Administering Global Service Groups

After connecting clusters in a global cluster environment, use the Global Group Configuration Wizard to convert a local service group that is common to the global clusters to a global group. This wizard also enables you to convert global groups into local groups.

Administering global groups requires the following conditions:

  A group that will serve as the global group must have the same name across all applicable clusters.

  You must know the user name and password for the administrator for each cluster in the configuration.

Use Cluster Explorer to bring a global group online and take a global group offline on a remote cluster.

Converting Local and Global Groups

1. From Cluster Explorer, click Configure Global Groups on the Edit menu.

   or

   From the Cluster Explorer configuration tree, right-click the service group, click Configure As Global or Make Local, and proceed to step 3b.

2. Review the information required for the Global Group Configuration Wizard and click Next.
3. Enter the details of the service group to modify:

   

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   1. Click the name of the service group that will be converted from a local group to a global group, or vice versa.
   2. From the Available Clusters box, click the clusters on which the group can come online. Click the right arrow to move the cluster name to the Clusters for Service Group box; for global to local cluster conversion, click the left arrow to move the cluster name back to the Available Clusters box. A priority number (starting with 0) indicates the cluster in which the group will attempt to come online. If necessary, double-click the entry in the Priority column to enter a new value.
   3. Select the policy for cluster failover:
   • Manual prevents a group from automatically failing over to another cluster.
   • Auto enables a group to automatically fail over to another cluster if it is unable to fail over within the cluster, or if the entire cluster faults.
   • Connected enables a group to automatically fail over to another cluster if it is unable to fail over within the cluster.
   4. Click Next.
4. Enter or review the connection details for each cluster:

   

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   Click the Configure icon to review the remote cluster information for each cluster.

   If the cluster is not running in secure mode:

   1. Enter the IP address of the remote cluster, the IP address of a cluster system, or the host name of a cluster system.
   2. Verify the port number.
   3. Enter the user name and password.
   4. Click OK.

   Repeat these steps for each cluster in the global environment.

   If the cluster is running in secure mode:

   5. Enter the IP address of the remote cluster, the IP address of a cluster system, or the host name of a cluster system.
   6. Verify the port number.
   7. Choose to connect to the remote cluster with the credentials used for the current cluster connection, or enter new credentials, including the user name, password, and the domain.

   If you have connected to the remote cluster using the wizard earlier, you can use the credentials from the previous connection.

   8. Click OK.

   Repeat these steps for each cluster in the global environment.

5. In the Remote cluster information dialog box, click Next.
6. Click Finish.

Bringing a Remote Service Group Online

1. In the Service Groups tab of the of the Cluster Explorer configuration tree, right-click the service group.

   or

   Click a cluster in the configuration tree, click the Service Groups tab, and right-click the service group icon in the view panel.

2. Click Online, and click Remote online.
3. In the Online global group dialog box:

   

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   1. Click the remote cluster to bring the group online.
   2. Click the specific system, or click Any System, to bring the group online.
   3. Click OK.