Abstract: A cloud configuration system is described herein that provides the ability to dynamically reconfigure a set of computing resources to define a cloud into multiple separate logical cloud instances. The system includes a reconfiguration tool that reads an existing system and network configuration from a configuration store, allows the user to change the configuration into multiple logical systems, performs some syntactical checks, and stores the new configuration into the configuration store. The system also includes a validation tool that imports the existing and new configurations from the configuration store, determines what devices need to be changed in the network, and enables a deployment engine to proceed with the changes. The deployment engine applies each change until all changes are completed. The validation tool can then revalidate the post-deployment changes to make sure the new inventory is recognized and no existing setting is broken.