I'm alerting volumes with 2 different alerts, one dedicated to system drives another for data drives with general conditions: %space used>90, space left<10GB.
In most cases conditions are ok except few servers. On those servers data drives usage is balancing around 95% (space left around 4 GB) and that is acceptable. It would be necessary to add condition about dynamics of disk usage changes (example: if AvgDiskUsed and MaxDiskUsed week ago differ for less than 1% than current AvgDiskUsed and MaxDiskUsed then alert does not trigger.
I know that probably my alert should integrate with Custom SQL Alert to solve the problem but it needs more SQL knowledge than mine. Can anybody help with it?
Orion Core 2010.2.1 SP1, APM 4.0.1, NPM 10.1.1 SP1, NTA 3.7