单选题
A Failed disks are taken offline immediately but are not dropped.
B Disk data is never lost.
C By default， the failed disk is not dropped from the disk group ever， protecting you from loss of that disk.
D The failed disk is automatically reformatted and then resynchronized to speed up the recovery process.
E Hot spare disks are automatically configured and added to the disk group.
正确答案
答案解析
略
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