Product Documentation

Add a Server to a Pool

Oct 30, 2012
Before you add any new servers to a resource pool, make sure that the hardware and configuration requirements identified in Pool requirements are satisfied for the joining servers.
Important: You should back up any virtual machines hosted on a server before attempting to add it to a pool.

To add a server to an existing pool

  1. Select the server in the Resources pane, then do one of the following:
    • Drag the selected server onto the target pool in the Resources pane.
    • On the Server menu, click Add to Pool and then click on the target pool.
    • Right-click and click Add to Pool on the shortcut menu, and then click on the target pool.
  2. Click OK to confirm.

Once you have placed a server in a pool, it is shown as a pool member in the Resources pane, for example:



When you add a server to a pool, XenCenter will attempt to resolve any pool configuration issues if possible:

  • The joining server must be licensed at the same level as the pool master (for example, both are using Enterprise licenses). You cannot add a server to a pool whose master has a different license (for example, add a Platinum-licensed server to a pool with an Enterprise-licensed master).

    If you add a free XenServer to a pool whose master is licensed (with Advanced, Enterprise, or Platinum), you are prompted to upgrade the joining server's license to match the master's license. You have to do this to add the server to the pool. If there are no licenses available, you cannot add the server to the pool.

    After joining the pool, you can change the license of any pool members. The server with the lowest license determines the features available to all members in the pool. See Managing licenses for more information about licensing.

  • If the pool master is joined to a domain, you are prompted to configure Active Directory (AD) on the server joining the pool. When you are prompted for credentials on the joining server, enter your AD credentials for the domain to which the pool is joined. These credentials must have sufficient privileges to add servers to the domain.

Note that there may be other hardware or configuration issues that will prevent a server from successfully joining a pool: see Pool requirements for details of resource pool prerequisites.

When a new server joins a pool, the pool master's networking configuration, including network and bond information, is automatically inherited by the joining server. However, the joining server's management interface will not be changed to match the master, so you will need to reconfigure it after joining in order to use the same bond as the pool master. See To change the management interface for information on how to do this.

To place a server in a new pool

You place a managed server in a new pool using the New Pool wizard. The server will become the master in the new pool.
  1. In the Resources pane, select the server.
  2. Right-click and, on the shortcut menu, click Add to Pool and then New Pool.
  3. Create the new pool using the New Pool dialog box. See Create a new pool.