Available Disk Space on a Windows Box Perfmon:Free Disk Space SplunkNinja Vote Up +2 Vote Down -0You already voted! This splunk query will return available disk space in Gigabytes. sourcetype="Perfmon:Free Disk Space" | bucket _time span=1d | eval gigabytes=(Value/1024) | stats avg(gigabytes) by _time Share This: Tagged: free disk spacePerfmon:Free Disk Space