[ovirt-users] Storage, extend or new lun ?

[Enrico Becchetti Gmail]

Dear All,
I've oVirt 3.5.3-1-1.el6 with two kind of storage , NFS and Fibre 
Channel.  Each Hypervisor
has HBA controller and Data CLutser has four Storage named: DATA_FC, 
DATA_NFS, EXPORT
and ISO-DOMAIN.

Anybody know how can I extend a DATA_FC ? Which is the best practies ?
Extend LUN from HP MSA controller or adding a new lun ?
if I extend lun inside HP MSA oVirt see the new size ?
Enrico
Thanks a lot.
Best Regards