MSExchange ADAccess 2090

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上一次修改主题： 2011-03-19

本文对特定 Exchange 事件进行了说明并提供了可能的解决方案。如果您在此处未找到所需内容，请尝试在 Exchange 2010 帮助中进行搜索。

Details

Product Name

Exchange

Product Version

14.0

Event ID

2090

Category

Configuration

Symbolic Name

DSC_EVENT_REG_CDC_DOWN

Message Text

Process %1 (PID=%2). The configuration domain controller specified in the registry (%3) is unreachable. Exchange Active Directory Provider will select the configuration domain controller from the list of available domain controllers.

Explanation

This Warning event indicates that the computer specified in the Windows registry that must be used as a Configuration Domain Controller (CDC) cannot be reached. This situation can occur if one or more of the following conditions are true:

  • A registry key or server name is configured incorrectly. For example, you may have incorrectly spelled the name of the domain controller in the registry.

  • The computer specified in the event description has a network connectivity issue.

  • The domain controller specified in the event description is not running.

If the correct server name was specified, the specified server may be down or the network path may be down. Usually, if a configured domain controller is not reachable for any reason, Microsoft Exchange will select an appropriate CDC from the list of available domain controllers. Therefore, in most cases, this event can be ignored. However, if there is an accompanying MSExchangeDSAccess Event ID 2102, the Exchange services might not start. In this case, you must determine the basis of the problem and make sure that the domain controllers are reachable.

User Action

If the Exchange services start without any problems, you can safely ignore this warning. However, if the Exchange services do not start, do one or more of the following:

  • Make sure that the registry key and the server name are configured to use the correct values.

  • 使用 Ping 或 PathPing 命令行工具测试基本连接。使用 Ping 可隔离网络硬件问题和不兼容配置。使用 PathPing 可检测多重跳跃行程中的数据包丢失。有关详细信息，请参阅 Microsoft 知识库文章 325487：Windows 工作站的高级网络适配器疑难解答。

  • 运行 Dcdiag 命令行工具可测试域控制器的运行状况。为此，请在 Exchange 服务器上的命令提示符处运行 dcdiag /s:[域控制器名称]。查看 Dcdiag 的输出，找出其报告的任何失败或警告的根本原因。有关详细信息，请参阅位于 Windows Server TechCenter 的 Dcdiag 概述。

For More Information

如果您尚未执行此操作，请考虑运行 Exchange 工具，已创建这些工具以帮助您分析 Exchange 环境并对其进行疑难解答。这些工具可帮助确保您的配置与 Microsoft 最佳实践保持一致。它们还可以帮助您识别和解决性能问题，并改进邮件流。若要运行这些工具，请转到 Exchange 管理控制台的“工具箱”节点。若要了解有关这些工具的详细信息，请参阅管理工具箱中的工具。