Simplicity is a key word for complex systems and large data centers, capturing, storing and serving huge amount of data, are the perfect illustration of that. At every scale but especially for large environment, having a very simple intuitive and efficient UI is a must. For sure, a good CLI (Command Line Interface) is also a perfect companion but the UI must be present and offered from the start giving all capabilities to provision, configure, manage and operate the platform.
OpenIO changes that and offers with the standard support package the full features Web GUI. No need to do extra stuff with other tool. In addition to that, OpenIO provides a REST interface to make things even more integrated and transparent with market leader management solution. This is for instance the case with Puppet Labs product.