Hi, anyone know why "df" command output report more used space than the sum of all files on the filesystem:

 

root@PCNAS:/mnt/cache# df -h /mnt/cache
Filesystem      Size  Used Avail Use% Mounted on
/dev/sdh1       232G  199G   24G  90% /mnt/cache
root@PCNAS:/mnt/cache# du -sh * | sort -rn
120G    domains
28G     appdata
6.6G    system
root@PCNAS:/mnt/cache#

 

Thanks.

pcnas-diagnostics-20210710-0130.zip

Filesystem overhead most likely

 

 

Also du isn't reliable with btrfs, df will report correct used/free space for that pool, GUI will report correct free space, since devices are not of the same size.

Thanks to all for the clarification.

I solved my issue with the free space following this guide