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Csc.Cooling Audit Results.V1.12 Jul 08
 

Csc.Cooling Audit Results.V1.12 Jul 08

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    Csc.Cooling Audit Results.V1.12 Jul 08 Csc.Cooling Audit Results.V1.12 Jul 08 Presentation Transcript

    • Results from Cooling Audit of CSC’s Data Center at Building 4, Raheja (IT) Park, Hyderabad Presentation to Kathir Palraj and Nageshwar Bandi Version 1 July 12, 2008
    • About This Presentation
      • Choice Solutions is submitting this report of findings and insights based on our power and cooling audit of IUCAA’s data center in Pune.
      • We notice non-uniformities in cooling vis a vis power requirements in one server room and over-provisioning of cooling in the other two rooms. There are hot spots in the first room, which, if not eliminated, will cause damages to the servers.
      • The current server rooms’ design is not per standards prescribed by the Uptime Institute. The new consolidated data center design should take note of the learning from this report (as the same equipment will be likely moving into the new data center).
    • Agenda
      • Audit Scope of Work
      • Air Flow Analysis
      • Relative Humidity Analysis
      • Temperature and Hot Spot Analysis
      • Cooling Vs. Power Analysis
      • Facility Observations and Recommendations
      • Sound Level Measurement
      • Conclusions and Next Steps
    • The Planed server room Sourced original diagram from form wall hanger
    • The Planed server room
    • The present server room
    • Racks
      • There are 6 Server Racks installed in the DC apart from 2 post Network racks.
        • APW Precedent make “Cool Rack”
        • IBM Server Rack
        • IBM Storage Rack
        • APW Precedent make “Cyber Rack”
        • Sun Rack
        • APW Precedent make “Cyber Rack”
    • APW Precedent make “Cool Rack”
        • The APW Precedent make “Cool Rack” is 42U 600x1200mm Deep enclosure.
        • This rack presently not having any Live Load.
        • The Rack is having Front Glass Door and Back perforated Door.
    • IBM Server Rack
        • The IBM Rack is 42U 640x1100mm Deep enclosure.
        • This rack presently aprox 90% Loaded .
        • The Rack is having Back perforated Door only No front door.
        • The Load Details are:
          • IBM i 570 Series server
          • IBM i 570 Series Expansion
          • IBM x 3550 Series server
          • IBM System Storage 3576
          • IBM System Storage 3576 Expansion
          • Etc.
    • IBM Storage Rack
        • The APW Precedent make “Cool Rack” is 36U 640x1100mm Deep enclosure.
        • This rack presently fully Loaded .
        • The Rack is having Back perforated Door only No front door Equipment Door is acting as front door.
        • The Load Details are:
          • IBM System Storage 3576
          • IBM System Storage 3576 Expansion
    • APW Precedent make “Cool Rack”
        • The APW Precedent make “Cool Rack” is 42U 600x1000mm Deep enclosure.
        • This rack presently not having any Live Load.
        • The Rack is having Front Glass Door and Back perforated Door.
    • Sun Rack
        • The SUN make Rack is 38U 600x1000mm Deep enclosure.
        • This rack presently not having any Live Load.
        • The Rack is having Front and Back perforated Door.
    • APW Precedent make “Cyber Rack”
        • The APW Precedent make “Cool Rack” is 42U 600x1000mm Deep enclosure.
        • This rack presently not having any Live Load.
        • The Rack is having Front Glass Door and Back perforated Door.
    • Agenda
      • Audit Scope of Work
      • Air Flow Analysis
      • Relative Humidity Analysis
      • Temperature and Hot Spot Analysis
      • Cooling Vs. Power Analysis
      • Facility Observations and Recommendations
      • Sound Level Measurement
      • Conclusions and Next Steps
    • Present Cooling Architecture – Chilled Air
    • Present Cooling Architecture – Hot Air PAC5 PAC4 PAC3 PAC2 PAC1
    • PAC Perameters
    • PAC Inlet Air Flow
    • PAC Discharge Air Flow
    • Access Floor Tiles
      • Tiles Used : HPL/ PVC/ceramic Type Cementitious Infill Steel Access Floor ( 600x600mm )
    • Access Floor Tiles
      • The ventilated Tiles used are having aprox 20% of overall perforation
    • Air Flow on Access Floor (Perforated Tiles)
    • Observations: PAC
      • PAC # 4 is running on Blower mode this Unit is helping PAC #2 for creating extra air presser but simultaneously it is decreasing the efficiency by pumping hot air returning from equipments and mixing with Chilled Air of working unit.
      • Discharge Air temperature of working Unit is less then 14 Degree C but the temperature coming out from Blower Mode is 19 degree. Perforated tiles are discharging mixed temperature near to 16 at server rack side of room and near to 19 at Network Rack side.
    • Observations: Floor Tiles
      • The air leakage from all the tiles joining in PAC Room.
      • The PVC attached to side corners of Tiles has come out.
    • Observations:
      • Air Leakage at PAC Room on Pipe cutouts.
    • Observations:
      • Air Leakage at PAC Room on cutouts and on wall joints.
    • Observations:
      • Air leakage in Data center at tile joints and from cutouts for Cable below the Rack
      • Due to this leakage hot Air is mixing with chilled Air reducing efficiency of PAC
    • Observations:
      • Tiles Alignment has disturbed resulting un even leveling and leakage on joints.
    • Observations:
      • Air leakage in Data center at tile joints
      • The PVC attached to side corners of Tiles has come out.
    • Perforated tiles placed on HOT Aisle
      • Chilled Air and Hot air mixing due to placement of ventilated tiles at HOT Aisle and cutouts for Cable below the Rack reducing the efficiency of PAC
    • Air Blockage
      • Under the raised floor there is multiple air blockage seen which is obstacle for Air flow in plenum.
    • Air Blockage
      • Under the raised floor there is multiple air blockage seen which is obstacle for Air flow in plenum.
    • Air Blockage
      • Under the raised floor two air plenum has been created, one at PAC side second at Server Room Side those has been partitioned by Steel sheet and Crotons sheets.
      • The static presser of PAC is dropping at PAC room resulting lass Air flow in Server room plenum.
    • Air Blockage
      • Under the raised floor there are network cable bundle found which is obstacle for Air flow in plenum.
    • Rodent Control
      • Rodent control is through : Mice traper.
    • Discharge Air Path
      • The Chilled Air for Racks re coming from ventilated tiles (600x600mm) placed allover the DC.
      • Total 49 tiles are placed out of which 32 tiles are open and 17 are blocked by paper and polythene.
    • Return Air Path
      • The return Air Path for PAC of HOT Air is from diffuser type Steel Grille (600x600mm)
    • Return Air Path
      • The return diffusers are placed in Cold aisle causing mixing Cold Air and Hot Air resulting reduced efficiency.
    • Agenda
      • Audit Scope of Work
      • Air Flow Analysis
      • Relative Humidity Analysis
      • Temperature and Hot Spot Analysis
      • Cooling Vs. Power Analysis
      • Facility Observations and Recommendations
      • Sound Level Measurement
      • Conclusions and Next Steps
    • PAC Inlet Humidity
    • PAC Discharge Humidity
    • Humidity Under Access Floor
    • Agenda
      • Audit Scope of Work
      • Air Flow Analysis
      • Relative Humidity Analysis
      • Temperature and Hot Spot Analysis
      • Cooling Vs. Power Analysis
      • Facility Observations and Recommendations
      • Sound Level Measurement
      • Conclusions and Next Steps
    • Insulation
      • The insulation used is rubber type under raised floor
      • The foil-faced insulation will provide batter efficiency
      • Chilled Air can travel longer with minimum change in temperature.
    • Present Cooling Architecture – DC Height 30 C 27 c 24 C 21C 18C 15C DC Height
    • PAC Inlet Temperature
    • PAC Discharge Temperature
    • Temperature Under Access Floor
    • Temperature on Access Floor (Perforated Tiles)
    • APW Precedent make “Cool Rack” Front Side 20.2 C, 65 RH 19.2 C, 64RH 18.3 C 64RH Back Side 20.3 C, 65 RH 19.6 C, 62 RH 19.3 C, 69 RH
    • IBM Server Rack Front Side 21.7 C, 60 RH 20.4 C, 62 RH 20.9 C 62 RH Back Side 24.1 C, 57 RH 27.9 C 57RH 19.7 C, 65 RH
    • IBM Storage Rack Front Side 21.7 C, 56 RH 18.9 C, 57 RH 21.5 C 53 RH Back Side 22.5 C, 59 RH 24.0 C 52 RH 19.5 C, 62 RH
    • APW Precedent make “Cyber Rack” Front Side 20.2 C, 65 RH 19.2 C, 64RH 17.8 C 64RH Back Side 20.3 C, 65 RH 19.6 C, 62 RH 19.3 C, 69 RH
    • Sun Rack Front Side 21.7 C, 60 RH 20.4 C, 62 RH 20.9 C 62 RH Back Side 24.1 C, 57 RH 27.9 C 57RH 19.7 C, 65 RH
    • APW Precedent make “Cyber Rack” Front Side 21.7 C, 60 RH 20.4 C, 62 RH 20.9 C 62 RH Back Side 24.1 C, 57 RH 27.9 C 57RH 19.7 C, 65 RH
    • Agenda
      • Audit Scope of Work
      • Air Flow Analysis
      • Relative Humidity Analysis
      • Temperature and Hot Spot Analysis
      • Cooling Vs. Power Analysis
      • Facility Observations and Recommendations
      • Sound Level Measurement
      • Conclusions and Next Steps
    • Cooling Units
      • The Configuration Used for Cooling is as:
      • Make : Stulz
      • Model : Cyber Air - ASD521ACW
      • Capacity : Total 53.2KW
      • Capacity :Sensible 49.5 KW
      • Air Flow : 14000M 3 /h
      • Compressor Absorber Power : 11 KW
      • Fan Absorber Power : 3.4 KW
    • Agenda
      • Audit Scope of Work
      • Air Flow Analysis
      • Relative Humidity Analysis
      • Temperature and Hot Spot Analysis
      • Cooling Vs. Power Analysis
      • Facility Observations and Recommendations
      • Sound Level Measurement
      • Conclusions and Next Steps
    • Dust particles
      • Dust particles found on equipments
    • Dust particles
      • Dust particles found on under raised floor
    • Dust particles
      • Dust particles found on under raised floor
    • Dust particles
      • Dust particles found on under raised floor
    • Dust particles
      • Dust particles found on equipments
    • Dust particles
      • Dust particles found on equipments
    • Dust particles
      • Dust particles found on top of Racks
    • Agenda
      • Audit Scope of Work
      • Air Flow Analysis
      • Relative Humidity Analysis
      • Temperature and Hot Spot Analysis
      • Cooling Vs. Power Analysis
      • Facility Observations and Recommendations
      • Sound Level Measurement
      • Conclusions and Next Steps
    • Sound Level
      • Quantification of hearing loss
      • Mild:
        • for adults: between 25 and 40 dB
        • for children: between 20 and 40 dB
      • Moderate: between 41 and 55 dB
      • Moderately severe: between 56 and 70 dB
      • Severe: between 71 and 90 dB
      • Profound: 90 dB or greater
    • Observation – Sound Level
    • Agenda
      • Audit Scope of Work
      • Air Flow Analysis
      • Relative Humidity Analysis
      • Temperature and Hot Spot Analysis
      • Cooling Vs. Power Analysis
      • Facility Observations and Recommendations
      • Sound Level Measurement
      • Conclusions and Next Steps