Which of the following is considered an internal redundancy for a data center?
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A. B. C. D.B.
Chillers and cooling systems are internal to a data center and its operations, and as such they are considered an internal redundancy.
Power feeds, network circuits, and generators are all external to a data center and provide utility services to them, which makes them an external redundancy.
Internal redundancy for a data center refers to the duplication of critical components and systems within the data center itself, to ensure that if one component fails, there is a backup that can take over and prevent any downtime or data loss.
Out of the given options, Power feeds, Chillers, Network circuits, and Generators are all critical components of a data center infrastructure.
Power feeds refer to the electrical power supply that is required to keep the data center running. Redundancy in power feeds can be achieved by having multiple power sources, such as utility power and backup generators. This ensures that if one power source fails, the data center can continue to operate using the other power source.
Chillers are responsible for maintaining the temperature and humidity levels in the data center. Redundancy in chillers can be achieved by having multiple cooling systems, such as a primary chiller and a backup chiller. This ensures that if one chiller fails, the backup chiller can take over and prevent any damage to the equipment.
Network circuits refer to the connections between the data center and the outside world. Redundancy in network circuits can be achieved by having multiple connections from different providers or using technologies such as load balancing and failover. This ensures that if one connection fails, the data center can continue to communicate with the outside world using the other connections.
Generators are backup power sources that can be used in case of a power outage. Redundancy in generators can be achieved by having multiple generators or by having a generator with multiple power sources. This ensures that if one generator fails, the backup generator can take over and keep the data center running.
Therefore, out of the given options, all four components are critical for a data center's operation, but the answer that specifically refers to internal redundancy is the Chillers, as they are an internal component that can be duplicated to ensure redundancy within the data center.