Maximum Availability and Reliability
Power redundancy for servers with multiple power supplies
Most servers provide multiple power supplies for N+1 redundancy. To maintain high availability of the system when considering power, a redundant configuration as offered with the Esprit Power Cluster is better than traditional N+1 redundant UPSs:
Configuration | Comments | |
1 | Single point of failure | Traditional redundant UPSs are paralleled at their outputs and provide |
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| a worrisome single point of failure. |
2 | Redundant power paths | With Esprit, power sharing is achieved within each server on the DC bus. |
3 | Redundant power sources | Input power connections of servers will be connected to 2 (or 3) different Esprit |
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| modules, providing 2 (or 3) different sources, eliminating a single point of failure. |
| Esprit, for the first time, provides | MGE’s advanced engineering & design significantly reduces the component |
| total power availability combined | count for high availability and reliability at an affordable price. Traditional N+1 |
| with maximum reliability | UPS redundancy can provide power availability at the expense of reliability with |
|
| multiple |
The Power Cluster Advantage
Traditional N+1 | N+1 |
Redundant UPS | Redundant Server |
A
1
B
| MGE Esprit |
| N+1 |
| Power Cluster |
| Redundant Server |
2 | 3 | A |
2 | 3 | B |
Batteries UPS
Redundant DC Power Supplies
CPUs | Batteries | UPS | Redundant DC | CPUs |
| Power Supplies |
◗Select a 4.5 kVA Esprit Power Cluster
◗ Connect the first power supply A | of each server to the Esprit | X |
◗ Connect the second power supply | B of each server to the Esprit Y | |
◗ Connect the third power supply C | of each server to the Esprit | Z |
◗Connect each Esprit to a separate wall outlet.
A B C | A B C | A B C | A B C | A B C |
XYZ
