blackout

Blackout temporarily pauses the monitoring of the target, so that event triggers such as "database down" don't fire.  To a site that measures down time, then scheduled maintenance windows are blacked out -- rather than being reported as a violation of the service level agreement (SLA).

An older example, but clear:
http://docs.oracle.com/html/A95412_01/chap3.htm

Thank you dba use black out to prevent data collection during scheduled maitainance

Jcob, I'm glad to see unknown_solution was able to quickly address your question.  It's the asker's discretion to recognize what solution works.  Since my prior answer was nearly identical, imo, I simply want to call your attention that points can be, and should be, split when appropriate.

I look forward to assisting you with your further issues.