'Given the protocol type, return I for iscsi and F for fc.
:param protocol: iscsi or fc
:returns: string -- \'I\' for iscsi or \'F\' for fc'

@staticmethod
def get_short_protocol_type(protocol):

    if (protocol.lower() == ISCSI.lower()):
        return 'I'
    elif (protocol.lower() == FC.lower()):
        return 'F'
    else:
        return protocol
