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Cloud Computing & DevOps vocabulary · Reliability and Incidents

Redundancy

Meaning in cloud computing & devops, with examples

/rɪˈdʌndənsi/nounCommon term

In cloud computing & devops, 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 system so that it stays up almost all the time, with no single part whose failure can stop the whole service.
  • failoverSwitching automatically or manually to a standby system, such as a database replica or a second region, when the main one fails.
  • 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 data kept separately so it can be restored if the original is lost, damaged, deleted by mistake or encrypted by an attacker.

This word in other fields

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

More terms: Reliability and Incidents

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