Low Complexity + Low Cost = High Availability
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Transcript of Low Complexity + Low Cost = High Availability
© 2014 Uptime Institute
Low Complexity + Low Cost = High Availability
Keith Klesner, PE Vice President, Strategic Accounts
Uptime Institute
Driven by Business, IT Strategy, and Customers Multitude of Data Center Design Criteria § Availability § Location § Connectivity § Scalability § Energy Efficiency with 100% Availability § Innovation Many Data Centers 100% Uptime is an Expectation
Simple and Cost-Effective Designs Lead to Uptime
Data Center Solutions
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Uptime Institute Data and Analysis: § Historically vast majority of outages are caused by human error § In 2011 redundancy and staffing led to 67% of saves (outages
prevented) § Operational Sustainability reviews of dozens of live data centers in the
past 3 years
Certain Design Solutions Increase the Chance for Human Error while other Designs Reduce the Risk
and Allow for Saves
Why Do Failures Occur?
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Start With The End In Mind
Uptime Institute research and field experience confirms § Data center operations start before the conceptual design
phase of the project process § Data center operations continue to serve as the source of
continuity for knowledge management and transition to production
Why an Operations Focus? § Increase return on investment § Increase uptime § Increase data center efficiency § Reduce costs § Reduce risks
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Typical Construction Plan Precon/Planning Design Construction Commissioning Turnover Close out project Scramble to get operations management program in place
Uptime Institute’s Integrated Capital Project Plan Starts with the end in mind…
and prepares customers from the beginning to maintain and operate a data center beginning at turnover
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Uptime Institute
Highly Operable Engineering Solution?
• Fuel Control, Pumping, and Filtration Room
• 2(N+1) Pumps • Complex Design was Initially
Built Incorrectly • Operating Valves Required
Climbing on and over Piping
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Highly Operable Engineering Solution
• 20,000-liter Engine Generator Belly Tank
• Engine Generator within Enclosure is Directly on top of Belly Tank
• No Additional Piping or Fuel Pumps Required
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Traits of Simplicity § Immediately understood architecture
• 2N Topology versus Isolated Redundant • Well marked A and B Systems
§ Avoid reliance and over provisioning of ATSs or STSs § Limit Complex Building Automation Systems Allow for § Reduced operator error § Clear operations during emergency (allows for saves) § Reduced cording error
Simple Solutions
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Simplicity in Practice
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Design Example: 3 to Make 2 Option
• Allows the UPSs and PDUs to be loaded at maximum of 66.6% • Requires strict management of loads and connections
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Design Example: 2N Option
• Allows the UPSs and PDUs to be loaded at maximum of 50% • Easiest layout to manage loads and connections
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§ Is the design characteristic a proven performance enhancement?
§ Does the design characteristic increase exposure to human error?
Designers, Owners and Operators must be able to answer the following:
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“Right sized” for Load § Key equipment designed around major components
• UPS, Engine Generators, and Chillers/Mechanical Cooling § Phased build out to truly allow for “pay-as-you-grow”
but without impacting the critical load § Modern equipment offers efficient performance across the load profile
Avoid Overspending § Over provisioning of ATSs and STSs § Excessive Redundancy at transformation layer § Too many system ties
Cost-Effective Solutions
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Utilize Proven Technology § Early adopters pay a price penalty § Outage costs exceed incremental savings from new or
leading edge technology Low Maintenance Systems § Lifecycle Cost - Purchase price not the only consideration
• Operations/energy cost • Maintenance requirements • Lifespan and overhaul timelines
Offer Resource Availability § Critical spare parts § Local, experienced technicians
Cost-Effective Solutions
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Proposed Electrical Solution
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Onsite Power Generation § N+R systems where R= 1 or 2 have proven effective § 1500 to 2000 kW Diesel EGs provide the most kW per dollar UPS Systems § 2N configuration has proven most reliable preventing costly outages § Allow for high efficiency across a load profile of 10-50% § Most have proven ability to handle a step load § 1000 to 1200 kW static UPS systems provide the most kW per dollar Critical Distribution § 2N UPS allows for independent critical distribution to IT devices Mechanical System § Designed to fit within EG balance of power and climate conditions § N+R systems where R= 1 or 2 have proven effective
Example of a Cost Effective Solution
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Simplified Electrical Solution
G
UPS System
Computer Room Cooling
House Power
Chilled Water Plant
Main Distribution
UPS System
Computer Room Cooling
House Power
Chilled Water Plant
U
A
A
A
A
B
B
B
Mech Distribution A
Mech Distribution BMain Distribution B
A
B
G
Critical Distribution Bus A
Critical Distribution Bus B
Side “A”
Side “B”
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§ Scenario – Data Center w/Legacy Chilled Water with CRAHs or CRACs § Goal – Improve Efficiency of CRAHs/CRACs § Options – Replace or Retrofit with VFD or Electronically Commutated
Fan Assembly (EC)
Cost Effective Example - CRAC/CRAH Retrofit
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Neither options change capacity of the cooling unit Both technologies proven Both options require control modification Cost
• Initial cost lower on VFD upgrade using existing squirrel cage fans
• EC fans offer improved fan performance • EC fan retrofit has significantly reduced maintenance
Result – EC fan assembly had 20-50% reduced fan energy, reduced maintenance and reduced
maintenance related risk
CRAC/CRAH Retrofit - Analysis
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Low Complexity and Low Cost may lead to high availability
§ Start with the End In Mind § New yet proven technologies are efficient and may
be cost effective
Reduced complexity, simplifies the design and lowers component count,
lowers cost and reduces the risk of human error
Summary
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For more information contact: Keith Klesner
[email protected] 720.214.6634
Questions?
© 2014 Uptime Institute 23