In a storage area network having a host device and a consolidated storage array , one of the storage arrays of {HEAD ~ the CSA} acts as {TAIL ~ a primary device} of the CSA to form logical data volumes across one or more of the total storage arrays of the CSA 
In a storage area network having a host device and a consolidated storage array , one of the storage arrays of { HEAD ~ the CSA } acts as { TAIL ~ a primary device } of the CSA to form logical data volumes across one or more of the total storage arrays of the CSA
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH