单项选择题 An application server is running slowly. After viewing performance monitoring data it is detected that the disk queue length is high.  Which of the following could BEST resolve the situation？（）

单项选择题 WhichofthefollowingservervirtualizationfeatureswouldBESTallowanadministratortoquickly prepareavirtualserversothatitisreadyforuse？（）

单项选择题 An administrator recently installed a new array controller into a server. When the server is running POST the controller does not appear as present. Which of the following could be the reason for this?（）