microsoft power point 6. redundancy
TRANSCRIPT
Redundancy
Jeffrey Lam RCDD
Different Tiers of data centers
HDA
EDA
ZDA
Redundancy
Manhole
MDA
ER
MDA
ER
Manhole
HDAHDA HDA
EDA EDA EDA
ZDA
TIER 1
TIER 2
TIER 3
TIER 4
LEGEND
99.995%DO WE REALLY NEED SUCH
HIGH AVAILABILTY???
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
CONSIDER THIS...
Redundancy
Normal
OperationN
100kVA
100kVA
N200kVA
Data Center
with
200kVA
power
requirement
1 UPS of 200kVA
capacity
2 UPS of 100kVA
capacity
A data center requires 200kVA of UPS power.
Which is the preferred design?
Are there any redundancy?
QUIZ
#1
Redundancy
100kVA
100kVA
100kVA
100kVA
100kVA
100kVA
100kVA
100kVA
100kVA
100kVA
100kVA
100kVA
100kVA
100kVA
100kVA
Redundant UPS systems delivering 200kVA power.
N
N+1
2N200kVA
power
required at
datacenter
Data Center
2(N+1)
Redundancy
100kVA
100kVA
100kVA
100kVA
100kVA
100kVA
100kVA
100kVA
100kVA
100kVA
100kVA
100kVA
100kVA
100kVA
100kVA
Component failure
Power failure
Normal Operation
Normal Operation
Normal Operation
Data Center
N
N+1
2N
2(N+1)
Redundancy
100kVA
100kVA
100kVA
100kVA
100kVA
100kVA
100kVA
100kVA
100kVA
100kVA
100kVA
100kVA
100kVA
100kVA
100kVA
Path failure
Power failure
Power failure
Normal Operation
Normal Operation
N
N+1
2N
2(N+1)
Data Center
Redundancy
100kVA
100kVA
100kVA
100kVA
100kVA
100kVA
100kVA
100kVA
100kVA
100kVA
DUAL FAILURE = components & path failure
Power Failure
Normal
Operation
2N
2(N+1)
Data Center
Redundancy
100kVA
100kVA
100kVA
100kVA
100kVA
100kVA
Data Center
QUIZ
#2
2(N+1)
