# Redundancy in Ignition

**URL:** <https://forum.inductiveautomation.com/t/redundancy-in-ignition/11139>\
**Category:** General Discussion\
**Created:** [January 28, 2016, 4:47pm UTC](https://forum.inductiveautomation.com/t/redundancy-in-ignition/11139 "2016-01-28T16:47:53Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![amolinse](https://avatars.discourse-cdn.com/v4/letter/a/958977/32.png) [@amolinse](https://forum.inductiveautomation.com/u/amolinse)\
**Post date:** [January 28, 2016, 4:47pm UTC](https://forum.inductiveautomation.com/t/redundancy-in-ignition/11139/1 "2016-01-28T16:47:53Z")

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I’m trying to create a script that get active when the server fail and the backup server starts. I have tryed with the tags isMaster and Role. But when I force a failover in my server and the backup server actives nothing happen. Both tags keep their old values.

Does anyone know which tags I can use to control when my application is runned by the backup server? Or if you have another trick, it is welcome too.

Thanks!