Choose between running all tests or running selected tests. The tests include Inventory tasks, Network tests, Storage tests, ...

Choose between running all tests or running selected tests.  The tests include Inventory tasks, Network tests, Storage tests, and System Configuration tests.  Microsoft supports a cluster solution only if the complete configuration (servers, network, and storage) can pass all tests in this wizard. In addition, all hardware components in the cluster solution must be "Certified for Windows Server 2008".