Brian Donowho gave a talk about how cabinets influence the thermal dynamics of the data centre.

He showed how Koldlok Brush Grommets, reduce bypass airflow (information on Koldlok Guide part 1 and Koldloks Guide part 2) and then explained how his range of Water Cooled Cabinets can help reduce the heat in your data centre.

for those of you who could not make it to the BICSI conference held in Citywest, Dublin, Ireland. The full presentation can be downloaded here.

The_Cabinet’s_Place_in_the_Data_Centre_for_Thermal_Management

The guys from ADC Krone gave a well received talk on Data Centre Design Considerations and how there range of products can help.
They also discuss pratical considerations such as Copper and Fibre Positioning in the Data Centre and the resiliance of a data centre in terms of the different tiersTier 1 - 99.671% Uptime

Tier 2 - 99.741% Uptime

Tier 3 - 99.982% Uptime

Tier 4 - 99.995% Uptime

For those of you who could not make the lecture held during the BICSI conference held in Dublin, Ireland this year, a pdf document is attached which contains the presentation given.

Data_Centre_Design_Considerations_ADC_Krone

The guys at CIX.ie have published an interesting white paper that deals with how they plan to maximise the Air Conditioning at their new data centre facility in Cork, Ireland

1) Utilise Free Cooling - By taking advantage of the of the low out-door temperatures in Ireland.

2) Maximise Chilled Water Temperature

3) Eliminate Water Mixing

4) Eliminate Air Mixing - By utilising a cold aisle containment system (the opposite of the more common hot aisle containment system).

5) Utilising a low resistance slow speed air path - by taking advantage of the large under floor void and the high ceiling space.

6) Minimise humidification

The full white paper can be found here http://www.cix.ie/air-conditioning-efficiency-at-the-cix-data-centre/

We would also recommend that they fit Koldolk Cable Grommets to reduce by-pass air loss and by using the plenaform under floor air barrier system to direct the cold air to exactly where it is needed.

We look forward to following the progress of the new Data Centre Build.

This is Part 2 of our guide to the Koldok range of Products

Part 1 can be found here

The KoldLok Surface Mount (Model 2020) is for existing holes with cables already in place.

It splits apart to encircle the cables and then snaps together as one piece. The unit is then adhered to the top of the tile with the included adhesive mounting kit.

The KoldLok Surface Mount offers all the features of the Integral (with the exception of the NFPA requirement), but with the added benefit of easily sealing holes without having to disconnect existing cabling.

Since it is mounted on top of the tile, it seals any size or configuration of opening in the tile up to10″ x 7″ in size. The KoldLok Surface Mount L (Model 2030) and XL, (Model 2040) include metal plates for sealing larger openings.

The KoldLok Surface L seals openings up to 10″ x 10″ and the XL seals openings up to 10″ x 13″.

Koldlok Split Surface Mount - Raised Floor Grommet - Model 2020 - Technical PackageKoldlok Split Surface Mount - Raised Floor Grommet - Model 2020

Koldlok Split Surface Mount - Raised Floor Grommet - Model 2030

Koldlok Split Surface Mount - Raised Floor Grommet - Model 2030 - Technical Package

Koldlok Mounted Xtra-Large Raised Floor Grommet Model 2040- Drawing

Koldlok Surface Xtra-Large Mount Raised Floor Grommet Model 2040 - Technical Package

Guide to Koldloks - Part 1

The KoldLok Integral (Model 1010) is for new cable cut-outs and is designed to seal openings before any equipment has been installed on the raised-floor tile.

The KoldLok Integral sits flush with the floor into an opening approximately 9″x6″ or 235mm x 172mm .

The benefits and features of the Integral include a penetrable seal that allows re-cabling with automatic re-sealing, static dissipative properties, and compliance with NFPA requirements to trim cut metal edges of raised-floor tiles. It also assists gas fire suppression systems.

KoldLok also offers the Split Integral (Model 3030) for existing cabling in raised-floor tiles where the rack clearance is too low to accommodate a Surface Mount unit.
Special Features of the Integral Units

• The Split Integral Grommets allow tiles to be moved without capturing cable
• The Grommets integrate with the raised-floor static dissipation system
• 32 square inch usable cabling area accommodates a variety of cabling requirements, including 100 amp power connectors
• The Grommets satisfy NFPA 75 Section 5-4.4 requirement by self-dressing the raw metal edges of raised-floor tile cable cutouts
• The Grommets contain no loose or partially fastened parts, which can become separated or fall through the raised floor.
• Compliant with the directive that restricts the use of certain hazardous substances in electrical and electronic equipment (RoHS)

Koldlok Integral (Model 1010) Raised Floor Grommet - Drawing

Raised Floor Grommet - Technical Package.zip

Koldlok Split Integral (Model 3030) Raised Floor Grommet - Technical Package.zip

Koldlok Split Integral Raised Floor Grommet - Drawing

The higher heat generation of new IT and telecommunications equipment contributes to hot spots in data centres. Due to poor cooling airflow and improper cooling unit utilisation, the ability to reliably cool equipment has become issue in the majority of these data centres. In a study conducted by The Uptime Institute(r), over 70% of conditioned air was not properly cooling the equipment. In addition, air intake temperatures at 10% of the racks exceeded published guidelines for maximum server reliability.
Click here to download The Uptime Institute Whitepaper

The higher ambient temperatures typically found in equipment housed at the top of racks cause reliability “ghosts” and computing outages. Heat-related outages have a dramatically negative impact on business operations—particularly mission critical applications that rely on “always on” data centres. Information outages can bring a business to its knees!
Cable cutouts waste conditioned airflow. This lost conditioned airflow is called Bypass Airflow.
Reclaiming Bypass Airflow by sealing unmanaged openings can help resolve this problem. KoldLok Raised-Floor Grommets have become the “industry standard” for effectively sealing cable cutouts. They are recommend by equipment manufacturers such as IBM, Dell, HP and Sun and by Independent Professional Organisations such as the Uptime Institute.
KoldLok Product Benefits

KoldLok offers a suite of high-quality products that seal unmanaged raised-floor openings and self-seal around cables and conduits to improve computer room reliability.Benefits include:

• Sealing effectiveness up to 98% of cable cut out air losses
• Increased under-floor static pressure
• Increased airflow through perforated floor tiles
• Enable precision delivery of airflow to equipment cabinet air intakes
• AC incapacity from cooling exhaust air instead of computing technology is minimized
• Bleed-off static charge build up on cables to raised-floor conductive surface

Keywords for this article

Koldlok, Hot-Spot, Uptime Institute, Bypass Airflow, Coldlock, Coldlok, Koldlock