AcustomerRFPrequiresinstallationofanopensystemSANandmigrationof40TBcurrentlyresidingontenUNIXservers（oninternalserverdisk）.TheServiceLevelAgreement（SLA）requiresnomorethanfiveminutesperweekofplanneddowntimeforbackup.WhichIBMSystemStoragesolutionisthemostcosteffective（）
A.anIBMSystemStorageDS8700withLTOtapedrive
B.anIBMSystemStorageDS8700withFlashCopyManager
C.anIBMXIVStorageSystem
D.anIBMXIVStorageSystemwithSANVolumeController
参考答案：C
