Synology Monitoring Tool is a native Synology package to monitor the Synology ressources, volumes and disks, sending the monitored information every 5 minutes to a XyMon/Hobbit/Big Brother compatible monitoring server, and optionally storing a history of the monitored data in a local csv file.

To install or check automatically for updates for this package, add "Name: SysCo Synology Packages" and "Location: http://synology.sysco.ch" as a location in your Synology (Package Center - Settings - Package Sources - Add).

The dedicated page for this monitoring tool is http://www.sysco.ch/synomon/.

The last version (1.3.0) released the 24. February 2014 checks the size of all available volumes.