How to see what's taking so much space : rsynology

With Storage Analyzer, not only can you monitor overall volume usage trends, but also have a glance at detailed storage analysis generated from scheduled tasks.

1. Check the volume usage (applicable only to DSM 7.0 and above). Check the Usage Details of your volume to find out if any of the following ...

Go to Storage Manager > Storage > Volume. Click the upper-right icon and select Settings. Under Usage Details, select or deselect Enable usage detail analysis.

Go to DSM > Storage Manager > Storage, click the ellipsis at the right side of the volume where Synology Drive Server is located, and select Usage Details. In ...

Go to Storage Manager / Select Volume 1 / Click on the 3 dots then Settings. Follow the instructions in the image below.

Synology has an App on it's DSM store called Storage Analyzer, which provides a very friendly user interface to view usage by folder, user, file types, ...

I'm running DMS 7.0 I have about 630gb used...but it shows 1.2tb of 1.8 used. How do I check where the other about 400gb are being used?

The disks are working 24/7 and Ressource Monitor shows a constant ~2.8MB write, but absolutely nothing in Logs, Connections, or data in Task Manager.

Running out of space? Check out the Usage Details to see which service is taking up the most space. Then, take action to free up some space.

I can't understand why this isn't made more obvious when checking storage information or getting low storage space alerts. 16:19.