Which of the following storage systems uses both 2.5-inch and 3.5-inch SAS disk drives?（）

单项选择题WhichofthefollowingisanadvantageoftheIBMSystemStorageSANVolumeControllerovercompetingstoragevirtualizationproducts?（）

A.inline data encryption 
B.based on IBM Power servers 
C.superior performance benchmarks 
D.both in-band and out-of-band virtualization

单项选择题Thecustomerislookingforatieredstoragesolutionthatallowsthemtomanagedifferenttypesofdatawithinthesamesystem.Furtherquestioningrevealsthatthereasonthecustomerwantsamulti-tieredenvironmentisbasedoncost.WhichIBMsingletiersolutioncanprovideanenterpriselevelsystematamidrangecost?（）

A.XIV system 
B.TS3500 
C.DS8700 
D.DS5300