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# Hardlinks and Instant Moves (Atomic-Moves)
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## Description
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!!! info
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If you’re wondering why hard links aren’t working or why a simple move is taking far longer than it should.
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Here we will try to explain it.
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This Guide exist out of 4 Sections
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1. This page with a short description.
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1. [How to setup for](/Hardlinks/How-to-setup-for/) your installation method.
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1. [Examples](/Hardlinks/Examples/) what you should use for your path settings in your used applications.
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1. [Check if hardlinks are working](/Hardlinks/Check-if-hardlinks-are-working/)
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So you want one of the following ?
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- Instant moves (Atomic-Moves) during import of the Starr Apps (useful when using Usenet)?
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- You don't want to use twice the storage when using torrents. (hardlinks)?
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- You want to perma seed?
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Then Continue to [How to setup for](/Hardlinks/How-to-setup-for/) your installation method.
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## FAQ
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### What are Hardlinks
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??? faq "**What are hardlinks?** - [CLICK TO EXPAND]"
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- [**Short answer**] Having a file in multiple locations without using double your storage space.
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- [**Long answer**] Hard links are a way for a copy operation to be instant and not consume space for those additional copies.
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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.
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This means:
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- You can delete any "copy" w/o impacting the others.
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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".
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- Space is only regained when all "copies" are deleted.
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- Modifying the file will impact all "copies".
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For example, modifying the id3 tags of a .mp3 download after import would modify the download client "copy", resulting in breaking the torrent.
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[More info from Wikipedia, the free encyclopedia](https://en.wikipedia.org/wiki/Hard_link){:target="_blank" rel="noopener noreferrer"}
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!!! attention
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You can't create hard links for directories :bangbang:
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You can't cross file systems :bangbang:
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### What are Instant Moves (Atomic Moves)
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??? faq "**What are Instant Moves (Atomic Moves)?** - [CLICK TO EXPAND]"
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A real move and not a copy file from download folder to media folder and then delete file from download folder.
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### What are the Starr Apps
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??? faq "**What are the `Starr Apps`?** - [CLICK TO EXPAND]"
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Sonarr, Radarr, Lidarr, etc.
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