可以立即复制或链接整个目录的内容。
The contents of an entire directory can be copied or linked at once.
对主要服务器的任何更新会立即复制到辅助服务器，以维护一个活动数据副本。
Any update made on this primary server is immediately replicated to the secondary server so as to maintain a copy of the active data.
可以按调度计划执行复制，也可以在主服务器上完成修改之后立即复制。
The replication can be configured to occur on a scheduled basis or immediately after the change is completed on the master server.
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