Hi there @cryptomarketanalytics,

The operating system itself should not use more than a couple of GB of disk space.

You would need to check your directories in order to find out what exactly is consuming the rest of the disk space. It might be a log file that has grown a lot or a directory holding a lot of small files.

For example, you could use the find command to find any files larger than 500MB or so:

find / -type f -size +500M -exec ls -lh {} \; 2>/dev/null

To check for large directories rather than files, you could use the du command with the following arguments:

du -h --max-depth=1 /

This will give you a list with the larges folders, then depending on the largest one you can run the du command again, let’s say the largest folder is the /var/ folder, then the command would look like this:

du -h --max-depth=1 /var

Then for example, let’s say that then the /var/log is the largest one, your next command would look like this:

du -h --max-depth=1 /var/log

Repeat this until you get to the actual largest folder.

Let me know how it goes!
Regards,
Bobby