Failure Domain
A concept in system reliability referring to the boundary of the scope that may be affected when a component fails. In cloud environments, failure domains can be divided by physical or logical layers.
Core Facts
Timeline (last 90 days)
A fault domain refers to the maximum scope that a single failure in the system can affect; when PODs are the delivery unit, power, cooling and network are usually isolated per unit, so a switch or power distribution failure within one POD will not affect other units.
Cloud providers isolate fault domains through multi-availability-zone deployment, but if resources rented by different customers fall within the same fault domain, a "shared fault domain" is formed.
A failure domain refers to the set of components or the service scope in a system that may be affected simultaneously by a single failure event; the core goal of failure domain partitioning is to confine the impact of a single failure to the smallest possible boundary.
Modern data centers usually partition failure domains by rack, room module, or availability zone, and require redundant copies across failure domains.
Failure Domain refers to the scope within a system or set of components that will fail simultaneously once a failure occurs; avoiding placing primary and backup resources in the same failure domain is a key principle of high-availability architecture.
All Facts (5)
Failure Domain refers to the scope within a system or set of components that will fail simultaneously once a failure occurs; avoiding placing primary and backup resources in the same failure domain is a key principle of high-availability architecture.
65%UnverifiedA fault domain refers to the maximum scope that a single failure in the system can affect; when PODs are the delivery unit, power, cooling and network are usually isolated per unit, so a switch or power distribution failure within one POD will not affect other units.
50%UnverifiedCloud providers isolate fault domains through multi-availability-zone deployment, but if resources rented by different customers fall within the same fault domain, a "shared fault domain" is formed.
50%UnverifiedA failure domain refers to the set of components or the service scope in a system that may be affected simultaneously by a single failure event; the core goal of failure domain partitioning is to confine the impact of a single failure to the smallest possible boundary.
50%UnverifiedModern data centers usually partition failure domains by rack, room module, or availability zone, and require redundant copies across failure domains.
50%