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space planning, security, cabling and other design considerations for a computer room /datacenter
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DATA CENTER
Computer Room
Planning
Jeffrey Lam RCDD
What is a data center?
Data Centers
– “nerve centers” of the
organisation
– centralize & consolidate IT
resources
– support critical business
operations.
– provide uninterrupted service to
mission critical applications
• 7 x 24 x 365 availability
• Power & network redundancy
• Physical & network security
• Environmental monitoring
• Air-conditioning / thermal mgt
• Fire suppression systems
Different Tiers of data centers
Data center space is precious, use it wisely.
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UPSUPS UPSUPS UPSUPS
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Operating ConsoleOperating Console
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TYPICAL TYPICAL
Computer RoomComputer Room
EIA/TIA 942 recommendations for computer room
• Minimum height = 2.6m
• Minimum door = 1m wide, 2.13m high
• Minimum floor loading = 7.2kPa (distributed)
• Recommended floor loading = 12kPa (distributed)
• Dedicated air conditioning
– temperature 20° to 25 °C
– relative humidity 40% to 55%
EIA/TIA 569 recommendations for equipment room
• Lighting
– 500 lux measured 1 m above finished floor
– Install light fixtures 2.6 m above floor
• Local disaster regulations
– seismic rating
WAN / routers
& security
WAN / routers
& securityLAN /
switches
LAN /
switches
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UPSUPS UPSUPS UPSUPS
Operating ConsoleOperating Console
applications/
server
applications/
serverSAN /
storage
SAN /
storage
Group your
equipment into
zones
power required
•heat generated
•amount & type of
cables
•maintenance
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Highest power & cooling
Lower power & cooling
BatteriesBatteries
THALAND
THALAND
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SINGAPORE
SINGAPORE
INDONESIA
INDONESIA
MALAYSIA
MALAYSIA
LAN &
WAN
LAN &
WAN
Group your
equipment into
zones
Consider ease of
operation
Spread out the
power / cooling
requirements
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Ramp to bring
equipment up onto
raised floors.
Suggested slope 1:12
Suggested width 1.8m
(but consider the width
of your largest piece of
equipment)
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Barriers / handrails
for safety purposes. Suggested height
>0.8m
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Allow space for
expansion
Near entrance for
easy install where
possible.
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Hot aislesHot aisles
Cold aislesCold aisles
Hot aislesHot aisles
Cold aislesCold aisles
Operating ConsoleOperating Console
Hot & Cold aisles
•Cold air directed to
cold aisles through
raised floors.
•Hot air return through
ceiling space
•Computer Room Air
handling units (CRAU)
located along hot aisle.
•Under the raised floor,
cables are routed along
hot aisles to prevent
obstruction to
incoming cold air.
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. .
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Separate comms
and electrical
cables where
possible
Opposite ends of
room
Top and bottom entry
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Minimum 1m Minimum 1m
Minimum 1mMinimum 1m
Min.1.5m
radius
Min.1.5m
radius
Operating ConsoleOperating Console
Min.1.5m
radius
Min.1.5m
radius
Maintenance space
Suggested 1m clearance in front & behind racks
Suggested 1.5m bend radius around access corners
Consider depth of your deepest equipment
Floor loading
Loading depends on weight of equipment
Recommended for CR = 7.2kPa min.
High traffic Areas = CR loading +50%
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Minimum 1m Minimum 1m
Possible
Maintenance / MAC
Work Area
Possible
Maintenance / MAC
Work Area
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Operating ConsoleOperating Console
If operating
Console needs to be
in computer room,
Near entrance for easy
access & escape
Not affected by any
maintenance / MAC
work
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Operating ConsoleOperating Console
Vision panel
•showcase data center.
•Security issue.
•Reinforced glass.
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UPSUPS UPSUPS UPSUPS
Operating ConsoleOperating Console
Minimise items
inside computer
room
FM200 cylinders
UPS batteries
Operating console
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Operating ConsoleOperating Console CCTV camera
At entrance
•with people counter
functionality
•complements log
book
at aisles
•monitor access to
equipment
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Operating ConsoleOperating Console
Access control
At least 2 forms of
recognition
•what you know
•who you are
•what you have
2 levels access control
prevents tailgating.
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Operating ConsoleOperating Console
Risers
•accessible from outside
•must be locked
•remotely monitored
preferred
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Structured vs. Unstructured
Cabling Solutions
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Distribution Area
•Main distribution
•Top of rack
•central cross connect to
all cabinets in the
computer room
•no. of cables depend on
equipment housed in the
racks.
•24 UTP ports/rack
•6 LC fiber ports per
rack
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STRUCTURED VS. UNSTRUCTURED
CABLING SOLUTIONS
Server
racks
The cabling starts with a few connections . . .
Switch racks
Storage
Changes made at active equipmentChanges made at active equipment
•• adding cables = accidental pulling adjacent cables adding cables = accidental pulling adjacent cables
•• pulling of cables = longer installation timespulling of cables = longer installation times
•• Mess under the floor = poor air flowMess under the floor = poor air flow
•• Long Long patchcordspatchcords = long lead times= long lead times
STRUCTURED VS. UNSTRUCTURED
CABLING SOLUTIONS
Switch rack
Storage
Server Ports
Switch Ports
Storage Ports
Server rack
DISTRIBUTION AREA
The alternative...The alternative...
Typical Data center
Backbone
cabling
Horizontal
cabling
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Distribution Area
•Horizontal distribution
area
•End of Row design
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HDAHDA
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Distribution Area
•Zone distribution area
what’s wrong with this
picture?
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Cold aisleCold aisle
Hot aisleHot aisle
ZDAZDA
Cabling should be
routed in hot aisle to
prevent obstruction
to air flow
Zone cabling boxes
Ceiling boxes Raised floor boxes
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CREMS
Computer
Room
Environmental
Monitoring
System
•power
•humidity
•temperature
•airflow
•sound
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Final design
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Operatin
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Ramp / Console areas outside CR
Separate support Area.
2 security points before entering CR
MDAMDA
Cold aislesCold aisles
Hot aislesHot aisles
Hot aislesHot aisles
Cold aislesCold aislesFM200 cylinders
FM200 cylinders
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Security
Access Control IP CCTV
Card & Numerical pad
access control IP CCTV - fixed
Iris scan access control IP CCTV - Pan/Tilt/Zoom
FINAL DESIGN
Final design
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UPSUPS UPSUPS UPSUPS
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Operatin
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Separate comms. and electrical cables
Different ends of room.
Top and bottom entry
MDAMDA
FM200 cylinders
FM200 cylinders
Elect.
Elect.
BatteriesBatteries
Final design
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UPSUPS UPSUPS UPSUPS
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Operatin
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Separate comms. and electrical cables
Different ends of room.
Top and bottom entry
MDAMDA
FM200 cylinders
FM200 cylinders
Elect.
Elect.
BatteriesBatteries