单选题Which of the following commands should be used to show how much data is read from or written to a particular logical volume， given there are several other logical volumes on the same disk？（）A sarB lslvC iostatD filemon
单选题
Which of the following commands should be used to show how much data is read from or written to a particular logical volume， given there are several other logical volumes on the same disk？（）
A
sar
B
lslv
C
iostat
D
filemon
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