A quick search would have yielded the following:   SHR is not available on 3615xs and all high end models of Synology. You can however activate it:   SSH with admin input your password elevate rights by doing: sudo -i input your password again you are now root edit the synoinfo.conf file with vi or nano if you have it installed. I prefer nano it's easier to use. You can install it through the community package center vi /etc.defaults/synoinfo.conf or nano /etc.defaults/syno