可以将从非自动存储数据库创建的备份镜像恢复到自动存储数据库系统，但是反之则不行。
You can restore a backup image taken from a non-automatic storage database into an automatic storage database system, but not the opposite.
初始化为镜像的分割镜像可以用作系统级备份，从而使管理员可以执行快速的文件系统级数据库恢复。
A split mirror initialized as mirror can be used as a system level backup, allowing the administrator to perform a quick file system level recovery of the database.
可以将32位系统上创建的备份镜像恢复到64位系统，但是反之则不行。
You can restore a backup image taken on a 32 bit level system into a 64 bit level, but not the opposite.
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