System Volume root's usage is 95%

[TarheelWords]

RN102, Software 6.10.2 No anti-virus installed at this time.

I am seeing what appears to be a familar message.  I have read all the issues I could find regarding other folks having this issue.  I looked at the AV and deleted the few tmp files I saw there.  That deletion got me down to 95% from 97% as there weren't really many files there of any size.  Looking at my System I see the following:

Filesystem       Size    Used   Avail   Use% Mounted on

/dev/md0         3.7G 1000M   2.5G     29%   /

/dev/md127     2.8T     1.2T    1.6T     43%   /data
/dev/md127     2.8T     1.2T    1.6T     43%   /home
/dev/md127     2.8T     1.2T    1.6T     43%   /apps

I have attached a picture with all the rest of the information that this command produced.  Why am I getting the error regarding the System, when to me it looks like there is plenty of space?

thanks

[StephenB]

It does look like there is plenty of space at the moment. 

• Is it possible that something was filling the OS when the error was generated?
• What apps are installed on the NAS?

One thing you could try is remounting the OS partition as /mnt.  That will let you look "under" the mount points in //

You do that with 

# mount --bind / /mnt

then search throuh /mnt.  When done, you unmount with 

# umount /mnt