# How to use host redundancy to improve service reliability and availability

DevFeed: [How to use host redundancy to improve service reliability and availability](<https://devfeed.tech/articles/how-to-use-host-redundancy-to-improve-service-reliability-and-availability-11643.md>)

Original publisher: [Read original article](<https://www.gremlin.com/blog/how-to-use-host-redundancy-to-improve-service-reliability-and-availability>)

Author: Andre Newman

Published: 2024-02-22T00:00:00Z

Content type: article

Language: en

Sources: [Gremlin Blog](<https://devfeed.tech/sources/gremlin-blog.md>)

Topics: [site-reliability-engineering](<https://devfeed.tech/topics/site-reliability-engineering.md>), [Availability](<https://devfeed.tech/topics/availability.md>), [Replication](<https://devfeed.tech/topics/replication.md>), [servers](<https://devfeed.tech/topics/servers.md>), [cloud-computing](<https://devfeed.tech/topics/cloud-computing.md>), [Provisioning](<https://devfeed.tech/topics/provisioning.md>), [Infrastructure as code](<https://devfeed.tech/topics/infrastructure-as-code.md>)

Tags: [availability](<https://devfeed.tech/tags/availability.md>), [chaos-engineering](<https://devfeed.tech/tags/chaos-engineering.md>), [cloud](<https://devfeed.tech/tags/cloud.md>), [cloud-computing](<https://devfeed.tech/tags/cloud-computing.md>), [how-to](<https://devfeed.tech/tags/how-to.md>), [iac](<https://devfeed.tech/tags/iac.md>), [load-balancer](<https://devfeed.tech/tags/load-balancer.md>), [outages](<https://devfeed.tech/tags/outages.md>), [provisioning](<https://devfeed.tech/tags/provisioning.md>), [replication](<https://devfeed.tech/tags/replication.md>), [servers](<https://devfeed.tech/tags/servers.md>)

## AI overview

This article explains how host redundancy improves service reliability and availability. It describes distributing applications across multiple hosts, replicating data and configuration, using a load balancer or API gateway, and testing resilience to host failures.

## Source excerpt

Learn how to prepare for--and become resilient to--host and instance outages using Gremlin.