Data Center Fault Domain Configuration Across Redundant Electrical Zones
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Solution Overview
Problem
Existing data center fault domains are not electrically isolated, leading to potential loss of redundancy and performance when electrical failures occur, as multiple servers in a domain may share the same power source.
Innovation Solution
Implementing a data center configuration that assigns logical fault domains to electrical zones, ensuring each zone provides redundant electrical power supply across domains, even in the event of power failures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple servers in a fault domain share the same power source, then device complexity is reduced and ease of operation is improved, but reliability deteriorates because electrical failures can cause loss of fault domain redundancy
Solution Approach 1:
The patent segments the electrical power distribution system into separate electrical zones, where each zone is supplied by a distinct power source. This segmentation ensures that servers in different fault domains can be powered independently, preventing a single point of failure from compromising the entire fault domain. The segmentation principle directly addresses the reliability issue by isolating power supply paths while maintaining manageable complexity through structured zone definitions.
Solution Approach 2:
The patent applies local quality by assigning specific power sources to specific electrical zones based on the operational requirements and failure scenarios of different fault domains. Each electrical zone is configured with tailored power supply characteristics appropriate to its function and risk profile, allowing optimized reliability for critical domains while maintaining simpler configurations for less critical areas.
2Reliability
If fault domains are electrically isolated into separate zones with redundant power supplies, then reliability is improved by preventing propagation of electrical failures, but device complexity increases due to additional configuration requirements
Solution Approach 1:
The patent divides the power distribution infrastructure into discrete electrical zones, each with its own power source and failure isolation mechanisms. This segmentation enables targeted redundancy where each zone can be independently configured and managed, reducing the complexity burden compared to a fully isolated system while still providing comprehensive protection against electrical failures.
Solution Approach 2:
The patent implements preliminary configuration of electrical zones with predetermined power source assignments and redundancy settings before failures occur. By pre-configuring the zone topology and power supply relationships, the system eliminates the need for complex real-time decision-making during failure events, thereby reducing operational complexity while maintaining high resiliency.
3Ease of operation
If a single power source is used for multiple fault domains, then ease of operation is improved and device complexity is reduced, but harmful factors increase as electrical failures can affect all domains simultaneously
Solution Approach 1:
The patent segments the power distribution architecture into isolated electrical zones that correspond to or supersede fault domain boundaries. This segmentation limits the propagation of electrical failures to specific zones only, preventing system-wide outages while maintaining relatively simple power management operations through standardized zone configurations and automated failover mechanisms.
Solution Approach 2:
The patent introduces electrical zones as intermediary structures between power sources and fault domains. These zones act as mediators that provide electrical isolation while maintaining manageable complexity through standardized interfaces and automated power management protocols, thereby reducing the direct impact of electrical failures without requiring overly complex manual intervention.
Data Source
AI summary
A computer system may receive a layout of a data center, the layout of the data center identifying physical locations of a plurality of server racks, electrical distribution feeds, and uninterruptible power supplies. The computer system may receive a fault domain configuration for the datacenter, the fault domain configuration identifying virtual locations of a plurality of logical fault domains for distributing one or more instances so that the instances are stored on independent physical hardware devices within a single availability fault domain. The computer system may determine the configuration for the data center by assigning the plurality of fault domains to a plurality of electrical zones, wherein each electrical zone provides a redundant electrical power supply across the plurality of logical fault domains in an event of a failure of one or more electrical distribution feeds. The computer system may display the configuration for the data center on a display.