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a product manager at BAE Systems. “They need as much storage as they can get in as lightweight and as low-power footprint that they can get. They also need a solution that they can transport easily and ship around the world if needed, but that is also suitable to the data center.”

Network Attached Storage One storage architecture that is growing in popularity for military applications is called network attached storage (NAS). Many industry experts contend that this storage method brings greater efficiencies and utilities, especially for the military, when compared with two leading alternatives—direct attached storage (DAS) and storage area networks (SAN). DAS and SAN are typically deployed on dedicated infrastructures, while NAS shares infrastructure assets with other computing and storage assets. NAS has made efficiency strides beyond the capabilities of the other two alternatives, and also facilitates the portability of data storage capabilities for tactical applications. NAS architectures have been developed to remedy the shortcomings of direct attached storage, which dedicates storage assets to a particular computing node, noted Hittle. “DAS is like a home personal computer, which has the data storage as part of the computing device,” he said. “The DAS architecture has the tendency to create data silos that are not accessible to the rest of the enterprise. That is exactly what DoD is trying to get away from.” NAS, on the other hand, enables a client to act as storage for numerous kinds of data protocols, including SMB, NFS, HTTP, FTP and HDFS. “It can also handle data moving across different kinds of computing platforms, such as Linux and Windows as well as Apple and mobile operating systems,” said Hittle. EMC fields an Isilon product line that makes use of a technology called scale-out NAS. Scale-out NAS represents an improvement in data management over the traditional NAS architecture, according to Hittle. “With traditional NAS, requests for access to storage come in to a controller that manages a stack of disks,” he explained. “This presents a management problem and a scaling problem due to the issues associated with how many disks a controller can effectively manage before reaching peak performance. Each controller manages a limited amount of disk storage access.” EMC Isilon’s scale-out NAS approach allows storage to be accessed across the enterprise by any client over standard protocols. “With controllers, you can scale up by adding more disks. With our approach, you can add additional nodes to a cluster. Each node is selfcontained with computing capacity, disk storage and network connectivity, and each node is typically interconnected via a high-speed backbone connection. When an organization has additional storage requirements, they add additional nodes to the cluster. That’s scaling out, as opposed to scaling up. Computational performance is added along with storage capacity,” said Hittle. EMC Isilon’s OneFS operating system for disk storage uses software-defined storage capabilities to enhance the efficiency of storage capacity. “OneFS provides flexibility for users to define policies for managing and storing data and protecting them at different levels,” said Hittle. “This enables easy scaling from a few terabytes to 20 petabytes. The data is broken down into chunks and stored on multiple disks. This also enables file protection and requires fewer, typically one, backup redundant file copies.” www.MIT-kmi.com

Other types of storage configurations, such as the traditional redundant array of independent disks (RAID), require four or more redundant copies. OneFS also enables higher disk utilization rates. RAID-based storage typically averages 30 to 40 percent utilization, according to Hittle, while optical environments typically achieve 50 to 60 percent. “Isilon typically achieves 80 to 85 percent storage utilization,” he said. EMC’s scale-out NAS environment is specifically designed to accommodate unstructured data such as the audio, video and imagery files vitally important to military intelligence. “Users access enterprise storage as opposed to a direct attached storage silo,” said Hittle. “The military has been struggling to eliminate silos to share information and create a more collaborative environment.”

Preservation Platform HDS Federal’s approach to big data storage concentrates on minimizing the costs and maximizing the efficiencies of long-term data storage. “Not all data needs to be living in the higher-speed and higher-performing storage tiers,” said Houston. “Lower-priority data should be driven down to lower tiers for archiving.” The Hitachi Digital Preservation Platform (HDPP) emphasizes pushing the data stored on traditional spinning disks, together with their metadata, down to an optical storage environment for archiving. “The data can survive in that environment for 1,000 years and not have the degradation experience with spinning disks,” he explained. HDPP represents a multi-tiered storage environment, which can include disks and flash media as well as optical storage. “But all the tiers have a single management interface through the entire stack,” said Houston. “It doesn’t matter where or on what kind of media the data is living.” The optical storage medium has the effect of reducing the power requirements of data storage as well as its costs, according to Houston. “The technology keeps advancing. The new generation of optical disks allows data preservation for 1,000 years with multiple petabytes of data in a single rack using 1 kilowatt of power. When you are looking at preserving large volumes of data for long periods of time, you need to look at costs. It costs a lot less to preserve data on optical media than on spinning disks.” Tactical applications require large volumes of data to be stored in ruggedized packages that are easy on size, weight and power. Trenton Systems’ TSS5203 rugged military storage server, for example, is designed to enable big data storage capacities for military applications that require a high degree of performance, security and system longevity. The server is built with COTS hardware in a modular design configurable for individual applications. The TSS5203 has been configured to store upwards of 100 terabytes in a single box. “There are a number of issues that we address with our military systems,” said Jim Renehan, director of marketing and business development at Trenton Systems. “Military end-users are gathering a lot of different data from many different sources. The single box includes a distributed and modular architecture so that it can run different types of applications and handle different levels of security classifications. “We use standardized backplanes and COTS plug-in cards, but we can mix and match them and create different kinds of configurations MIT 18.5 | 5

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Mit 18 5 final rev  

http://www.kmimediagroup.com/images/magazine-pdf/MIT_18-5_Final_rev.pdf

Mit 18 5 final rev  

http://www.kmimediagroup.com/images/magazine-pdf/MIT_18-5_Final_rev.pdf

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