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IDCA Data Center Encyclopedia

Following is the baseline encyclopedia of effective data center acronyms, data center terminologies and data center definitions that are used or should be put in use as a common language within the industry.
Click on a letter to go to a section.

7

7 AE Layers
The 7 application ecosystem abstract layers within the infinity paradigm.

A

A(t)
Instantaneous Availability.
AA
Achieved Availability.
ABC
Activity-Based Costing.
AC
Alternating Current.
ADA
Application Delivery Architecture.
ADD
Application Detailed Design.
ADI
Application Delivery Infrastructure.
ADM
Application Delivery Model.
ADSL
Asymmetric DSL.
AE
Application Ecosystem.
AER
Availability Efficacy Rating is data center’s measure of over all availability effectiveness, worthiness and value across the organization’s application ecosystem (AE).
AGA
Application General Architecture.
AHJ
Authority Has Jurisdiction.
Ai
Intrinsic Availability.
Am(t2 - t1)
Average Availability.
AP
Access Provider.
Application Layer
a set of software services that fulfill organization requirements.
APS
Application Platform Specification.
As
Steady State Availability.
ASHRAE
American Association of Heating Refrigerating and Air-Conditioning Engineers.
ASP
Application Service Provider.
ATL
Atmospheric Lifetime.
ATM
Asynchronous Transfer Mode.
ATO Switch
Automatic Throw Over Switch.
ATS
Automatic Transfer Switch.
AUS
Average User Sessions.
AWG
American Wire Gauge.

B

BaaS
Business as a Service.
BAS
Bild Austast Synchron.
BBM
Break Before Make.
BC
Backbone Cabling.
BC
Business Continuity.
BCM
Business Continuity Management.
BCP
Business Continuity Planning.
BGP
Border Gateway Protocol.
BIA
Business Impact Analysis.
BICSI
Building Industry Consulting Services International.
BMC
Baseboard Management Controller.
BMS
Building Management System.
BOCB
Bulk Oil Circuit Breaker.
BOM
Bill of Materials.
BTS
Busbar Trunking System.
BTS
Base Transceiver Station.
BTU
British Thermal Unit.

C

CAF
Conductive Anodic Filaments.
CapEx
Capital Expenditures.
CAT Cable
Category Cable.
CAV
Constant Air Volume System.
CBEMA
Computer & Business Equipment Manufacturers Association.
CBN
Common Bonding Network.
CCTV
Closed-Circuit Television.
CCU
Concurrent Users.
CCU
Closed Control Unit.
CE Rating
Capacity Efficacy Rating.
CENELEC
European Committee for Electrotechnical Standardization.
CER
Capacity Efficacy Rating (CER) is data center’s measure of over all capacity effectiveness, worthiness and value across the organization’s application ecosystem (AE).
CFD
Computational Fluid Dynamics.
CFM
Cubic Feet per Minute.
CIBSE
Chartered Institution of Building Services Engineers.
CIFS
Common Internet File System.
CMH
Cubic Meters per Hour.
COBIT
Control Objective for Information related Technology.
Compute Layer
the logical design of computing resources. Compute is a layer in which processing requirements of the application are defined in an abstract form.
COP
Coefficient of Performance.
CPU
Central Processing Unit.
CR
Computing Resources.
CR
Computer Room.
CRAC
Computer Room Air Conditioning.
CRAH
Computer Room Air Handling.
CRS
Compute Requirement Specification.
CT
Closed Transition.
CUE
Carbon Usage Effectiveness.

D

DAS
Direct Attached Storage.
DC
Direct Current.
DC
A Data Center is the Infrastructure supporting the Application Ecosystem (AE).
DCA
Data Center Authority.
DCAB
Data Center Application Build.
DCAD
Data Center Application Design.
DCBC
Data Center Build Certification.
DCC
Data Center Cloud is a set of data center nodes arranged in a specific topology.
DCCA
Data Center Certified Auditor.
DCCB
Data Center Compute Build.
DCCC
Data Center Certified Consultant.
DCCD
Data Center Compute Design.
DCCI
Data Center Certified Instructor.
DCDC
Data Center Design Certification.
DCE
Data Center Expert.
DCES
Data Center Engineering Specialist.
DCETF
Data Center Efficiency Task Force.
DCFB
Data Center Facility Build.
DCFD
Data Center Facility Design.
DCIB
Data Center ITI Build.
DCID
Data Center ITI Design.
DCIE
Data Center Infrastructure Efficiency.
DCIM
Data Center Infrastructure Management.
DCIS
Data Center Infrastructure Specialist.
DCM
Data Center Manager.
DCN
Data Center Node is a combination of physical Site, Site Facility Infrastructure (SFI), IT Infrastructure (ITI) supporting Application Ecosystem (AE) at a specific topology node.
DCNB
Data Center Node Build.
DCNCD
Data Center Node Conceptual Design
DCND
Data Center Node Design.
DCNDD
Data Center Node Detailed Design
DCNE
Data Center Node Engineer.
DCNM
Data Center Node Manager.
DCNR
Data Center Node Requirements
DCOM
Data Center Operations Manager.
DCOS
Data Center Operations Specialist.
DCPB
Data Center Platform Build.
DCPD
Data Center Platform Design.
DCPDC
DC Powered Data Centers.
DCR
Data Center Replication.
DCSB
Data Center Site Build.
DCSD
Data Center Site Design.
DCT
Data Center Topology.
DCTB
Data Center Topology Build
DCTBC
Data Center Topology Build Certification.
DCTD
Data Center Topology Design
DCTE
Data Center Topology Engineer.
DCTM
Data Center Topology Manager.
DCTP
Data Center Technology Professional.
DE
Design Efficiency.
Dew Point
The temperature at which the air can no longer hold all of its water vapor, and some of the water vapor must condense into liquid water.
DFD
Data Flow Diagram.
DR
Disaster Recovery.
DRN
for Disaster Recovery Node is a combination of physical Site, SFI, and ITI supporting application ecosystem at a specific topology node for the purpose of disaster recovery.
DROOP
Droop Speed Control.
DRP
Disaster Recovery Plan.
DS
Digital Signal.
DVR
Digital Video Recorder.
DX
Direct Expansion.

E

EAP
Extensible Authentication Protocol.
ECC
Emergency Cardiovascular Care.
ED
Extreme Density.
EDA
Equipment Distribution Area
EER
Energy Efficiency Ratio.
EF
Electric Field.
EGW
Ethylene Glycol and Water.
EMF
Electric Magnetic Field.
EMI
Electric Magnetic Interference.
EMP
Electric Magnetic Pulse.
EMS
Environment Monitoring System
EPA
Environment Protection Agency.
EPMS
Electrical Power Management System.
EPO
Emergency Power Off.
ER
Entrance Room
ERF
Energy Re-use Factor.
ERM
Entity Relationship Model.
ESCON
Enterprise Systems Connection.
ESD
Electro Static Discharge.
ESR
Efficacy Score Rating
ETL
Extract, Transform, Load.
ETT
Estimated Think Time.
EUE
Energy Usage Effectiveness.

F

FC
Ferrule Connector.
FISMA
Federal Information Security Management Act.
FMS
Facility Management System.
FTP
File Transfer Protocol.

G

G
Grade.
G0
Grade Level 0 is the highest level of achievement when awarded to any application, platform, compute, ITI, SFI, Site or Topology layers. G0 represents the lowest levels of risk, lowest level of insecurities, inefficiencies, vulnerabilities and chances of failure.
G1
Grade Level 1 is the above average level of achievement when awarded to any application, platform, compute, ITI, SFI, Site or Topology layers. G1 represents the low levels of risk, low level of insecurities, inefficiencies, vulnerabilities and chances of failure.
G2
Grade Level 2 is the average level of achievement when awarded to any application, platform, compute, ITI, SFI, Site or Topology layers. G1 represents an average exposure to risks, insecurities, inefficiencies, vulnerabilities and chances of failure.
G3
Grade Level 3 is the below average level of achievement when awarded to any application, platform, compute, ITI, SFI, Site or Topology layers. G3 represents a below average exposure to risks, insecurities, inefficiencies, vulnerabilities and chances of failure.
G4
Grade Level 4 is the lowest level of achievement when awarded to any application, platform, compute, ITI, SFI, Site or Topology layers. G4 represents the highest levels of risk, highest acceptable level of insecurities, inefficiencies, vulnerabilities and chances of failure.
GEC
Green Energy Coefficient.
Genset
Generator
GRC
Governance Risk and Compliance.
GWP
Global Warming Potential.

H

HC
Harmonic Current.
HD
High Density.
HDA
Horizontal Distribution Area
HDD
Hard Disk Drive.
HITSP
Healthcare Information Technology Standards Panel.
HSSD
Highly Sensitive Smoke Detection.
HTTP
Hypertext Transfer Protocol.
HTTPS
Hypertext Transfer Protocol Secure.
HVAC
High Voltage AC.
HVAC
Heating Ventilation and Air Conditioning.
HVDC
High Voltage DC.
HWQ
Hardware Quantity.

I

I
Current (Amps).
IaaS
Infrastructure as a Service.
IBC
International Building Code
IDCA
International Data Center Authority.
IDS
Intrusion Detection System.
IEC
International Electrotechnical Commission.
IFB
Invitation For Bid.
IGP
Interior Gateway Protocol.
IITC
IDCA Integrated Technology Certification.
INCITS
International Committee for Information Technology Standards.
Infinity
Concept of achieving virtual infinite availability, reliability, security, capacity and resilience as adherent to the organization’s need.
IP
Ingress Protection.
IPMI
Intelligent Platform Management Interface.
IPng
Internet Protocol Next Generation.
IPS
Intrusion Prevention System.
IPsec
IP Security.
IR
Infrared.
ISACA
Systems Audit and Control Association.
ISAE
International Standard on Assurance Engagements.
ISCC
International Standardization and Compliance Committee.
iSCSI
Internet Small Computer System Interface.
ISMS
Information Security Management System.
ISO
International Organization for Standardization.
ISOCH
Isochronous Speed Control.
ISP
Internet Service Provider.
ITDC
IDCA Technology Design Certification.
ITI
Information Technology Infrastructure.
ITI Layer
a set of physical components at the information technology level, utilized for the application delivery, housed at the data center sites.
ITIL
IT Infrastructure Library.
ITSC
IDCA Technology System Certification.
ITSC
IDCA Technology System Certification.
ITSM
IT Service Management.

K

kPA
Kilo Pascal.
KPI
Key Performance Indicator.
KVM
Kernel-based Virtual Machine.

L

L2F
Layer 2 Forwarding.
L2TP
Layer 2 Tunneling Protocol.
LAN
Local Area Network
Latent Load
refers to the wet bulb temperature.
Lbf
Pound Force.
LC
Lucent/Little or Local Connector.
LD
Low Density.
LED
Light Emitting Diode.
LEED
Leadership in Energy and Environmental Design.
Logical Infrastruture
application, platform and compute abstraction layers of the infinity paradigm.
LOM
List of Materials.
LP
Liquid Petroleum.
lx
Lux, SI unit of luminous emittance.

M

M&R&E
Maintenance, Repair and Enhancement.
MBM
Make Before Break.
MD
Medium Density.
MDA
Main Distribution Area.
MERV
Minimum Efficiency Reporting Value.
MF
Magnetic Field.
MMS
Monitoring and Management System.
MOCB
Minimum Oil Circuit Breaker.
MPLS
Multiprotocol Label Switching.
MPO/MTP
Multiple-Fiber Push-On/Pull-Off.
MT-RJ
Mechanical Transfer Registered Jack.
MTBF
Mean Time Before Failure.
MTTR
Mean Time To Repair.

N

NaaS
Nothing as a Service.
NaaS
Nothing as a Service.
NAS
Network Attached Storage.
NEBS
National Equipment Building System.
NEC
National Electrical Code.
NFPA
National Fire Protection Association.
NFS
Network File System.
NIC
Network Interface Card.
NIST
National Institute of Standard Technology.
nm
Nano Meter, an SI unit of length, equal to 10−9 m.
NMS
Network Management System.
NOAEL
No Observable Adverse Effect Level.
NOC
Network Operations Center.
NVR
Network Video Recording.

O

OC
Optical Carrier.
OC
Optical Carrier.
ODP
Ozone Depletion Potential.
OER
Operational Efficacy Rating (OER) is data center’s measure of over all operational effectiveness, worthiness and value across the organization’s application ecosystem (AE).
OGC
Office of Government Committee.
Ohm
SI unit of electrical resistance.
OLA
Operation Level Agreement.
OLR
Operation Level Report.
OP
On Premise.
OpenSDLC
Open Systems Development Life Cycle.
OpEx
Operating Expenditures.
OPF
Open Process Framework.
OSI
Open Systems Interconnection.
OSPF
Open Shortest Path First.
OT
Open Transition.

P

PaaS
Platform as a Service.
PAC
Precision Air Conditioning.
PAO
Polyaliphatic Olefins.
PDU
Power Distribution Unit
Pen Test
Penetration Test.
pF
Power Factor.
PGW
Propylene Glycol and Water.
Physical Infrastructure
ITI, SFI, Site and Topology abstraction layers of the infinity paradigm.
PIF
Packet Inspection Firewalls.
PIF
Packet Inspection Firewalls.
Platform Layer
the methodology by which the application is delivered.
PM
Physical Machines.
POD
Platform Optimized Design.
PPTP
Point-to-Point Tunneling Protocol.
PS
Physical Storage.
PSG
Paralleling Switchgear.
PTW
Permit To Work.
PTZ
Pan Tilt Zoom.
PUE
Power Usage Effectiveness.

Q

QA
Quality Assurance.
QC
Quality Control.
QI
Quality Improvement.
QoS
Quality of Service.

R

R
Resistance (Ohms).
RAID
Redundant Array of Independent Disks.
RAS
Risk Assessment Grade.
RER
Resilience Efficacy Rating (RER) is data center’s measure of over all resilience effectiveness, worthiness and value across the organization’s application ecosystem (AE).
RFI
Request for Information.
RFID
Radio-Frequency Identification.
RFP
Request for Proposal.
RFQ
Request for Quotation.
RFT
Request for Tender.
RFW
Radio Frequency Weapons.
RLU
Rack Location Unit.
ROI
Return on Investment.
RPO
Recovery Point Objective.
RS
Real Servers.
RTO
Recovery Time Objective.

S

SaaS
Software as a Service.
SaaS
Software as a Service.
SACM
Service Asset and Configuration Management.
SAN
Storage Area Network.
SAS
Serial Attached SCSI.
SATA
Serial ATA (Advanced Technology Attachment).
SC
Subscriber/Square or Standard Connector.
SCM
Service Catalog Management.
SDH
Synchronous Digital Hierarchy.
SEER
Seasonal Energy Efficiency.
Sensible Load
refers to the dry bulb temperature.
SER
Security Efficacy Rating (SER) is data center’s measure of over all safety & security effectiveness, worthiness and value across the organization’s application ecosystem (AE).
SFI
Site Facility Infrastructure.
SFI Layer
a set of components, at the facility level, utilized for the application delivery, housed at the data center sites.
SFP
Specific Fan Power.
SFTP
SSH File Transfer Protocol.
SFTP
Screened Foiled Twisted Pair.
SHR
Sensible Heat Ratio.
Site Layer
an independently operated space to house data center infrastructure.
SLA
Service Level Agreement.
SLM
Service Level Management.
SLR
Service Level Report.
SONET
Synchronous Optical Network.
SOP
Standard Operating Procedure.
SOW
Scope Of Work.
SOW
State Of Work.
SPI
Stateful Packet Inspection.
SPM
Service Level Management.
SS
Supporting Space.
SSC
Static Switch Cabinet.
SSD
Solid State Drive.
SSH
Secure Shell.
SSL
Secure Socket Layer.
SSTP
Screen Shielded Twisted Pair.
ST
Straight Tip.
STM
Synchronous Transport Module.
STP
Shielded Twisted Pair.
STS
Static Transfer Switch.

T

TAFIM
Technical Architecture Framework for Information Management.
TCO
Total Cost of Ownership.
TCP/IP
Transport Control Protocol / Internet Protocol.
TDM
Time Division Multiplexing.
TED
Transient Electromagnetic Device.
THD
Total Harmonic Distortion.
The Core
a model depicting the Infinity Paradigm.
The Pyramid
a model depicting the Infinity Paradigm.
TIA
Telecom Industry Association.
TOGAF
The Open Group Architecture Framework.
Topology Layer
is connectedness, continuity and boundaries signifying a set of correlations, connections, dependencies, and relations between various data center sites for the delivery of the organization’s application.
TPS
Transactions Per Second.
TTD
Time to Deploy.
TTR
Time To Recover.
TVSS
Transient Voltage Surge Suppression.

U

UDP
User Datagram Protocol.
UL
Underwriters Laboratories.
UML
Unified Modeling Language.
UPS
Uninterruptable Power Supply
UTP
Unshielded Twisted Pair.
UV
Ultraviolet.

V

V
Voltage.
VA
Volt Ampere.
VAR
Reactive Power.
VAV
Variable Air Volume System.
VDI
Virtual Desktop Infrastructure.
VESDA
Very Early Smoke Detection Apparatus.
VFS
Virtualized File System.
VIn
Voltage between phase line to neutral.
VM
Virtual Machines.
VoIP
Voice Over IP.
VPN
Virtual Private Network.
Vpp
Voltage between phase to phase.
VRLA
Valve-Regulated Lead-Acid.
VRRP
Virtual Router Redundancy Protocol.
VS
Virtual Storage.
VSAT
Very Small Aperture Terminal.
VTS
Verification Test Suites.
VW
Virtual World.

W

W
Watt.
WAN
Wide Area Network.
WebDAV
Wed Distributed Authoring and Versioning.
WISP
Wireless Internet Service Provider.
WO
Work Order.

Z

ZDA
Zone Distribution Area.

Δ

ΔT
Temperature Differential.

Μ

μ
Micron.