4. Data Centre : Service Delivery Model
Enterprise
[On-Premise]
Private DC
Content
Application
OS 賊 DB
Hypervisor
Bare Metal
Network
Facility
Colocation
[Colocation] [DCaaS]
Facility DC
Content
Application
OS 賊 DB
Hypervisor
Bare Metal
Network
Facility
Carrier Hotel
[Fabric] [NaaS]
Internet DC
Content
Application
OS 賊 DB
Hypervisor
Bare Metal
Network
Facility
Private Cloud
[MaaS] [IaaS]
Infrastructure DC
Content
Application
OS 賊 DB
Hypervisor
Bare Metal
Network
Facility
Community Cloud
[PaaS] [SaaS]
Multi-Tenant VDC
Content
Application
OS 賊 DB
Hypervisor
Bare Metal
Network
Facility
Public Cloud
[SECaaS] [XaaS]
Multi-Hybrid VDC
CSSP + Content
Orchestrator
OS 賊 DB
Hypervisor
Bare Metal
Network
Facility
5. Data Centre Facility : Standard and Certification
EN-50600
[Europe]
SS-507
[Singapore]
BICSI based on
TIA-942 [USA]
CERTAC based on TIA-
942 [USA]
UpTime
[USA]
Standard
Guideline
Class : 1 - 4
Pass / Fail
Class : 0 - 4
Rated : 1 - 4
Tier : I - IV
Conformity
Yes
Yes
Yes
Yes (Paid)
Yes
Availability of
Standard
Available
Available
Not Available
Available
Available
Certification
Electrical
Mechanical
Distribution
Architectural
Telecom
Site Location
Safety-Security
Efficiency
Electrical
Mechanical
Distribution
Architectural
Telecom
Site Location
Safety-Security
Electrical
Mechanical
Distribution
Architectural
Telecom
Site Location
Safety-Security
Electrical
Mechanical
Distribution
Architectural
Telecom
Site Location
Safety-Security
Efficiency
Tier Standard
Electrical
Mechanical
Distribution
OS Standard
Other Element
Scope of
Topology
Non-Profit
Non-Profit
Non-Profit
Hybrid
Commercial
Incorporation
EN-CENELEC
Spring
ANSI
ANSI
No
Accreditation
No
No
Yes
Yes
Yes
Training Event
N/A
Spring, Others
N/A
EPI, Others
UpTime Only
Auditor
6. Development of TIA-942 Standard
June
2001
TIA-942 Working
Group Created
Apr
2005
ANSI/TIA-942
Published
Mar
2008
ANSI/TIA-942
Coaxial Cabling
Space &
Application
Distances
Mar
2010
ANSI/TIA942-2:
Additional
Guidelines
Mar
2013
ANSI/TIA-942-A-1:
Addendum 1 -
Cabling Guidelines
for DC Fabrics
Aug
2012
ANSI/TIA-942-A:
Published
Mar
2014
ANSI/TIA-942-A:
Re-Published
July
2017
ANSI/TIA-942-B
Apr
2024
ANSI/TIA-942-C
7. TEAM Approach of Data Centre Facility Design
7
Telecommunication (ICT and Cabling System)
Entrance Room (Carrier Room)
Main Distribution Area (Meet Me Room)
Zone Distribution Area (End of Row)
Horizontal Distribution Area (Top of Rack)
Equipment Distribution Area (Rack)
ICT System (Info-Sec, Network, LAN, Mesh Wi-Fi, HCI Stack, etc.)
Electrical (Power System)
Power Supply (HT-AVR, HT Panel, Transformer, ATS-PFI-Synch)
Power Automation (DCIM, BCM, SCCS, Live SLD, Mini-SCADA)
Power Protection (UPS, Battery, Gen-Set, Fuel System, SRG)
Power Distribution (LT Panel, BBT, Bus-Way, TOB, AC-DC, PDU)
Power Infrastructure (Usage Policy, Ventilation, Exhaust, Billing)
Documentation (AHJ Approval, BCM, Crisis Management, AMC, etc.)
Data Hall (Rack, Containment, Raise Floor, Return Air, Thermal Insulation)
HVAC System (Chiller, PAHU, PAC, CAC, Dose, Thermal Storage)
Chiller Plumbing (Motor, Valve, Insulated Pipe, EMS, WLD)
Building Technology (DCIM, BMS, LAN, Mesh Wi-Fi, HCI Stack)
Safety System (Rodent, AFSS with Clean Agent and Plumbing)
Security System (Access, Surveillance, Man-Trap, Barrier, PAVA)
Mechanical (HVAC and BMS System)
Sire Selection (Seismic Zone, Flood History, Connectivity, etc.)
Layout and Area Plan with Vehicle, Human and Cargo Movement
Construction (Dismantling, D辿cor, Load Bearing Capacity of Slab)
Workspace (Office, FOC, NOC, SOC, Stage, Store, Lounge, Dorm)
Operations Centre (Video Wall, Video Matrix Controller, Roster)
Documentation (Usage Policy, Labeling, Certification, Contract)
Architectural (Structure and Workspace System)
TEAM Approach of Data Centre Design
8. Data Centre Facility Design : List of Thumb-Rule(s)
List of Thumb-Rule
To-Consider
Raise Floor : May Not Be Required
Suspended Ceiling : Not Recommended
Under Raised Floor Plumbing : Nothing
In-Row PAHU/PAC : May Be Considered
Power Density instead of Rack Number
Single Tenant Solution : Enterprise DC
Multi Tenant Solution : Colocation DC
Metered PDU : Enterprise DC
Metered Tap-Off Box : Colocation DC
Tier-IV / Rated-4 : Carrier Grade / B2B
Tier-III / Rated-3 : Enterprise / B2C
Tier-II / Rated-2 : Multi-AZ based CSP
Tier-I / Rated-1 : SOHO / Individual
Designer & Internal Auditor : Not Same
List of Thumb-Rule
To-Conceptualise
100% Uptime : 2 * Tier-IV / Rated-4 DC
100% Uptime : 3 * Tier-III / Rated-3 DC
100% Uptime : 4 * Tier-II / Rated-2 DC
100% Uptime : 5 * Tier-I / Rated-1 DC
100% Uptime : 1+1+1 Ring between DC
100% Uptime : Separate Seismic Zone
Evaluate Requirement of Certificate
Evaluate Requirement of Available Zone
Evaluate Requirement of Service Model
Evaluate Requirement of Clientele
Bangladesh Bank Model : 3 * DC
Most Economical 100% Uptime : 3 * DC
Most Complex Design: Tier-III / Rated-3
Procurer & Project Manager : Not Same
List of Thumb-Rule
To-Confirm
Tier-IV Standard : 1+1 Sub-Station
Rated-4 Standard : 1+1 Power Grid
Gen-Set is part of UPS not Separate
Isolation Trfr : Carrier Grade / B2B
TOB/PDU based IGBT : Enterprise / B2C
CMN Elimination : Multi-AZ based CSP
Nothing is Required : SOHO / Individual
Basic PDU : High-Quality Power Strip
Meter PDU : Basic PDU + Energy Meter
Smart PDU : Meter PDU + TH Sensor
Intel PDU: Smart PDU + Socket Monitor
Battery Autonomy < 10 Minutes
Gen-Set : DCC Rated with 24 Hour Fuel
Proper SRG is a Must To-Do
9. Design Consideration : Carrier Grade Colocation Felicity in Bangladesh
9
Facility Certification by Uptime/CERTAC
PCI-DSS (Trusted Site Infrastructure)
ISO-9001 (QMS), ISO-27001 (ISMS)
ISO-14001 (EMS), ISO-50001 (EMS)
Average Yearly PUE < 1.7 (if Bangladesh)
ICT Power Density / Rack : 7 KW (63 A)
Total Power Density / Rack : 12 KW
Fuel Reservoir, AFSS, Fire Drill by AHJ
Structure, Architecture, Power by AHJ
10. Tier/Rated Certification of Design and Facility Construction
10
Rated 4
Rated 3
Rated 2
Rated 1
CERTAC, NL (based on TIA-942)
N + N
(from Utility Grid)
N + 1
N + 1
N
Active Capacity Components to
Support the IT Load
2 Simultaneously Active
1 Active and 1 Alternate
1
1
Distribution Paths
Yes
Yes
No
No
Concurrently Maintainable
Yes
No
No
No
Fault Tolerance
Yes
No (Depends)
No
No
Compartmentalization
No
No
No
No
Continuous Cooling
Tier IV
Tier III
Tier II
Tier I
Uptime Institute, US
N, After Any Failure
(from Utility Sub-Station)
N + 1
N + 1
N
Active Capacity Components to
Support the IT Load
2 Simultaneously Active
1 Active and 1 Alternate
1
1
Distribution Paths
Yes
Yes
No
No
Concurrently Maintainable
Yes
No
No
No
Fault Tolerance
Yes
No
No
No
Compartmentalization
Yes
No (Depends)
No
No
Continuous Cooling
12. AHJ, QMS, ISMS, EMS, EMS Certification of Design and Facility
12
ISO-9001 (Quality Management System)
Organisational Behaviour
Leadership, Planning
Support, Operation
Performance Evaluation
Monitor, Measure, Improvement
ISO-27001 (Information Security Management System)
Policy and Process of Risk Management
Organisational Structure, Information Classification
Access Control Mechanism, Physical and Technical Safeguards
Information Security Policies and Procedures
Monitoring and Reporting Guidelines
Energy Policy, Energy Performance, Energy Efficiency, EMS Objective
Improvement of EMS, Action Plan on Continuous Improvement
Energy Audit, Reduction of Energy Consumption, Promoting Best Practice
Scope, Operation, Support, Management Review, Communication, EMS*
Transformation towards Green Energy, Reduction of Carbon Footprint
ISO-50001 (Energy Management System)
Environmental Policy
Planning, Environmental Audit
Implementation and Operation
Checking and Corrective Action
Management Review
ISO-14001 (Environmental Management System)
Authority Having Jurisdiction (Legal Hierarchy)