I'm redirecting this question to the Google Group, as it's the best place to share this kind of information.
In Minarca's GUI, the total space displayed corresponds to the available disk space of the selected destination. If you've chosen your OneDrive folder as the backup destination, the total space shown will reflect the disk space of your C: drive. This is because Minarca initially creates the backup on your C: drive, and OneDrive then syncs it to the cloud. Minarca has no way of detecting whether the selected destination is a OneDrive folder or any other cloud sync technology.
I hope this makes sense to you.
hi dev,i know if this question is relevant or not but i have mounted my one drive as a drive on explorerits a dev account of 5tb but when i do backup it shows me 1tb
don't know if it's worth to check but i thought to askthankyou