Redundancy Datacenter Design
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This document discusses different tiers of data center redundancy and UPS system designs. Tier 1 has the lowest redundancy and highest risk of downtime, while Tier 4 has the highest redundancy and lowest risk of downtime of only 26 minutes per year. A 200kVA data center could use a single UPS, an N+1 redundant system with two 100kVA UPS, a 2N redundant system with four 100kVA UPS, or a 2(N+1) redundant system with five 100kVA UPS. The 2(N+1) system can withstand both component and dual path failures to maintain continuous power.
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Redundancy Datacenter Design
- 2. Different Tiers of data centers
- 3. Redundancy Manhole Manhole LEGEND TIER 1 ER ER TIER 2 MDA MDA TIER 3 TIER 4 HDA HDA HDA ZDA HDA ZDA EDA EDA EDA EDA
- 4. 99.995% DO WE REALLY NEED SUCH HIGH AVAILABILTY??? CONSIDER THIS... If systems are up… Then yearly downtime is... 99.671% 1 day, 4 hours, 49 minutes 99.741% 23 hours, 41 minutes 99.982% 1 hour, 34 minutes 99.995% 26 minutes
- 5. Redundancy A data center requires 200kVA of UPS power. Which is the preferred design? Z #1 QUI 200kVA Data Center 1 UPS of 200kVA N with 200kVA capacity power requirement Normal N 100kVA 2 Operation UPS of 100kVA 100kVA capacity Are there any redundancy?
- 6. Redundancy 100kVA N 100kVA 100kVA 100kVA N+1 100kVA 100kVA 100kVA 200kVA 100kVA 2N power 100kVA 100kVA required at 100kVA datacenter 100kVA 100kVA 2(N+1) 100kVA Data Center 100kVA Redundant UPS systems delivering 200kVA power.
- 7. Redundancy 100kVA N Power failure 100kVA 100kVA 100kVA N+1 Normal Operation 100kVA 100kVA 100kVA 2N Normal Operation 100kVA 100kVA 100kVA 100kVA 2(N+1) Normal Operation 100kVA 100kVA 100kVA Data Center 100kVA Component failure
- 8. Redundancy 100kVA N Power failure 100kVA 100kVA 100kVA N+1 Power failure 100kVA 100kVA 100kVA 2N Normal Operation 100kVA 100kVA 100kVA 100kVA 2(N+1) Normal Operation 100kVA 100kVA 100kVA Data Center 100kVA Path failure
- 9. Redundancy 100kVA 100kVA 100kVA 2N Power Failure 100kVA 100kVA 100kVA 100kVA 2(N+1) Normal 100kVA Operation 100kVA Data Center 100kVA DUAL FAILURE = components & path failure
- 10. Redundancy Z #2 QUI 100kVA 100kVA 100kVA 2(N+1) 100kVA 100kVA Data Center 100kVA
- 11. THANK YOU! Jeffrey Lam RCDD Jeffrey.lam@anixter.com +65 97849870