The Internet Of Things (IoT) Enabled by Resourceful Data Centre Thermal Management Strategies

800-834-4969 | www.chatsworth.com An Employee-Owned Company

The Internet Of Things (IoT) Enabled byResourceful Data Centre Thermal Management Strategies

Mitigate Risks – Reduce Power Usage – Increase Floor Space Utilisation

Presented at the BICSI United Kingdom Conference & Exhibition, 2016by Luca Rozzoni, Sr. Product Manager, Europe


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©Chatsworth Products 2016

800-834-4969 | www.chatsworth.com An Employee-Owned Company 3

The Internet of Things (IoT)

The Internet of Things (IoT) is the concept of connectivity between physical objects—devices, vehicles, buildings, appliances and other items—to the Internet.

This enables them to collect and exchange data.


IoT is Driving Many Changes in IT

Smaller data centres are consolidating to join forces or moving to more capable colocation providers.

As more devices get connected to the Internet, the need for reliable networks increases.


IoT is Driving Many Changes in IT

With high demand for shared facilities, data centre real state costs have soared.

Additionally, the increase of higher power loads as a result of consolidation and virtualisation has ignited power and cooling challenges in data centres across Europe.

Yet, data centre deployment strategies have remained the same


Data centres are more dynamic than ever and need to be able to withstand current and future needs to support business growth

Planning the Data Centre for the Future


What Does the Future Looks Like?

Source: Cisco Global Cloud Index, 2014-2019


IoT Requires Changes in Data Centre Deployment Strategies

An average cabinet within a medium to large data centre can deliver between 8 15 KW of power heat compared to 3-4 KW a few years ago.

More servers need to be deployed per single cabinet


DATA CENTER LAYOUT BEST PRACTICESData Centre Layout Best Practices


• Raised Floor • 18 to 24”• All perforated floor tiles at 25%

• Cabinet Placement • Straight rows• Back-to-back and front-to-front

(hot aisle – cold aisle)• Aligned with floor and ceiling

tiles

• CRAC Placement• Opposite walls across from

each other• Power & Cable Trays

• Overhead is ideal to avoid congestion

• Supply Air Temp • 12 C (Hot Aisle/Cold Aisle)⁰

Industry Best Practices


Energy Facts

Gartner predicts energy costs could soon consume as much as half of an organisation's IT budget.

Gartner estimates that 60% of a data centre's energy consumption is wasted.

“It is our No. 1 expense. I pay more for electricity than I do for rent!” –-Wayne Sawchuk, CEO and co-founder of ColoSpace.

Average data centre energy usage


Thermal Management

The process of effectively and economically creating or maintaining a complete environment that allows electronic equipment to operate within its recommended temperature range.


Not Just a Server Cabinet

New concept – The cabinet is an integral part of the Data Centre architecture and it’s complementary to Thermal Management Strategies

Old perception - The cabinet is a box for housing IT equipment. NOT Anymore!

Not just a storing frame

Why? Because the cabinet is the architectural feature in the data centre, securing the isolation between supply air and return air.


Not Just a Server Cabinet

Efficient thermal management beyond current best practices opens the doors for optimised power and cooling efficiency.


Limitations of Hot Aisle/Cold Aisle by Using Traditional Cabinets

• Bypass airflow under the cabinets• Hot air recirculation from the hot aisle into the cold aisle


Poor Data Centre & Cooling

Insufficient cold air delivered through raised floorRecirculation and mixing of source air and return air

Pre-cools return air temperature

Forces cooling units to operate at lower efficiencies

Retains a lower chilled water temperature

Reduces the opportunity for economisation…ALL ADDING COST!

Increasing the return air temperature provides more efficient CRAC performance Every 1°C increase in the supplied chilled water

yields 4% saving in cooling (ASHRAE 2005)


Passive Cooling®

Vertical Exhaust Duct System

Supports extreme heat loads – 30kW and above

Prevents hot and cold air from mixing within thecabinet

Prevents hot exhaust air from recirculating over or around the cabinet and entering front of equipment

Delivers uniformly cold intake air temperatures toall equipment

Maximises efficiency of cooling unit


4. Air flows through the chimney to the ceiling plenum, which efficiently draws the hot air out of the cabinet!

3. Low pressure area forms along the back side of cabinet. and pulls hot exhaust air from the other servers into the stream.

2. Exhaust air from bottom server is turned and increases in velocity as it rises.

1. Chilled air is provided and pulled into the server.

What Makes it Work?Vertical Exhaust Duct System


Passive Cooling Beyond Best Practices

• Creates higher supply-to-return temperature differences (ΔT’s).

• Increases CRAC cooling capacity 2X to 3X, allowing use for higher equipment densities and energy cost savings.

• Equalises room temperature, creating a constant temperature situation.

• Allows for consistent equipment intake temperatures from top to bottom across the cabinet.

• Allows increased room temperature and higher set-points on cooling equipment and chilled water temperatures, for more free cooling hours using low-cost economisers.


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Traditional Hot Aisle – Cold Aisle layout in a mixed environment of HD and LD cabinets.

Changing the Cabinet Paradigm:Supports 4X Higher Heat and Power Densities

Cabinets 2.5 to 3kW per cabinet



Cabinets 20kW per cabinet

Floor Tiles

Floor Tiles

Floor Tiles

Hot Spots

Inconsistent Temperatures


Efficient Thermal Management


No Hot Spots Ideal

consistent temperature is created with

PASSIVE COOLING solution!

It’s SIMPLY EFFICIENT!

Changing the Cabinet Paradigm:Supports 4X Higher Heat and Power Densities


Going Beyond Best Practices

TYPICAL BETTER BEST

Ducts remove hot air from the cabinet and

room.

Installing air segregation

accessories helps.

Air recirculates inside the cabinet and into the room.


Passive Cooling ApproachesMitigate Risks – Reduce Power Usage – Increase Floor-Space Utilisation

Cabinet Level Containment(Vertical Exhaust Duct)

Cold Aisle Containment (CAC)

Hot Aisle Containment(HAC)


Case Study


1,605 square feet600kW IT load (374 watts per square foot)

60 cabinets6 CRAH units (N+1)

70 raised floor4.8m slab-to-slab vertical space

Overhead network cable distributionOverhead power bus distribution

25% open floor tile in front of each cabinetFiller panels and air dams (or equivalent)

No holes in floor except designated perforated floor tiles

The Data Centre


Optimised Hot Aisle – Cold Aisle


Optimised Hot Aisle – Cold Aisle

Features Optimised HAC/CAC Passive Cooling Solution

Chilled water loop temp 8°C 18°C

Supply air 12°C based on 22°C set point on return air

23°C based on 23°C set point on return air

Air handlers operate 80% capacity 73% capacity

Maximum inlet temp range

14 – 26°C 25 – 26°C

CRAH fan energy 28.8 kW or 252,288 kW hours/year

21.6kW or 189,216 kW hours/year

Chiller energy 1,184,002 kW hours/year 725,678 kW hours/year


Passive Cooling Solution


Standard optimised data centreair handler fan energy 252,288 kW hours

chiller plant energy 1,184,002 kW hoursTotal cooling energy 1,436,290 kW hours

Data centre with Vertical Exhaust Ductair handler fan energy 189,216 kW hours

chiller plant energy 725,678 kW hoursTotal cooling energy 914,894 kW hours

Vertical Exhaust Duct savings = 521,395 kW hoursEuro 57,353 @ Euro 0.110 per kW hour per year

Annual Energy Savings


Impact of Increased FloorSpace Utilisation

• 150 square metres• 600kW IT load (Total IT load)• 60 cabinets (10KW per cabinet)

• 150 square metres• 600kW IT load (Total IT load)• 24 cabinets (25KW per cabinet)

Server Cabinets

10-1

2 kw

20-2

5 kw

Optimised hot/cold Aisle Passive Cooling


Impact of Increased FloorSpace Utilisation @ 10Kw per cabinet


Impact of Increased FloorSpace Utilisation @ 25Kw per cabinet


Thermal Management Benefits

• Avoid unnecessary CAPITAL expenditure• Reduce OPERATIONAL overhead• Maximise CAPACITY utilisation• Increase overall EFFICIENCY of the data centre


Conclusion


IoT Requires Effective ThermalManagement Strategies

• Internet of Things is pushing the current boundaries with a prolific adoption of smart technologies

• The expectation and on-demand usage of smart technologies is soaring

• IT Networks that are willing to support the rapid expansion of IoT need to be smarter and function more efficiently or the costs associated with it won’t be justified

• Reducing power and cooling consumption alongside with improved space utilisation can yield cost advantages

• Consider a highly efficient architecture that can support Passive Cooling as a vehicle to increase overall data centre efficiency and embrace the future of IoT


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The Internet Of Things (IoT) Enabled by Resourceful Data Centre Thermal Management Strategies