Exadata's solutions can be disruptive to an organization as many of the existing roles become encompassed in one solution. From System Administration support, SAN support and Networking support all rolled into one engineered applicance. Incorporated a solution to optimize the Exadata performance features from cell offloading, HCC and support needs to be addressed in a precise manner to maintain long term sustainability of the environment.
NoSQL solutions can be typically used a cloud based virtualization model by most cloud vendors. Ingesting unstructured data that can be analyzed natively or materialized into a Exadata solution with traditional Data Warehouse techniques.