How to block a specific hardware alert

How to block a specific hardware alert

Hi there.  I'm setting up Ops Manager to monitor my servers & switches.  I am getting alerts from most of my Aruba switches because they don't have an optional second PSU installed.  It shows as a fan fail fault which I would like to block.  The only options I can find searching the internet is to suspend or stop all hardware alerts.  Surely there's a simple way to block this one specific alert from fouling up my heatmap and filling the logs?
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