Install the Terracotta program files and license key on each machine in your array as described in Installing Software AG Products. The version of Terracotta software that you install on the Terracotta Server Array must be compatible with the version of the Terracotta client libraries that your webMethods product uses. For compatibility information, see Terracotta Compatibility with other Software AG Products. For a list of the platforms supported by Terracotta, see the “Server Information” section in the 4.1 Platform Support document.