单选题A system administrator has run topas on a server. The output shows that the %iowait of the system is 60% and that most of the disk activity is on hdisk0. Which of the following procedures should be performed to fix this problem?（）A Replace the hard disk with a faster disk drive. B Add another paging space on another hdisk. C Spread the data hdisk0 across several hdisks. D Nothing, since %iowait is a measurement of CPU time.
单选题
A system administrator has run topas on a server. The output shows that the %iowait of the system is 60% and that most of the disk activity is on hdisk0. Which of the following procedures should be performed to fix this problem?（）
A
Replace the hard disk with a faster disk drive.
B
Add another paging space on another hdisk.
C
Spread the data hdisk0 across several hdisks.
D
Nothing, since %iowait is a measurement of CPU time.
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