HUGE Maria db Backus of 3GB but command line shows only 256 MB?

Hi all
in recent days my mariaDB backups seem to have an insane growth with size of 3 GB…

image

anyone know what’s going on? is there a way to exclude the maria db from the backups?

thx

Z

Same question here.
HA is running on my ssd with Maria.dB.
My full backup is round about 3GB.

Is it better to put the Maria.on a Running synology NAS?