Single Point of Failure

Single Point of Failure

A Single Point of Failure, (SPOF), is a part of a system which, if it fails, will stop the entire system from working. They are undesirable in any system whose goal is high availability, be it a network, software application or other industrial system.

The assessment of a potentially single location of failure identifies the critical components of a complex system, that would provoke a total systems failure in case of malfunction. Highly reliable systems may not rely on any such component.

The strategy to prevent from total systems failure is
* Reduced ComplexityComplex systems shall be designed according to principles decomposing complexity to the required level.
* RedundancyRedundant Systems include a double instance for any critical component with an automatic and robust switch or handle to turn control over to the other well functioning unit
* DiversityDiversity design is a special redundancy concept that cares for the doubling of functionality in completely different design setups of components to decrease the probability that redundant components might fail both at the same time under identical condition.
* TransparencyWhatever systems design will deliver, long term reliability is based on transparent and comprehensive documentation.

See also

* Human reliability
* Safety engineering
* Reliability engineering
* Reliability theory
* Reliable systems design
* Reliability modelling

Wikimedia Foundation. 2010.

Игры ⚽ Нужно сделать НИР?

Look at other dictionaries:

  • Single point of failure — Point individuel de défaillance Un point individuel de défaillance (Single Point of Failure ou SPOF en anglais) est un point d un système informatique dont le reste du système est dépendant et dont une panne entraîne l arrêt complet du système.… …   Wikipédia en Français

  • Single point of failure — In this diagram the router is a single point of failure for the communication network between computers A single point of failure (SPOF) is a part of a system that, if it fails, will stop the entire system from working.[1] They are undesirable in …   Wikipedia

  • Single Point of Failure — Unter einem Single Point of Failure, kurz SPOF, deutsch etwa einzelne Stelle des Scheiterns, versteht man einen Bestandteil eines technischen Systems, dessen Ausfall den Ausfall des gesamten Systems nach sich zieht. Mögliche Störungspunkte in… …   Deutsch Wikipedia

  • Single point of failure — Un enrutador podría comportarse como un SPOF en una red de comunicación entre computadoras. Un single point of failure o SPOF ( punto único de fallo ) es un componente de un sistema que tras un fallo en su funcionamiento ocasiona un fallo global… …   Wikipedia Español

  • single point of failure — noun a component in a device, or a point in a network, that, if it were to fail would cause the entire device or network to fail; normally eliminated by adding redundancy Syn: SPF …   Wiktionary

  • Point individuel de défaillance — Un point unique de défaillance (Single Point of Failure ou SPOF en anglais) est un point d un système informatique dont le reste du système est dépendant et dont une panne entraîne l arrêt complet du système. Le point Unique de défaillance a… …   Wikipédia en Français

  • Failure — For other uses, see Failure (disambiguation). Fail redirects here. For the Irish Republican Party, see Fianna Fáil …   Wikipedia

  • Failure in the intelligence cycle — or intelligence failure, while never defined in texts, can be understood to be the outcome of the inadequacies within the intelligence cycle. The intelligence cycle itself consists of six steps that are constantly in motion. The six steps are:… …   Wikipedia

  • Single-wire earth return — (SWER) or single wire ground return is a single wire transmission line for supplying single phase electrical power from an electrical grid to remote areas at low cost. It is principally used for rural electrification, but also finds use for… …   Wikipedia

  • Cascading failure — A cascading failure is failure in a system of interconnected parts, where the service provided depends on the operation of a preceding part, and the failure of a preceding part can trigger the failure of successive parts. Redundant parts can… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”