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Software Engineering vocabulary · Debugging and Troubleshooting

Redundancy

Meaning in software engineering, with examples

/rɪˈdʌndənsi/nounCommon term

In software engineering, redundancy means: Having extra copies of servers, network links, disks or data, so that the system keeps working if one of them fails.

In Turkish: yedeklilik, fazlalık, artıklık

How it is used

Engineers 'build in' or 'add' redundancy. 'N+1' means one more unit than you need. The adjective is 'redundant': 'redundant power supplies'. The goal is to avoid a single point of failure.

Example sentences

  1. We added redundancy by running two NAT gateways instead of one.

  2. The network has redundant links, so cutting one cable didn't cause an outage.

Common collocations

  • build in redundancy
  • redundant system
  • single point of failure
  • N+1 redundancy
  • high availabilityDesigning a database system so that it keeps working with very little downtime, even if a server, disk or data center fails.
  • failoverSwitching work from a failed primary database server to a standby or replica so that the application can keep running.
  • availability zoneOne of several separate data center locations inside a cloud region, each with its own power and network, so a failure in one should not affect the others.
  • backupA copy of a database saved at a certain moment so that the data can be brought back after a failure, a mistake or an attack.

This word in other fields

The same English word can have a different meaning in another field:

More terms: Debugging and Troubleshooting

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