# Replication or Alternate Capacity

> The requirement that duplicate copies or spare capacity exist to take over when a component fails.

Record: `lexicon:replication-or-alternate-capacity`
Kind: constraint
Layer: [Correctness Core](https://banes-lab.com/records/layer/correctness-core.md)
Canonical: https://banes-lab.com/ontology/lexicon#lexicon-replication-or-alternate-capacity

Listed in [Lexicon terms](https://banes-lab.com/api/records/lexicon.md), after [Single Instance Dependency](https://banes-lab.com/records/lexicon/single-instance-dependency.md) and before [Consistency Lag](https://banes-lab.com/records/lexicon/consistency-lag.md).

## Category

- [Self-Healing / Recovery / Deployment Safety](https://banes-lab.com/records/lexicon-category/self-healing-recovery-deployment-safety.md)

## Required by

- [Redundancy](https://banes-lab.com/records/architecture/redundancy.md)

## Linked from

- [Self-Healing / Recovery / Deployment Safety](https://banes-lab.com/ontology/principles/architecture-category-self-healing-recovery-deployment-safety.md)