题目内容 (请给出正确答案)
提问人:网友c********1 发布时间:2023年8月13日 08:05
[多项选择题]

关于RAD1说法正确的是()

A.RAID1具有很高的安全性

B.RAID1磁盘利用率是50%

C.RAID1需要通过两次读写来实现磁盘镜像

D.RAID1读写数据都很慢

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