Windows Drive Space Alerts

On the SNMP (Linux) front, I ended up taking a slightly different approach.  I still created the lower limit data point as I did for Windows, but instead of parsing the SNMP, I created two DataSources (regular file system monitoring and mega urgent file system monitoring).  The two DSes have different filters for volumes.  The added benefit of this approach is that the mega urgent volumes can be group under a separate instance grouping, like,  "File Systems Critical to Service".  My operators then can know straight away that these are urgent to the health of the business service.