hot spare

基本解释

Each DS4500 is configured into RAID 5 4+P arrays plus some hot spare disks.
每个 DS4500 均被配置成 RAID 5 4+P 阵列外加热后备磁盘。
The storage should be optimized with a proper RAID configuration, such as a RAID 5 setup with a hot spare disk.
该存储必须通过适当的 RAID 配置进行优化，比如一个附带热备份磁盘的 RAID 5 设置。
You might want tocreate a second new user so that when you edit jack's loginfiles, you will have a hot spare in case something goes wrong.
你可能会创建第二个新用户，当编辑jack的登陆文件时，会有一个热备份以防止有误操作。

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