"Universal Xport" LUN is used for in-band storage array management.

Cc: Sean Stewart <Sean.Stewart@netapp.com>
Cc: Christophe Varoqui <christophe.varoqui@opensvc.com>
Cc: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Cc: SCSI ML <linux-scsi@vger.kernel.org>
Cc: device-mapper development <dm-devel@redhat.com>
Signed-off-by: Xose Vazquez Perez <xose.vazquez@gmail.com>
Acked-by: Sean Stewart <Sean.Stewart@netapp.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>