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Cisco unveils dual role-data centre

Cisco this week opened up a new data centre in Research Triangle Park, N.C., with a dual role: application development and disaster recovery (DR) for its production data centres in Texas, the company said.

According to Cisco, the 2.8 Megawatt, 18,500 square foot retrofitted data centre is a Tier 2 facility, meaning it isn’t as resilient as Tier 1 facilities. It’s pretty efficient though, according to Cisco, which put its Power Usage Efficiency measure at 1.4, compared to 1.34 at the company’s Allen, Texas, facility and 1.9 in Richardson, the two data centres the new RTP1 facility will initially back up.

Cisco plans to have RTP1 serve as a production backup for other Cisco global data centres, said the company’s IT official Jim Cribari. It’s also a showcase of Cisco technology and implementation techniques for customers, and to prove that they do not need a separate physical facility for DR, Cisco said.

“It shows customers how to maximise their investment in DR and application development environments,” Cribari said.

RTP1 is the oldest building in Cisco’s Research Triangle Park campus, the company said. As a data centre, it has a capacity of 438 racks housing up to 5,000 Unified Computing System (UCS) blades and 125,000 virtual machines, with an average usage of 6.5 kilowatts per rack, Cisco representatives added. The facility is both air and chilled water cooled – “water-side economisers” allow the mechanical chillers to cycle off when air can be used to cool the facility, it said. RTP1 also has a hardened floor instead of a raised floor – all cabling and other conduits and services are on overhead rails, according to Cisco.

The backup capability is based, not surprisingly, on Cisco’s UCS and Nexus switches, and NetApp’s SnapManager mirroring and replication software. Service profiles defined in UCS servers enable the system to effectively emulate the data centre workload, while virtual routing and forwarding (VRF) capabilities in the Nexus switches mimic the primary data centre’s infrastructure, Cisco said.

According to the company, RTP1 houses a 40-blade UCS cluster supporting 800 to 1,000 VMs, which in turn house service profiles defined in advance to back up a data centresite. All UCS chassis are connected by Cisco’s Unified Fabric architecture to top-of-rack Nexus 6100 switches, which are then connected to Nexus 7000 switches in the network backbone. The Nexus switches also connect Fibre Channel traffic to the storage fabric, Cisco added.

The Texas data centres crunch 1,300 production applications, but not all can be backed up simultaneously; Cisco IT defines four categories of criticality for the applications, accommodating the most critical first and then the less critical, as capacity allows, the company concluded.

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