter ) as hard disk . below are the steps ,
Summary -> Edit settings -> Add Hard Disk 2  -> Raw Device Mappings  -> and selecting the appropriate LUN -> Store with Virtual Machine  -> Physical Setting -> Virtual Device Node .

When i reboot the machine .

I can see the partition in cat /proc/partition .

My question is how do i mount the partition . i dont want to format the partition as it had data on , Is there a way i can mount it ?