AcustomerusinganIBMSystemStorageDS8700isfacingperformanceproblems.Aftertheanalysisbythetechnicalspecialist，thediagnosisindicatesthatthecachehitsmaybeimprovedbyacacheupgrade.Howcanthesystembemonitoredinordertocheckthebenefitsofthecacheupgrade（）
A.usingthevmstatcommandontheAIXserversconnectedviaSANtotheDS8700system
B.lookattheIOPSusingtheDS8700
C.readingtheperformancereportsviaTivoliStorageProductivityCenterforDisk
D.generatingreportsusingtheTotalStorageExpert
参考答案：C
