I have a server that is triggering the "Disk over 95% space usage" and it is correctly sending out an email as it is configured to do. The email message said Cached Memory is 100% full. Now when I clear the cached memory, I would expect Orion to report that the cached memory would be at or, at least, near 0% full. On the Node Details page for this particular server under the Disk Volumes heading, Orion still reports the cached memory at 100% full. I have clicked the Poll Now function and still no change. I have gone into the Advanced Alerts on the Orion server and checked the Acknowledged check box and still no change. What am I missing? We are running SolarWinds Orion Core 2011.1.0 SP1, NPM 10.1.2 SP1, APM 4.0.2 SP3