单选题Which of the following commands should be used to determine which disk of a system is experiencing a disk I/O performance problem？（）A filemonB istatC vmstatD iostat
单选题
Which of the following commands should be used to determine which disk of a system is experiencing a disk I/O performance problem？（）
A
filemon
B
istat
C
vmstat
D
iostat
参考解析
解析：
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