it data center guideline.pptx

7/27/2019 IT Data Center Guideline.pptx

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IT Data Center QA & Specification

Guideline
http://localhost/var/www/apps/conversion/tmp/scratch_2//fileserver2/network%20operation/QA/Study%20material/IT%20Data%20Center/IT_Data_Center_Guideline.docxhttp://localhost/var/www/apps/conversion/tmp/scratch_2//fileserver2/network%20operation/QA/Study%20material/IT%20Data%20Center/IT_Data_Center_Guideline.docx


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Objective:

To prepare a complete & structured guideline for IT datacenterwhich will also provide standard working reference on planning ,implementation & operation stage.

IT DATA CENTER QA & SPECIFICATION


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Power

AC powerSubstation, Generator, BBT, MDB, COS, Modular

distribution, light & Socket

DC power Rectifier/Inverter, UPS, Battery

Grounding & Surge protection

Cooling

AFFS Server room, Substation & Generator roomLabeling Equipment & Cable Labeling standard

CablingSignal & Optical cable management system

Power & Grounding cable management system

Drawing & Document

Asset Tracking

House KeepingITDC site preparation Server room preparation, Raise floor, ROXTEC, EQ frame

Cabinet Installation

Checklist QAT, Expansion/ Integration, Preventive Maintenance

Area of Influence under the Guideline


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Highlights of Cooling Guideline

Guidelines Considers

New Data Center

Existing Data center Improving Cooling Efficiency

Solution for High dense Server

Reference:

TIA: Telecommunications Industry Association

ETSI: European Telecommunications Standards Institute

ASME: American society of mechanical engineers

Mobile Operator: DTAC, Thailand

Products:

Emerson Network Power American Power Conversion (Schneider Electric) SUN Microsystems (Oracle Corporation)
http://localhost/var/www/apps/conversion/tmp/scratch_2//fileserver2/network%20operation/QA/Study%20material/IT%20Data%20Center/ANSI%20Data%20Center%20Guideline.pdfhttp://localhost/var/www/apps/conversion/tmp/scratch_2//fileserver2/network%20operation/QA/Study%20material/IT%20Data%20Center/ANSI%20Data%20Center%20Guideline.pdfhttp://localhost/var/www/apps/conversion/tmp/scratch_2//fileserver2/network%20operation/QA/Study%20material/IT%20Data%20Center/ANSI%20Data%20Center%20Guideline.pdfhttp://localhost/var/www/apps/conversion/tmp/scratch_2//fileserver2/network%20operation/QA/Study%20material/IT%20Data%20Center/Back-Up_TM_15_09_121.pptxhttp://localhost/var/www/apps/conversion/tmp/scratch_2//fileserver2/network%20operation/QA/Study%20material/IT%20Data%20Center/SmartAisle%20Brochure%2020100105.pdfhttp://localhost/var/www/apps/conversion/tmp/scratch_2//fileserver2/network%20operation/QA/Study%20material/IT%20Data%20Center/SmartAisle%20Brochure%2020100105.pdfhttp://localhost/var/www/apps/conversion/tmp/scratch_2//fileserver2/network%20operation/QA/Study%20material/IT%20Data%20Center/Back-Up_TM_15_09_121.pptxhttp://localhost/var/www/apps/conversion/tmp/scratch_2//fileserver2/network%20operation/QA/Study%20material/IT%20Data%20Center/ANSI%20Data%20Center%20Guideline.pdfhttp://localhost/var/www/apps/conversion/tmp/scratch_2//fileserver2/network%20operation/QA/Study%20material/IT%20Data%20Center/ANSI%20Data%20Center%20Guideline.pdfhttp://localhost/var/www/apps/conversion/tmp/scratch_2//fileserver2/network%20operation/QA/Study%20material/IT%20Data%20Center/ANSI%20Data%20Center%20Guideline.pdf


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Fig: Concentrate high-density racksFig: Spread out the high-density racks Fig: Concentrate high-dense rowFig: Spread out the high-dense row

Fig: The air inlet and outlet characteristics of cabinet

Spread out the high dense server


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If Aircon unit placement at Cold aisle:

Hot air from the hot aisles crosses over the racksinto the cold aisle when returning to the ACs,causing a mixing of hot and cold air that increases

the temperature of supply air to the rack fronts.

Recirculated aira mixing of hot and cold airwillincrease at AC end.

Align AC units with the air return path (hotaisles).


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Misplacement of perforated tiles impacts:Recirculated air Bypass air flow Negative pressure flow

Floor vents placed too close to AC units

produce negative pressure due to under floor

high air velocity, causing air from the room to

be drawn back under the floor

AC

AC

AC

Recommendation:Perforated Tiles placementAlways at cold aisle Never at vacant place Minimum distance ( 1.5 meter) from air con


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Unused vertical space in rack enclosurescauses the hot exhaust from equipment to takeashortcutback to the equipments intake.

Also avoid the unorganized cablemanagement of the cabinet which may hamperthe cooled air flow.

Fig: Usages of filler

Fig: Organized cable will not hampered air flow

Recommendation:

unused vertical space in rack must beenclosed through filler.

Organized cable of the cabinet as perguideline and product manual
http://localhost/var/www/apps/conversion/tmp/scratch_2//fileserver2/network%20operation/QA/Study%20material/IT%20Data%20Center/New%20Microsoft%20Office%20PowerPoint%20Presentation%20(2).pptxhttp://localhost/var/www/apps/conversion/tmp/scratch_2//fileserver2/network%20operation/QA/Study%20material/IT%20Data%20Center/New%20Microsoft%20Office%20PowerPoint%20Presentation%20(2).pptx


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To measure the ambient temperature and humidity of the data center, may followthese guidelines:

Place sensors in cold aisles, where cold air outlets provide conditioned air tothe systems.

Hot-aisle measurements will be typically out the systems recommendedoperating ranges and therefore are not a valid indication of the requiredtemperature and humidity levels.

Place sensors 10 to 15 feet (3 to 4.5 m) apart from AC or in front ofeveryfourth rack in the aisle.

Place sensors in the middle of the aisle, between the rows of racks.

Place sensors 4.9 feet (1.5 m) above the tiled floor.


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Containment of cold aisle:Using flexible clear plastic barriers to seal the

space of tops of the rack, can greatly improve hot

aisle/cold aisle isolation.

To eliminate short-circuiting (the mixing of hot

and cold air) and hot spot.

These changes should reduce fan energy

requirements and could result in an energy savings

on the cooling unit side (15% ~20% ).

Energy Saving 15% ~20%Reference: -

Emerson Network Power

Pacific Gas And Electric Company

Energy Saving Methodology
http://localhost/var/www/apps/conversion/tmp/scratch_2//fileserver2/network%20operation/QA/Study%20material/IT%20Data%20Center/New%20Microsoft%20Office%20PowerPoint%20Presentation%20(3).pptxhttp://localhost/var/www/apps/conversion/tmp/scratch_2//fileserver2/network%20operation/QA/Study%20material/IT%20Data%20Center/New%20Microsoft%20Office%20PowerPoint%20Presentation%20(3).pptxhttp://localhost/var/www/apps/conversion/tmp/scratch_2//fileserver2/network%20operation/QA/Study%20material/IT%20Data%20Center/New%20Microsoft%20Office%20PowerPoint%20Presentation%20(3).pptxhttp://localhost/var/www/apps/conversion/tmp/scratch_2//fileserver2/network%20operation/QA/Study%20material/IT%20Data%20Center/New%20Microsoft%20Office%20PowerPoint%20Presentation%20(3).pptxhttp://localhost/var/www/apps/conversion/tmp/scratch_2//fileserver2/network%20operation/QA/Study%20material/IT%20Data%20Center/New%20Microsoft%20Office%20PowerPoint%20Presentation%20(3).pptxhttp://localhost/var/www/apps/conversion/tmp/scratch_2//fileserver2/network%20operation/QA/Study%20material/IT%20Data%20Center/New%20Microsoft%20Office%20PowerPoint%20Presentation%20(3).pptx


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Hot spot is created due to:

Concentration of high heat dissipating nodes in a

same location

Huge amount of unorganized under raise floor

cables, which prevents proper aeration. Inadequate cooling system.

Solution: Containment solutionAir Distribution Unit.

In-Row Air-Handler Unit

Cooling loads within racks can be improved by the

retrofitting of fan-assisted devices that improve airflow and

can increase cooling capacity per rack.

Option 1: Air Distribution Unit Option 2: In Row Air Handler Unit


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Options:High-Density Pods in a Low-Density Data Center

Autonomous Cabinet System

Autonomous Cabinet System : The ACS is a

complete data center in a box, incorporating

cooling, power, fire and security systems

required for very high-density loads. The cooling

unit is situated within the enclosure, thus

ensuring the maximum effectiveness of cool air

delivery to the rack-based equipment.

Fig: High-Density Pods in a Low-Density Data Center
http://localhost/var/www/apps/conversion/tmp/scratch_2//fileserver2/network%20operation/QA/Study%20material/IT%20Data%20Center/New%20Microsoft%20Office%20PowerPoint%20Presentation%20(4).pptxhttp://localhost/var/www/apps/conversion/tmp/scratch_2//fileserver2/network%20operation/QA/Study%20material/IT%20Data%20Center/New%20Microsoft%20Office%20PowerPoint%20Presentation%20(4).pptxhttp://localhost/var/www/apps/conversion/tmp/scratch_2//fileserver2/network%20operation/QA/Study%20material/IT%20Data%20Center/New%20Microsoft%20Office%20PowerPoint%20Presentation%20(4).pptxhttp://localhost/var/www/apps/conversion/tmp/scratch_2//fileserver2/network%20operation/QA/Study%20material/IT%20Data%20Center/New%20Microsoft%20Office%20PowerPoint%20Presentation%20(4).pptxhttp://localhost/var/www/apps/conversion/tmp/scratch_2//fileserver2/network%20operation/QA/Study%20material/IT%20Data%20Center/New%20Microsoft%20Office%20PowerPoint%20Presentation%20(4).pptxhttp://localhost/var/www/apps/conversion/tmp/scratch_2//fileserver2/network%20operation/QA/Study%20material/IT%20Data%20Center/New%20Microsoft%20Office%20PowerPoint%20Presentation%20(4).pptxhttp://localhost/var/www/apps/conversion/tmp/scratch_2//fileserver2/network%20operation/QA/Study%20material/IT%20Data%20Center/New%20Microsoft%20Office%20PowerPoint%20Presentation%20(4).pptxhttp://localhost/var/www/apps/conversion/tmp/scratch_2//fileserver2/network%20operation/QA/Study%20material/IT%20Data%20Center/New%20Microsoft%20Office%20PowerPoint%20Presentation%20(4).pptx


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Redundancy is supportive in cooling systems to permit maintenance of live systems and to ensure the survival of

the data center mission if an air conditioning device fails:

For higher density server, which is also highly business sensitivity, the redundancy approach is sustainable.

Row-oriented architecture provides redundancy at the row level.

This requires an additional or N+1 AC unit for that particular high dense & cooling sensitive row ( 12 kW

Server).

Recommendation:

Our recommendation at least one redundantcooling unit at row level where,

Business severity so high High restart time due to failure of cooling

High power consumption (> 12 kW) Row area @ 80% occupied

4 TonAC

4 TonAC

Hot

5 kW

Cold

3 kW

Hot

3 kW 4 kW

4 kW 3 kW

3 kW 5 kW

4 kW 4 kW

4 TonAC

4 TonAC

4 TonAC

4 TonAC

Hot

5 kW

Cold

3 kW

Hot

3 kW 4 kW

4 kW 3 kW

3 kW 5 kW

4 kW 4 kW

4 TonAC

4 TonAC

4 TonAC

4 TonAC

Hot

5 kW

Cold

3 kW

Hot

3 kW 4 kW

4 kW 12 kW

3 kW 5 kW

4 kW 4 kW

4 TonAC

4 TonAC

Fig: Example

4 TonAC

4 TonAC

Hot

5 kW

Cold

3 kW

Hot

3 kW 4 kW

4 kW 12 kW

3 kW 5 kW

4 kW 4 kW

4 TonAC

R. AC4 TonAC


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Some important checking and then also measurement

data analysis:Air conditioning unit: Measured supply and return temperatures

(Preferable difference > 8 C )

Room temperatures measurement

Rack temperatures and airflow measurement

Aisle & floor tile arrangement

Condition of subfloors

Fig: Room Temperature checking pointsFig: Rack temperature checking

Fig: Supply & Return Temperature of Aircon


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it data center guideline.pptx

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