在设置任何高可用性环境时，都需要考虑这一点，在这种环境中，每个服务器互为备用，但是它们必须维持自己的服务水平。
This is something that you need to consider when setting up any highly-available environment where each server backs the other up, but also has its own service level it has to adhere to.
SQL Server 2008 Web版是针对运行于Windows服务器中要求高可用、面向Internet Web服务的环境而设计。
SQL Server 2008 Web is designed for highly available, Internet-facing Web-serving environments running on Windows Server.
这样服务器的总数从39个减少到14个，并为所有用户提供了一个高可用性且负载均衡的环境。
This reduced the total number of servers from 39 to 14 and provided a highly available and load-balanced environment for all users.
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