# Problems understanding and implementing Persistent Storage

**URL:** https://discourse.nodered.org/t/problems-understanding-and-implementing-persistent-storage/80527
**Category:** General
**Created:** [13 August 2023 01:09 UTC](https://discourse.nodered.org/t/problems-understanding-and-implementing-persistent-storage/80527 "2023-08-13T01:09:07Z")
**Posts on this page:** 1
**Showing post:** 2

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### Author: ![zenofmud](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/zenofmud/32/316_2.png) [@zenofmud](https://discourse.nodered.org/u/zenofmud)
#### Post date: [13 August 2023 09:16 UTC](https://discourse.nodered.org/t/problems-understanding-and-implementing-persistent-storage/80527/2 "2023-08-13T09:16:12Z")

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See if this helps you. It's something I wrote awhile ago but still hold up.

> [@A guide to understanding 'Persistent Context'](https://discourse.nodered.org/t/a-guide-to-understanding-persistent-context/4115):
>
> This is something I wrote up after playing with the context options. I've filed a PR with some of this added to the Node-RED documentation but thought I'd release it here also. I hope people find it useful. Paul A guide to understanding 'Persistent Context' Prior to Node-RED v0.19.0, data could be stored in context as a global, flow or node. This was stored in memory and would be reset with a restart of Node-RED. As of v.0.19.0 you can now store node, flow and global context data in memory O…

and the here is a link to the documentation:  
[https://nodered.org/docs/api/context/](https://nodered.org/docs/api/context/)

and also read this:  
[https://nodered.org/docs/api/context/store/localfilesystem](https://nodered.org/docs/api/context/store/localfilesystem)  
and pay attention to the `options!!!` (hint hint)

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