With IPHost Network Monitor you can run WMI Percent Free Space monitoring of various devices in your network.
To create a WMI monitor for Percent Free Space, provide host name (it must be a Windows host) and specify custom WQL query:
% Free Space is the percentage of total usable space on the selected logical disk drive that was free.
The Logical Disk performance object consists of counters that monitor logical partitions of a hard or fixed disk drives. Performance Monitor identifies logical disks by their a drive letter, such as C.
IPHost Network Monitor is an advanced and easy tool for monitoring LAN and WAN networks, network servers, workstations and TCP/IP devices. Use IPHost Network Monitor to monitor your servers, domains, computers and devices.