# About the DRBD Reactor category

**URL:** <https://forums.linbit.com/t/about-the-drbd-reactor-category/19>\
**Category:** DRBD Reactor\
**Created:** [March 19, 2024, 7:28pm UTC](https://forums.linbit.com/t/about-the-drbd-reactor-category/19 "2024-03-19T19:28:29Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![michael](https://yyz1.discourse-cdn.com/flex003/user_avatar/forums.linbit.com/michael/32/16_2.png) [@michael](https://forums.linbit.com/u/michael)\
**Post date:** [March 19, 2024, 7:28pm UTC](https://forums.linbit.com/t/about-the-drbd-reactor-category/19/1 "2024-03-19T19:28:29Z")

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DRBD Reactor is a daemon consisting of a core that handles DRBD events processing, and plugins that can react on changes in a DRBD resource. A popular use for DRBD Reactor is as an alternative cluster resource manager (CRM) to create highly available resources by using its promoter plugin.

Helpful DRBD Reactor resources:

- DRBD Reactor chapter in the [_DRBD User’s Guide_](https://linbit.com/drbd-user-guide/drbd-guide-9_0-en/#ch-drbd-reactor)
- [DRBD Reactor open source codebase on GitHub](https://github.com/LINBIT/drbd-reactor)
- Manual pages related to the locally installed version of DRBD Reactor, its plugins, and related utilities: `man drbd-reactor<Tab>`
- Important release announcements about DRBD Reactor and other LINBIT software through the [drbd-announce](https://lists.linbit.com/listinfo/drbd-announce) email list