# Compression not working at all?

**URL:** <https://kopia.discourse.group/t/compression-not-working-at-all/3059>\
**Category:** Support\
**Created:** [June 30, 2024, 3:47pm UTC](https://kopia.discourse.group/t/compression-not-working-at-all/3059 "2024-06-30T15:47:34Z")\
**Posts on this page:** 10\
**Page:** 1

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**Author:** ![Jan\_Reinhardt](https://yyz2.discourse-cdn.com/free1/user_avatar/kopia.discourse.group/jan_reinhardt/32/1115_2.png) [@Jan\_Reinhardt](https://kopia.discourse.group/u/Jan_Reinhardt)\
**Post date:** [June 30, 2024, 3:47pm UTC](https://kopia.discourse.group/t/compression-not-working-at-all/3059/1 "2024-06-30T15:47:34Z")

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Hi,  
I am new to Kopia (running it as a Docker container). I have set up a repository and I am taking snapshots.  
But theyre all the same size i.e. uncompressed size, no matter how I change around the compression settings within the policies. 🤪

What am I doing wrong?  
Cheers, Jan

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**Author:** ![kapitainsky](https://yyz2.discourse-cdn.com/free1/user_avatar/kopia.discourse.group/kapitainsky/32/535_2.png) [@kapitainsky](https://kopia.discourse.group/u/kapitainsky)\
**Post date:** [June 30, 2024, 4:29pm UTC](https://kopia.discourse.group/t/compression-not-working-at-all/3059/2 "2024-06-30T16:29:42Z")

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> [@Jan\_Reinhardt](#):
>
> What am I doing wrong?

Nobody can guess. Unless somebody can see your screen. You provide absolutely zero details.

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<div class="post-metadata">

**Author:** ![Jan\_Reinhardt](https://yyz2.discourse-cdn.com/free1/user_avatar/kopia.discourse.group/jan_reinhardt/32/1115_2.png) [@Jan\_Reinhardt](https://kopia.discourse.group/u/Jan_Reinhardt)\
**Post date:** [June 30, 2024, 4:52pm UTC](https://kopia.discourse.group/t/compression-not-working-at-all/3059/3 "2024-06-30T16:52:30Z")

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Yes I am sorry about that.  
I would like to provide _every_ detail, but i dont know where to start. Screenshot of my policy settings? Screenshot of the snapshot details? Any logfile?

Thank you for looking into this.

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<div class="post-metadata">

**Author:** ![kapitainsky](https://yyz2.discourse-cdn.com/free1/user_avatar/kopia.discourse.group/kapitainsky/32/535_2.png) [@kapitainsky](https://kopia.discourse.group/u/kapitainsky)\
**Post date:** [June 30, 2024, 5:19pm UTC](https://kopia.discourse.group/t/compression-not-working-at-all/3059/4 "2024-06-30T17:19:24Z")

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What makes you believe that:

> [@Jan\_Reinhardt](#):
>
> But theyre all the same size i.e. uncompressed size, no matter how I change around the compression settings within the policies. 🤪

How you checked this size?

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<div class="post-metadata">

**Author:** ![Jan\_Reinhardt](https://yyz2.discourse-cdn.com/free1/user_avatar/kopia.discourse.group/jan_reinhardt/32/1115_2.png) [@Jan\_Reinhardt](https://kopia.discourse.group/u/Jan_Reinhardt)\
**Post date:** [June 30, 2024, 5:58pm UTC](https://kopia.discourse.group/t/compression-not-working-at-all/3059/5 "2024-06-30T17:58:31Z")

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I have watched the tutorial video on the [kopia.io](http://kopia.io) homepage. As I take it, the „Size“ when looking at your snapshot refers to the compressed size of that snapshot‘s contents.  
When changing compression settings in policies, the displayed size does not change at all.

 ![IMG_1820](https://global.discourse-cdn.com/free1/uploads/kopia/original/2X/a/a35ec663c0ecaa8edb0b3b7e1a4c7b4da602b2dc.jpeg)

**But** I have now checked the actual folder contents of that repository via

> du -h

and it is much smaller: only 2.1 GB 🫣  
Seems like compression is working, and the size display is wrong?

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<div class="post-metadata">

**Author:** ![kapitainsky](https://yyz2.discourse-cdn.com/free1/user_avatar/kopia.discourse.group/kapitainsky/32/535_2.png) [@kapitainsky](https://kopia.discourse.group/u/kapitainsky)\
**Post date:** [June 30, 2024, 6:01pm UTC](https://kopia.discourse.group/t/compression-not-working-at-all/3059/6 "2024-06-30T18:01:09Z")

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> [@Jan\_Reinhardt](#):
>
> and the size display is wrong?

It shows size of your snapshot data. Not size of data in repository.

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<div class="post-metadata">

**Author:** ![Jan\_Reinhardt](https://yyz2.discourse-cdn.com/free1/user_avatar/kopia.discourse.group/jan_reinhardt/32/1115_2.png) [@Jan\_Reinhardt](https://kopia.discourse.group/u/Jan_Reinhardt)\
**Post date:** [June 30, 2024, 6:02pm UTC](https://kopia.discourse.group/t/compression-not-working-at-all/3059/7 "2024-06-30T18:02:00Z")

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So there is no display in Kopia showing you compression rates?

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<div class="post-metadata">

**Author:** ![kapitainsky](https://yyz2.discourse-cdn.com/free1/user_avatar/kopia.discourse.group/kapitainsky/32/535_2.png) [@kapitainsky](https://kopia.discourse.group/u/kapitainsky)\
**Post date:** [June 30, 2024, 6:06pm UTC](https://kopia.discourse.group/t/compression-not-working-at-all/3059/8 "2024-06-30T18:06:11Z")

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run:

```auto
$ kopia content stats

```

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<div class="post-metadata">

**Author:** ![Jan\_Reinhardt](https://yyz2.discourse-cdn.com/free1/user_avatar/kopia.discourse.group/jan_reinhardt/32/1115_2.png) [@Jan\_Reinhardt](https://kopia.discourse.group/u/Jan_Reinhardt)\
**Post date:** [June 30, 2024, 6:09pm UTC](https://kopia.discourse.group/t/compression-not-working-at-all/3059/9 "2024-06-30T18:09:24Z")

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Thank you for all you help!

Just one final question: I have deleted all snapshots in the Kopia UI. But they are still present on my drive: there is still 2.1 GB in that folder which should be empty now?

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<div class="post-metadata">

**Author:** ![kapitainsky](https://yyz2.discourse-cdn.com/free1/user_avatar/kopia.discourse.group/kapitainsky/32/535_2.png) [@kapitainsky](https://kopia.discourse.group/u/kapitainsky)\
**Post date:** [June 30, 2024, 6:12pm UTC](https://kopia.discourse.group/t/compression-not-working-at-all/3059/10 "2024-06-30T18:12:27Z")

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Actual data from repository is deleted during maintenance runs. It can take some time before it is truly deleted. It is required as a safeguard in lock free, multiple clients backup solution like kopia.

More details:

> **[Maintenance](https://kopia.io/docs/advanced/maintenance/)**
>
> Fast and Secure Open-Source Backup Software for Windows, Mac, and Linux
