You might need to remove an Enterprise pool as part of a change to your environment. For example, to change a pool name, you move users out of the current pool, deactivate all server roles in the pool, remove the pool, create a new pool, activate servers to associate them with the new pool, and then move users to the new pool. When removing a pool, you have the following options:

Delete the user database. By default, the Remove Enterprise Pool Wizard keeps the user database, which preserves user contacts, groups, and access control entries (ACEs), but you can choose to delete the user database.

Force removal of the Enterprise pool. By default, the wizard does not remove an Enterprise pool if users are still assigned to it. If you force removal, any users who are assigned to the pool are disassociated from the pool when it is removed. You can later assign these users to a different Enterprise pool or Standard Edition server.

Caution:
Removing a pool can result in the loss of data and settings. Before removing a pool, do the following: Ensure that all data and settings have been backed up and that appropriate restoration procedures are in place. It is also a good idea to export user contacts by using the DBImpExp.exe tool. For details about how to do this, see Decommissioning Standard Edition Servers and Enterprise Pools. Move user accounts to a different pool or to the Unassigned usersnode. For details about how to do this, see Moving Office Communications Server Users. Deactivate server roles to remove Active Directory objects associated with the pool. For details about how to do this, see Deactivating Server Roles. Move all conference directories to a different pool or delete all conference directories. For details about conference directories, see Simplified Managementin New Server Features in the Getting Started documentation. If the Office Communications Server 2007 R2 environment requires a major change that makes it necessary to completely remove and reinstall all server roles, decommission your Standard Edition servers and Enterprise pools instead of removing the pool. For details about how to do this, see Decommissioning Standard Edition Servers and Enterprise Pools.

Caution:

Removing a pool can result in the loss of data and settings. Before removing a pool, do the following:

Ensure that all data and settings have been backed up and that appropriate restoration procedures are in place. It is also a good idea to export user contacts by using the DBImpExp.exe tool. For details about how to do this, see Decommissioning Standard Edition Servers and Enterprise Pools.
Move user accounts to a different pool or to the Unassigned usersnode. For details about how to do this, see Moving Office Communications Server Users.
Deactivate server roles to remove Active Directory objects associated with the pool. For details about how to do this, see Deactivating Server Roles.
Move all conference directories to a different pool or delete all conference directories. For details about conference directories, see Simplified Managementin New Server Features in the Getting Started documentation.

If the Office Communications Server 2007 R2 environment requires a major change that makes it necessary to completely remove and reinstall all server roles, decommission your Standard Edition servers and Enterprise pools instead of removing the pool. For details about how to do this, see Decommissioning Standard Edition Servers and Enterprise Pools.

To remove an Enterprise pool

Use the procedures described in this section to remove an Enterprise pool:

Open Office Communications Server 2007 R2.
In the console tree, expand the Forestnode, and then expand Enterprise pools.
Right-click the Enterprise pool that you want to remove, and then click Remove Pool.
In the Remove Enterprise Pool Wizard, specify the following:
- Whether to keep the user database. Keeping the database preserves existing user contacts, groups, and ACEs.
- Whether to force removal of the Enterprise pool. Forcing removal dissociates any existing end users from the pool and disables any existing servers in the Enterprise pool.

Note:
To remove a Web Components Server, you may have to manually remove permissions. During installation, Full Control permissions are granted to the RTC Component Local Group account for the Web and Non-Web folders. If these folders contain any files or subfolders, the permissions remain after you remove the Web Components Server. To remove the permissions from the folders, you can use the Securitytab of the Propertiesdialog box for each folder. By default, these folders are installed at the following locations: %programfiles%\Microsoft Office Communications Server 2007 R2\Web Components\Data MCU Web\Non-Web %programfiles%\Microsoft Office Communications Server 2007 R2\Web Components\Data MCU Web\Web

Note:

To remove a Web Components Server, you may have to manually remove permissions. During installation, Full Control permissions are granted to the RTC Component Local Group account for the Web and Non-Web folders. If these folders contain any files or subfolders, the permissions remain after you remove the Web Components Server. To remove the permissions from the folders, you can use the Securitytab of the Propertiesdialog box for each folder. By default, these folders are installed at the following locations:

%programfiles%\Microsoft Office Communications Server 2007 R2\Web Components\Data MCU Web\Non-Web

%programfiles%\Microsoft Office Communications Server 2007 R2\Web Components\Data MCU Web\Web