To grow the existing storage by growing a LUN

1. Grow the existing LUN. See the documentation for your storage array for information about how to create, mask, and bind the LUN.
2. Make Veritas Volume Manager (VxVM) aware of the new LUN size.

   # vxdisk -g dg1 resize 3PARDATA0_1

3. Calculate the new maximum volume size:

   # vxassist -g dg1 -b maxgrow vol1

4. Grow the volume and the file system to the desired size:

   # vxresize -b -F vxfs -g dg1 vol1 200g