# Alarm on redundancy when Master down

**URL:** <https://forum.inductiveautomation.com/t/alarm-on-redundancy-when-master-down/72856>\
**Category:** Ignition\
**Tags:** redundancy, ignition81\
**Created:** [April 25, 2023, 8:49am UTC](https://forum.inductiveautomation.com/t/alarm-on-redundancy-when-master-down/72856 "2023-04-25T08:49:53Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![arjunrajas](https://avatars.discourse-cdn.com/v4/letter/a/6de8d8/32.png) [@arjunrajas](https://forum.inductiveautomation.com/u/arjunrajas)\
**Post date:** [April 25, 2023, 8:49am UTC](https://forum.inductiveautomation.com/t/alarm-on-redundancy-when-master-down/72856/1 "2023-04-25T08:49:53Z")

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Hi i am trying to trigger an alarm when the master or backup gateway is down from which tag can i trigger it

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**Author:** ![deon.korb](https://avatars.discourse-cdn.com/v4/letter/d/8c91f0/32.png) [@deon.korb](https://forum.inductiveautomation.com/u/deon.korb)\
**Post date:** [April 25, 2023, 9:31am UTC](https://forum.inductiveautomation.com/t/alarm-on-redundancy-when-master-down/72856/2 "2023-04-25T09:31:36Z")

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You can use the system tag for redundancy:  
[System Tags - Ignition User Manual 8.1 - Ignition Documentation (inductiveautomation.com)](https://docs.inductiveautomation.com/display/DOC81/System+Tags)