I attached my configuration as screenshots attached. Basically I'm trying to copy around 2TB of Data from Ext. Drive A (ExFat) to Ext. Drive B (Ext4) internally with Rsync.
But whenever I start the job, the Error Message appears. Anyhow, apparently data is still being copied in the background as HDDs are spinning and free space decreases on HDD B.
PS.: Is the board language English or German? I see both languages are used.