对最小化服务中断来说，建立明确的升级程序、将有效的沟通渠道并入企业的最终用户支持过程都是至关重要的。
Establishing clear escalation procedures and integrating effective communication channels into the end user-support process of the enterprise are vital for the minimization of service disruptions.
向外扩展就是在能添加更多服务器来执行同样的功能时，无需中断软件，即可增加应用程序所支持的用户数。
Scale out is when more servers that perform the same functions can be added, without disturbing the software, to increase the number of users supported by the application.
在主数据库遭遇中断的应用程序不会将该问题暴露给终端用户，而是切换至备用服务器并重新发出连接。
Applications that encounter an outage at the primary database don't expose this problem to the end-user; rather, the application will switch to a cataloged secondary server and issue a reconnect.
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