Each QXS system excels in supporting demanding video workflows by being tuned to deliver high levels of sequential I/O performance. Delivering this performance are highly dense 2U and 5U chassis options, offering up to 5.4 PB of capacity per system.Relative to other storage arrays, Quantum QXS systems are available in a variety of configurations, and seamlessly support additional expansion chassis when needed. Due to the unique ability to simultaneously support online and offline workflows in one global namespace when used with the Quantum StorNext® file system, customers can greatly improve the return on their storage investments. With multi-core processing, active-active controllers, and separate paths for internal management and external data access, Quantum QXS has been engineered with high availability in mind. And it has proven this reliability through extensive in-house testing, as well as at the world's largest enterprises.