单项选择题
A.the intermediate site volumes are Metro Mirror target volumes for the remote site
B.the intermediate site volumes are Global Mirror target volumes for the remote site
C.the intermediate site volumes are both Global Mirror source and Metro Mirror target at the same time
D.the intermediate site volumes are alsoFlashCopy sources for the remote site
单项选择题 Whatmustbespecifiedtocreateanextentpool（）
单项选择题 A Business Partner is proposing the installation an IBM XIV Storage System at a customer location. What is the best time to discuss floor space requirements for the solution（）
单项选择题 AnIBMBusinessPartnerhassoldaDS5020andnewIBMSANswitchestoreplaceacustomerEMCstorageinfrastructure.ThecustomerdissatisfactionhasarisenduringtheinstallationbecauseaccordingtotheDS5020interoperabilitymatrix，twoHPProliantserversrunningExchangehaveFCHBAsthatarenotsupported.Whichofthefollowingisthemostprobablecauseofthecustomerdissatisfaction（）