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单项选择题Companycom would like the ability to shrink filesystems. They currently have JFS filesystems. Which of the following is necessary to shrink the filesystems?（）

A、Copy the existing filesystems to JFS2

B、Defragment the filesystem， then reduce its size

C、Change the file system attribute allow_shrink=yes on the existing filesystems

D、Modify the logical volume attribute allow_shrink=yes on the existing logical volumes

  • A

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