A split mirror of a DB2 UDB database can be initialized as a snapshot of the source database, essentially an instantaneous clone of the source database.
DB 2 UD b数据库的分割镜像可以被初始化为源数据库的一个快照，实质上是源数据库的一个瞬时克隆。
A split mirror is an identical, independent, and instantaneous copy of a disk volume that can be attached to a different system.
分割镜像(split mirror)是具有同一性、独立性、瞬时性的磁盘卷拷贝，分割镜像可以被附加在其他系统上。
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