Configuring global cluster components at the primary site


Configuring global cluster components at the primary site
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Perform the following steps to configure global cluster components at the primary site.

If you have already completed these steps during the VCS cluster configuration at the primary site, then proceed to the next task to set up a VCS cluster at the secondary site.

See Installing and configuring VCS at the secondary site.

Run the GCO Configuration wizard to create or update the ClusterService group. The wizard verifies your configuration and validates it for a global cluster setup.

See About installing a VCS license.

To configure global cluster components at the primary site

Start the GCO Configuration wizard.
```
# gcoconfig
```
The wizard discovers the NIC devices on the local system and prompts you to enter the device to be used for the global cluster.
Specify the name of the device and press Enter.
If you do not have NIC resources in your configuration, the wizard asks you whether the specified NIC will be the public NIC used by all systems.
Enter y if it is the public NIC; otherwise enter n. If you entered n, the wizard prompts you to enter the names of NICs on all systems.
Enter the virtual IP to be used for the global cluster.
You must use either IPv4 or IPv6 address. VCS does not support configuring clusters that use different Internet Protocol versions in a global cluster.
If you do not have IP resources in your configuration, the wizard does the following:
- For IPv4 address:
  
  The wizard prompts you for the netmask associated with the virtual IP. The wizard detects the netmask; you can accept the suggested value or enter another value.
- For IPv6 address:
  
  The wizard prompts you for the prefix associated with the virtual IP.
The wizard starts running commands to create or update the ClusterService group. Various messages indicate the status of these commands. After running these commands, the wizard brings the ClusterService group online.
Verify that the gcoip resource that monitors the virtual IP address for inter-cluster communication is online.
```
# hares -state gcoip
```