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单选题
In an iostat report， which of the following options best describes the value of % idle？（）
A
A representation of the equation （tps/kbps）*100
B
The percentage of time the disks are idle with no activity
C
The percentage of time the disks are idle with no outstanding CPU requests
D
The percentage of time the CPU is idle with no outstanding disk I/O requests
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单选题Which of the following metrics provided by the iostat report is used to initially determine if a system is I/O bound？（）A
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单选题Which of the following metrics provided by the iostat report is used to initially determine if a disk is I/O bound？（）A
tinB
toutC
% idleD
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单选题In an iostat report， which of the following options best describes the value of % tm_act？（）A
The total CPU usage for this driveB
The bandwidth utilization of the indicated driveC
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It can best be represented by the equation （kilobytes read/kilobytes written） *100
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单选题Which of the following is the BEST recovery method for a server that only aggregates report data and stores data on separate servers？（）A
FullB
Disk imagingC
IncrementalD
Tape backup
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