单选题A disk contains several logical volumes. Which of the following commands indicates how much data is read from or written to a particular logical volume on the same disk?（）A sar B iostat C svmon D filemon
单选题
A disk contains several logical volumes. Which of the following commands indicates how much data is read from or written to a particular logical volume on the same disk?（）
A
sar
B
iostat
C
svmon
D
filemon
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