US Defence department builds the world’s biggest SAN

A Meta SAN that aggregates multi-vendor SANs is the key to the super-storage network

The US Department of Defence (DoD) is creating the world’s largest storage-area network by combining a number of separate networks into a gigantic 17,000-port Meta SAN monster.

The Meta SAN will store many petabytes (millions of gigabytes) of both administrative and mission-critical command and control data, and will be put together by Brocade and reVision, an IT consultancy.

The existing SANs have multi-vendor storage devices, and the Meta SAN will use securely connected end-points, virtualisation technologies, and other techniques to tightly control access to each storage device and safeguard its highly sensitive data. Critical data is stored on high-performance storage devices, whereas less sensitive information is saved on cheaper arrays, cutting hardware costs across the DoD’s agencies.

Brocade Professional Services will provide on-site engineering services for the storage infrastructure, and consultants from reVision will be in charge of integrating the component SANs. Shawn Landry, reVision’s chief technologist, says: “Given the DoD’s large port counts, aggregating the SANs of multiple DoD agencies could have been extremely time-consuming and complex without a certified Brocade specialist working with us onsite.”

The Meta SAN relies on Brocade’s SilkWorm 48000 Director Blade FR4-18i and 48000 Directors for Fibre Channel over IP (FCIP) routing, to link the service agencies’ geographically distributed SANs. This architecture ensures that any faults on one SAN will not impact on the others. The DoD can increase its storage capacity by adding new sub-SANs to Meta SAN without having to bulk-out existing SANs to unrealistic levels.

The Defence Information Systems Agency (DISA) is the IT backbone of the DoD. Almost every communication and piece of information the DoD uses to keep afloat during emergency situations rides on the networks and infrastructure DISA provides. DISA fields, operates and maintains the department’s Global Information Grid, its classified and unclassified intranet.

In May last year, the DoD set up a supercomputer SAN using SGI computers and drive arrays and Brocade SAN fabric boxes.

The DoD includes the US Army, Navy, Air Force, Coast Guard, National Guard, Reserve Forces and a multitude of other agencies in its vast organisation. Among other things, it is responsible for the New Orleans levees.

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