tia-942 data centers niemiera
TRANSCRIPT
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TIA 942 (-A)TIA 942 (-A)Data Centers
Greg Niemiera, RCDDDirector Technical SupportDirector Technical Support
and Field ServicesMohawkMohawk
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Agenda
ANSI/TIA-942 Background Standards Restructuring Anticipated ChangesAnticipated Changes Addendums
ISO/IEC 24764 I fl ISO/IEC 24764 Influence New Content
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Background
ANSI - American National Standards InstituteStandards Institute Publishes TIA and IEEE
All TIA d t 5 All TIA documents on a 5 year revision cycle
TIA T l i ti TIA - Telecommunication Industry Association
ANSI/TIA-942 (2005) Telecommunications Infrastructure
Standard for Data Centers
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Restructuring of TIA StandardsStandards
Revised document TIA-942-AR t t d d h i d Restructured and harmonized with current TIA-568-C
Common information applying to multiple types of premise applications is in a common standard i.e. 568-C.0
Information for specific premises are in standards like pTIA-942 for Data Centers
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Restructuring of TIA StandardsStandards
568-C contains:C Component requirements intended primarily for vendors
Installed Permanent Link and Channel requirements for
t t /i t llcontractors/installers Change was to improve:
Ease of use Efficiency Consistency between standards
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Addendums
Addendums are requirements added to a standard between revisionsstandard between revisions
When the document is revised the addendums are incorporatedaddendums are incorporated
Most standards have addendums associated with themwith them
For example Category 6A was issued as Addendum 10 to the 568-B document, (568-Addendum 10 to the 568 B document, (568B.2.10)
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Open Architecture
This standard specifies a generic t l i ti bli t f thtelecommunications cabling system for the data center and related facilities whose primary function is information technology primary function is information technology. page ix PurposeMohawks Freedom of Choice program withMohawks Freedom of Choice program with ChannelMATE warranty supports the intent of this and other related TIA standardsof this and other related TIA standards
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TIA Standard Scheme
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942-A Anticipated Changes942 A Anticipated Changes Reference:
Generic Telecommunications topology
Terms Terms Environmental classifications per
568-C.O
TIA-942 is a now premise standard specifically for Data p yCenter environments
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Organizational ChangesOrganizational Changes
Content for Bonding and Grounding will be moved to 607 (currently draft B)
Content regarding Labeling will be moved to 606-A Addendum 1 (revised 2008) Covers specifics for:p
Computer Rooms Equipment Rooms
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Organizational Changesg g
Rack and Cabinets content willRack and Cabinets content will move to TIA-569 as these are generic to all premises
Power and Telecommunications cabling separation in TIA-569
Outside Plant to draft TIA-758 OSP Standard
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Expanded Topology
Large Data Centers includeM i Di t ib ti A (MDA) Main Distribution Area (MDA)
Intermediate Distribution Area (IDA) Horizontal Distribution Area (HDA)Horizontal Distribution Area (HDA) Optional Zone Distribution Area
(ZDA)
Contains 2nd level backbone distributorbackbone distributor
IC Intermediated Crossconnect
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Topologyp gy
Large facilities may contain multiple computer rooms
Each may contain multiple y pIDAs acting as central point of administration
Allowance for reduced data center topology consolidatescenter topology consolidates MDA and HAD into single MDA
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942 Addenda942 Addenda
TIA 942-1 Coax Cabling 2008g Specifies requirements for
75-ohm (734 and 735 DS-(3/DS-4 type) coaxial cabling
Additional requirements:q Coax connector components
for T-3, E-1 and E-3 Longer distances from MDA Revised distance guidelines for
T 1 T 3 E 1 and E 3T-1, T-3, E-1 and E-3
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942 Addenda942 Addenda TIA 942-2 Data Centers 2009 Improved Energy Efficiency:
Wider acceptable rangeWider acceptable range temperature and humidity
Three tier lighting protocolThree tier lighting protocol Category 6A recommended
G idance regarding RFI Guidance regarding RFI Updated Tiers
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TIA-942 A Changes
Terminology such as: EO equipment outlet ENI external networkENI external network
interface Maximum Horizontal length Maximum Horizontal length
Copper maximum 100m
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Major Fiber Changes
Elimination of 100 m length limitation on fiber; distance to be based on application
62.5m OM1 & OM2 not recognized 50m OM3 and OM4 recognized for50m OM3 and OM4 recognized for
both horizontal and backbone Recognized connectors Recognized connectors
LC for < two fibersMPOs > 2 MPOs > 2
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Fiber Changes
Horizontal Fiber cabling distances applicationsdistances applications dependent i.e. 568-C.0H i ti TIA d ISO Harmonization TIA and ISO
Liaison's between the standards bodies
Harmonization is ideal but not always achievable
ISO/IEC 24764 TIA-942 D. C.ISO/IEC 24764 TIA 942 D. C. ISO/IEC 11801 TIA 568-C
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ISO/IEC 24764 Influence
FiberSpecifies minimum OM3 Specifies minimum OM3
50/125 micron 850 nm Laser Optimizedp
Connectors MM and SM LC or MPO at
EO - Equipment Outlet ENI Equipment Network Interface (X-
connect at EF or TR)connect at EF or TR)
Fiber based channel length OF-300 / 300m OF-500 / 500m OF-2000 / 2000m
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Major Copper ChangesMajor Copper Changes
Category 3 and 5e no longer recognized for horizontal
Minimum of Category 6g y Category 6A recommended
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ISO/IEC 24764 Influence
Balanced twisted pairBalanced twisted pair cabling
Specifies Class EA Cabling Specifies Class EA Cabling Category 6A Exception network access
942-A will recommend 6A
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942-A New Section Content Energy efficiency Section Data Centers consume large amounts ofData Centers consume large amounts of
energy, with the majority being converted to heat
Estimated that cooling is 30% of a data centers Estimated that cooling is 30% of a data centers energy load
Cooling process itself is not efficient resulting i l f ld i t t fin an oversupply of cold air to compensate for inefficiencies
Recent study showed that the amount of cold yair supplied is 2.6 times the amount actually consumed by the IT load
Even though rooms are oversupplied (2.6) ~10%Even though rooms are oversupplied (2.6) 10% of enclosures exceed ASHRE limits
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Cooling Efficiencies Cabinets with isolated air-supply or
isolated air-return Cabinets with in-cabinet cooling systems Cable openings utilizing grommets or
brushes in the enclosure (system)brushes in the enclosure (system) Blanking panels in open empty rack
positions Hot-aisle or cold aisle containment
systems Cabinets that minimize air bypass throughCabinets that minimize air bypass through
the space between equipment rails and cabinet sides
Fill/consoladate unused cabinet rack Fill/consoladate unused cabinet rack positions
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Energy Efficiency
Utilize a cooling system that allows t l t th l f iyou to regulate the volume of air as
needed Equipment with non standard airflow Equipment with non-standard airflow
may require specially designed enclosures to avoid air flow disruptionenclosures to avoid air flow disruption
Cabling Overhead improves cooling efficiency and is a best practiceefficiency and is a best practice where practical verses under floor Top of rack switching architectures
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Energy Efficiency
Simple Network Management Protocol (SNMP) Power strips to measure and(SNMP) Power strips to measure and monitor power levels to ensure enclosures dont exceeded power andenclosures don t exceeded power and required cooling levels These SNMP software tools provide the
ability analyze power cooling metrics such as Power Usage Effectiveness (PUE) and Data Center infrastructure Efficiencyand Data Center infrastructure Efficiency (DCiE)
Metrics used to determine energy efficiency of a data center
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SummarySummary Work is being done in TR-42.1
subcommitteesubcommittee These are proposed changes
being considered to TIA-942-Abeing considered to TIA-942-A Some of these may not make
the final TIA 942-A documentthe final TIA 942 A document There may possibly be other
changes included that we havechanges included that we have not reviewed
Optimistically 942-A published p y plate 2011