单项选择题AcustomerhasacombinationoffifteenWindowsfileserverswithdirectattachedstorageandthreePowerSystemswithAIXdatabaseserversSANattachedtoaDS4700.Theywouldliketoupgradeandplanfor40TBcapacity.Thecustomerneedstomovetoamorescalablestoragesystemtoincludeallservers.Whichofthefollowingwouldbemostappropriatetoaskfirst?()
A.What are Disaster Recoveryplans
B.What are plans for datamigration
C.What storage system space isavailable
D.DoesiSCSI meet the needs