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FUNCTION: Provides general-purpose computer services to branch personnel for program development, graphics, data processing, storage, and backup. Provides network connectivity to other Navy sites, to the DoD High Performance Computing centers, and to the Internet. The computational system enables leading-edge oceanographic numerical prediction research applicable to Navy operations affected by environmental variations at scales of meters to hundreds of kilometers and time scales of seconds to weeks. DESCRIPTION: The computational facilities comprise more than 150 UNIX-based computers, most on a parallel grid engine. Additionally, the infrastructurecontains more than 100 Windows-based systems. The core network is supported by Sun Microsystems and Linux based servers, interconnected via redundant gigabit Ethernet and 4-gigabit fiber channel switches, using the latest technology at both the operating system and network layers. Multi-tiered storage area networks (SAN) based on performance and availability total approximately 150 TB of immediate and fault-tolerant RAID storage. Ten-gigabit outside network connectivity between buildings hauls the aggragate traffic. Backups are performed on site using another tiered solution, SDLT600 and LTO4, all fiber connected. Outside access is protected by realtime adaptive firewalls and RSA SecurID and CAC authentication mechanisms. INSTRUMENTATION: • AMD Opteron workstations, Sun Solaris servers, Dell Xeon workstations and fileservers • Quantum ATL four-drive Super DLT and Scaler 12K tape libraries • 150 terabytes of centralized disk storage.