Alerting on Virual Memory

Here what I use:

Alert: ${FullName} is ${SQL:Select Round ('${VolumePercentUsed}',0) from Volumes WHERE VolumeID='${VolumeID}'} Percent Utilized

Volume Size        ${SQL:Select round((VolumeSize / 1024 / 1024 / 1024),1) from Volumes WHERE VolumeID='${VolumeID}'} GB
Currently Used     ${SQL:Select round((VolumeSpaceUsed / 1024 / 1024 / 1024),1) from Volumes WHERE VolumeID='${VolumeID}'} GB

The IP address of this Node is ${Node.IP_Address}

To view details of this volume, goto:

http://Your_Server/NetPerfMon/View.asp?View=VolumeDetails&NetObject=V:${VolumeID}

This alert was triggered on ${DateTime}

This has been sent by an automated system, DO NOT REPLY.
Generated By: ${AlertName}

JB

PS - This works for disk space percentages too.