If you try to make a quick backup of the data at a particular point in time (a shadow copy), E-mail transactions may still occur while the backup is progressing.

如果试图在某个特定的时间点制作数据的快速备份(卷影副本)，则电子邮件事务仍然可能在备份进行的过程中发生。

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For example, as an administrator, you could use the space to create a quick backup, or to compress existing data without having to use a secondary file system for the purpose.

例如，作为管理员，您可以使用这个空间来创建快速备份，或对现有的数据进行压缩而无需为达到该目的使用辅助文件系统。

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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.

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。

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Allen Iverson, the diminutive (6-foot) point guard for the Denver Nuggets, is a quick player who can shoot--skills that might have won him a backup spot on an NBA team.

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