A term used to describe a unique hardware compponent, data path or source of a service, activity, and/or process. There is no alternate component and a loss of that element could lead to a catestrophic failure of a critical function.
a hardware or software component that is part of a critical path but is not backed up by redundant components
This is where one part of a system will make the whole system fail. In cluster computing this is typically the batch manager, which if it fails the compute resource are no longer accessible by users.
the weakest point in a product or service whose failure can compromise its ability to function.
Single point of failure is a location in a redundant system where a single powers failure results in loss of electrical power to the critical load.
Any component in your environment that would block data or applications if it failed.
The only (single) source of a service, activity and/or process i.e. there is no alternative, whose failure would lead to the total failure of a Mission Critical Activity and/or dependency.
A single hardware or software component that prevents a cluster from functioning if the component fails. Administrators try to avoid single points of failure through redundancy and backup systems.
(SPOF). Any single element in the Highly Available system that may fail.
A hardware or software item that causes an application or a whole system to become unavailable if it fails. High availability design attempts to eliminate SPOF through redundancy, recovery, or failover.
A component or location in a redundant system where a single, credible failure could lead to loss of electrical power to the critical load.