单项选择题
A. sar
B. iostat
C. svmon
D. vmstat
单项选择题 AllofthefollowingtypesofstatisticsarereportedbytheiostatcommandtoolEXCEPT:（）.
单项选择题 To examine the Exhibit, press the Exhibit button. Which option would produce this output from the errpt command? （）
单项选择题 AnSSAdiskthatispartofthemirroredvolumegroupneedstobereplaced.Whichofthefollowingproceduresshouldbeperformedbeforethediskisphysicallyabletobereplaced?（）