单项选择题
	A. EMC 
	B. HDS 
	C. SUN 
	D. NetApp
单项选择题 Whichstoragesubsystemcanplacefilesfromthesamedirectoryindifferentstoragepoolsautomaticallyforimprovedperformance?()
单项选择题 WhichofthefollowingfeaturesisanIBMadvantagewhencomparingtheOracle/StorageTekVirtualStorageManager(VSM)totheIBMVirtualizationEngineTS7700(VTS)?()
单项选择题 WhichofthefollowingfunctionsdoesHitachiDataSystemsclaimabouttheHDSUSPV(UniversalStoragePlatform)?()