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Christoph Cullmann 2025-07-19 19:52:23 +02:00
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content/posts/borg-backup-continued/index.md
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@ -27,7 +27,7 @@ Naturally, for larger increments, the upload is the restricting part here, this
Let's see what happens if I backup my data again after I bought some music album online and the usual stuff that happens in a day:
<pre>
{{< highlight bash >}}
Time (start): Fri, 2021-09-10 20:38:39
Time (end): Fri, 2021-09-10 20:39:19
Duration: 40.65 seconds
@ -41,13 +41,13 @@ All archives: 1.82 TB 1.77 TB 240.18 GB
Unique chunks Total chunks
Chunk index: 148438 1118042
------------------------------------------------------------------------------
</pre>
{{< / highlight >}}
Just the expected, more or less the size of my new album + a bit more given other minor things in my home did change, like this blog post ;=)
More or less the same happens for my remote increment:
<pre>
{{< highlight bash >}}
Time (start): Fri, 2021-09-10 20:38:32
Time (end): Fri, 2021-09-10 20:40:52
Duration: 2 minutes 20.11 seconds
@ -61,7 +61,7 @@ All archives: 2.38 TB 2.32 TB 240.41 GB
Unique chunks Total chunks
Chunk index: 148994 1454388
------------------------------------------------------------------------------
</pre>
{{< / highlight >}}
The backup time is more or less just the local network backup time + the extra time you need for the poor 25-50 MBit upload speed.
@ -145,7 +145,7 @@ And that's it ;=)
The initial BorgBackup run is slow (single core machine), but the compression actually make at least some visible difference on my server data, not just the de-duplication:
<pre>
{{< highlight bash >}}
Time (start): Fri, 2021-09-10 21:21:35
Time (end): Fri, 2021-09-10 22:02:00
Duration: 40 minutes 25.12 seconds
@ -159,11 +159,11 @@ All archives: 56.48 GB 45.17 GB 40.61 GB
Unique chunks Total chunks
Chunk index: 252076 278721
------------------------------------------------------------------------------
</pre>
{{< / highlight >}}
An increment is a much faster thing, just like for my normal backup:
<pre>
{{< highlight bash >}}
Time (start): Fri, 2021-09-10 22:16:36
Time (end): Fri, 2021-09-10 22:19:36
Duration: 2 minutes 59.12 seconds
@ -177,7 +177,7 @@ All archives: 112.99 GB 90.35 GB 40.66 GB
Unique chunks Total chunks
Chunk index: 252551 557639
------------------------------------------------------------------------------
</pre>
{{< / highlight >}}
Btw., the rsync received size was ~76 MB for the above run, BorgBackup did break this down to just 46 MB for the increment, not that bad.