# Hubs storage ability

**URL:** <https://community.tempest.earth/t/hubs-storage-ability/5699>\
**Category:** Tempest Owners\
**Tags:** hub\
**Created:** [April 3, 2020, 4:25pm UTC](https://community.tempest.earth/t/hubs-storage-ability/5699 "2020-04-03T16:25:53Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![peter](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/peter/32/1365_2.png) [@peter](https://community.tempest.earth/u/peter)\
**Post date:** [April 4, 2020, 10:43am UTC](https://community.tempest.earth/t/hubs-storage-ability/5699/3 "2020-04-04T10:43:12Z")

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This was a post from David back in 2018:

> [@Offline data storage during internet outages](https://community.tempest.earth/t/offline-data-storage-during-internet-outages/538/6):
>
> So, both the end device (AIR & SKY) and the the Hub will store data when necessary in a first-in, first-out buffer. The AIR & SKY will store several hours of data if the Hub is without power or out of range. And the Hub will store several weeks of data if the Internet connection is down. Once the connection is restored, the data will backfill.
> 
> - AIR will store about 2.5 hours of data (if it can’t reach the Hub)
> - SKY will store about 1.5 hours of data (if it can’t reach the Hub)
> - With one AIR & one SKY, Hub will store about 8 days of data (if it can’t reach the Internet)

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