# Big Historian application

**URL:** <https://forum.inductiveautomation.com/t/big-historian-application/29349>\
**Category:** Ignition\
**Created:** [October 24, 2019, 1:00pm UTC](https://forum.inductiveautomation.com/t/big-historian-application/29349 "2019-10-24T13:00:19Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![vrautomation](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/vrautomation/32/11155_2.png) [@vrautomation](https://forum.inductiveautomation.com/u/vrautomation)\
**Post date:** [October 24, 2019, 1:00pm UTC](https://forum.inductiveautomation.com/t/big-historian-application/29349/1 "2019-10-24T13:00:19Z")

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Hello everyone!

Please share your experiences with the historian of Ignition. I’d like to ear about large scale historian (20000+ tags).  
Space requirements?  
Performances issues for writing?  
Performances issues for reading?  
etc ??

Thank you very much !