单项选择题

AcustomerusinganIBMSystemStorageDS8300isfacingperformanceproblems.Aftertheanalysisbythetechnicalspecialist,thediagnosisindicatesthatthecachehitsmaybeimprovedbyacacheupgrade.Howcanthesystembemonitoredinordertocheckthebenefitsofthecacheupgrade()
A.usingthe"vmstat"commandontheAIXserversconnectedviaSANtotheDS8300system
B.lookingatthenumberofI/OmanagedbytheDS8300system
C.readingtheperformancereportsviaTotalStorageProductivityCenterforDisk
D.generatingreportsusingtheTotalStorageExpert

A.Aftertheanalysisbythetechnicalspecialist,thediagnosisindicatesthatthecachehitsmaybeimprovedbyacacheupgrade.Howcanthesystembemonitoredinordertocheckthebenefitsofthecacheupgrade()
A.usingthe"vmstat"commandontheAIXserversconnectedviaSANtotheDS8300system
B.lookingatthenumberofI/OmanagedbytheDS8300system
C.readingtheperformancereportsviaTotalStorageProductivityCenterforDisk
D.generatingreportsusingtheTotalStorageExpert
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