unable to copy files: "not enough space"

The Windows C drive has about 10 Gb of free space. I am not sure how to "copy files from frontview through the web interface", and I don't have any backup jobs setup. But like I said, Transmission is able to download new files to the share without any issues. If I can find out how to copy files through the frontview web interface I will try that.

I had a similar problem with one of the user shares- unable to copy in spite of plenty available space (as determined by the quota). In this case I was unable to copy even tiny files of a 1 - 2 Kb. I submitted a support request and after much back and forth (re-installing RAIDiatior, resetting user quota etc.), it was escalated up to L3 support, and finally fixed remotely (through Teamviewer, like someone else reported in the forum).

I am hoping I can get this problem fixed this time without going through the lengthy support process (which also involves giving full access to the readynas!).