ActivateAt Command
Use ActivateAT to activate local computer as application-tier server.
Required Permissions
To use the ActivateAT command, you must be a member of the Team Foundation Administrators group on the Team Foundation application-tier server and a member of the sysadmin group on the SQL Server on the Team Foundation data-tier server. For more information, see Team Foundation Server Permissions.
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Even if you are logged on with administrative credentials, you must open an elevated Command Prompt to perform this function on a server that is running Windows Server 2008. To open an elevated Command Prompt, click Start, right-click Command Prompt, and click Run as Administrator. For more information, see the Microsoft Web site. |
TFSAdminUtil [/noprompt | /i] ActivateAT [serverName]
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We recommend that you back up the databases in the Team Foundation Server data tier server. |
You must prevent multiple application tiers from getting connected to the same data tier. The ActivateAT command of the TFSAdminUtil command-line utility is used to activate the appropriate application tier and bind it to the data tier server.
If you are activating a standby application-tier server, make sure that you verify that the Reporting Services are online. For more information, see How to: Activate a Fail-Over Application-Tier Server.
Example Usage Scenarios
The ActivateAT command can be used by the administrator in various scenarios. The following is a list of example scenarios:
Application tier maintenance or fixing:
The administrator configures a new application tier and must activate it instead of the current application tier. The current (old) application tier is shut down. The administrator runs the command-line utility TFSAdminUtil activateAT to bind the new application tier to the data-tier server.
Active application tier failure:
As the application tier is a single point of failure in the system, the administrator might want to introduce a standby application-tier server. The active application tier is connected to the network and pointing to the correct data-tier server. The data tier should sustain the active application tier and should not perform transactions with the standby application-tier server. ActivateAT command is used to switch between the two application-tier servers as needed.
If the active application-tier server fails, the administrator must switch to the standby application-tier server. First, the administrator shuts down, or resets Internet Information Services (IIS) on the failed application-tier server. The administrator then runs the command-line utility TFSAdminUtil ActivateAT to bind the standby application tier to the data-tier server.
