# What is the failover critera for multi region configuration

**URL:** <https://forums.foundationdb.org/t/what-is-the-failover-critera-for-multi-region-configuration/3674>\
**Category:** Development\
**Created:** [November 29, 2022, 9:00am UTC](https://forums.foundationdb.org/t/what-is-the-failover-critera-for-multi-region-configuration/3674 "2022-11-29T09:00:23Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![zhongyan](https://avatars.discourse-cdn.com/v4/letter/z/cab0a1/32.png) [@zhongyan](https://forums.foundationdb.org/u/zhongyan)\
**Post date:** [November 29, 2022, 9:00am UTC](https://forums.foundationdb.org/t/what-is-the-failover-critera-for-multi-region-configuration/3674/1 "2022-11-29T09:00:23Z")

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Hi there,  
I know fdb has the HA feature to handle datacenter failure, but I want to know what is the specific criteria to trigger failover between regions? more than half nodes in a DC unavailable? Looking for fdb experts input.

thanks