Backup file is very big

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1

NextCloudPi version v1.10.6
NextCloudPi image NextCloudPi_03-09-19
Nextcloud version 15.0.5.3

there are 4 Users:

User1 = 74B
User2 = 0B
User3 = 7,2GB
ncp = 12,3MB

=> < 8GB

When i create a Backup of the NC instance (include data = activ) i got a *.tar file wich is 16,5GB.
Why is the file so big?
A Backup without Date is still 1,6GB

2

It might be possible that the image previews are the biggest part of your data. You should check the folder size using the following command: du -d 2 -h <absolute-path-to-your-data-dir>.

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3

this:

sudo du -d 2 -h /var/www/nextcloud/data/

shows me that:

…
4.0K /var/www/nextcloud/data//cache
1.3G /var/www/nextcloud/data//files_versions
6.9G /var/www/nextcloud/data//files_trashbin
7.3G /var/www/nextcloud/data//files
3.5M /var/www/nextcloud/data//uploads
16G /var/www/nextcloud/data/
…

*** = User3

thats interessting, is it meaningful to delete these “files_versions” and “files_trashbin”?

4

Yes, you seem to have the Versions app enabled. You should be able to exclude the directories from your archive, like:

tar cvjf <archive-name>.tgz --exclude <exclude-path-1> --exclude <exclude-path-2> <path-to-be-archived>
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5

Ah, great! i didn’t know about the app. As i see i also have “Deleted files” enabled, which is responsible for the trashbin directory.
Now it makes sense. Thank you very much!
So, if i don’t want to use these Apps, i can simply deactivate them.

But is it also possible to delete the origin directories?
e.g.: /var/www/nextcloud/data/***/files_trashbin

6

I think you can exclude it from your backup, but if you want to cleanup the directories you should use the occ command line tool with on of the following options:

 trashbin
  trashbin:cleanup      Remove deleted files
  trashbin:expire       Expires the users trashbin
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