Aomori Cold Climate Extreme Data Center

Name: Aomori Cold Climate Extreme Data Center
Address: Iyasakadaira-1-120 Obuchi, Rokkasho, 039-3212, JP

Iyasakadaira-1-120 Obuchi, Rokkasho, 039-3212, JP

Metro: Rokkasho, JP Country: Japan Region: Asia

Colocation space

1,600

m²

Chilled water piped under a pile of snow does much of the cooling here. The Rokkasho site, in Kamikita-gun in Aomori Prefecture, pairs outside-air free cooling with snow-and-ice cooling and holds mechanical air conditioning in reserve rather than in use, for a design PUE below 1.2. Two modular server buildings and an office sit inside the Mutsu-Ogawara development district on base-isolated foundations, with 1,600 m2 of server-room floor across 160 racks, expandable in blocks of 80. Racks are 47U and rated to a tonne, provisioned at 6 kVA as standard over two 30 A circuits at 100 V and up to 24 kVA on 200 V single- or three-phase supply, with circuits of up to 10 Gbps offered. The building was finished on 7 December 2015 and opened for service that January. The company that built it filed for civil rehabilitation on 2 March 2020 with about 2.7bn yen of liabilities, and Aoi Mori Data Solution was incorporated on 22 July 2020 to take the site on.

Facility Specifications

Site information

Colocation space: 1,600 m2 of server room across 160 racks
Power density: 6 kVA (about 6 kW) standard, 24 kVA (about 24 kW) maximum, per 47U rack

Power & cooling

Cooling: Outside-air free cooling with snow-and-ice chilled water; design PUE below 1.2

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Location

Interactive map

Frequently asked questions

How is the Rokkasho facility cooled?

Outside-air free cooling combined with snow-and-ice cooling, in which chilled-water pipes run beneath an on-site snow pile. Mechanical cooling is held as backup and the design target is a PUE below 1.2.

How much power will a single rack take?

6 kVA as standard, over two 30 A circuits at 100 V, rising to 24 kVA on a 200 V supply. Racks are 47U and rated for a tonne of equipment.

Which company runs the site now?

Aoi Mori Data Solution, incorporated on 22 July 2020 after the original operator entered civil rehabilitation proceedings that March with roughly 2.7bn yen of liabilities.

What does the operator's JDCC reference mean?

It is a declaration of conformity with the Japan Data Center Council's Tier 3 facility standard, with parts to Tier 4. That is a self-assessment against a published standard, not a certificate issued by an awarding body.