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TRaSH-Guides/docs/Hardlinks/Hardlinks-and-Instant-Moves.md

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# Hardlinks and Instant Moves (Atomic-Moves)
## Description
!!! info
If youre wondering why hard links arent working or why a simple move is taking far longer than it should.
Here we will try to explain it.
This Guide exist out of 4 Sections
1. This page with a short description.
1. [How to setup for](/Hardlinks/How-to-setup-for/) your installation method.
1. [Examples](/Hardlinks/Examples/) what you should use for your path settings in your used applications.
1. [Check if hardlinks are working](/Hardlinks/Check-if-hardlinks-are-working/)
So you want one of the following ?
- Instant moves (Atomic-Moves) during import of the Starr Apps (useful when using Usenet)?
- You don't want to use twice the storage when using torrents. (hardlinks)?
- You want to perma seed?
Then Continue to [How to setup for](/Hardlinks/How-to-setup-for/) your installation method.
## FAQ
### What are Hardlinks
??? question "**What are hardlinks?** - [Click to show/hide]"
- [**Short answer**] Having a file in multiple locations without using double your storage space.
- [**Long answer**] Hard links are a way for a copy operation to be instant and not consume space for those additional copies.
Every file is a hard link: some metadata that points at blocks on the file system, **which is why they're restricted to the same file system**. There can be as many metadata files pointing at those blocks as needed and the blocks know how many links point to them. Once the blocks have 0 links, they're considered deleted.
This means:
- You can delete any "copy" w/o impacting the others.
Your download client can remove it's "copy" w/o impacting the library "copy". The library "copy" can be removed by Plex or Sonarr/Radarr or yourself w/o impacting the download client "copy".
- Space is only regained when all "copies" are deleted.
- Modifying the file will impact all "copies".
For example, modifying the id3 tags of a .mp3 download after import would modify the download client "copy", resulting in breaking the torrent.
[More info from Wikipedia, the free encyclopedia](https://en.wikipedia.org/wiki/Hard_link){:target="_blank" rel="noopener noreferrer"}
!!! warning
You can't create hard links for directories :bangbang:
You can't cross file systems :bangbang:
### What are Instant Moves (Atomic Moves)
??? question "**What are Instant Moves (Atomic Moves)?** - [Click to show/hide]"
A real move and not a copy file from download folder to media folder and then delete file from download folder.
### What are the Starr Apps
??? question "**What are the `Starr Apps`?** - [Click to show/hide]"
Sonarr, Radarr, Lidarr, etc.