alerts about EM Overall Capacity

Document ID : KB000110539
Last Modified Date : 10/08/2018
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We are getting alerts about EM Overall Capacity (%)
The "EM Overall Capacity (%) - Caution" is set at 75& and  "EM Overall Capacity (%) -  Danger" is set at 90%.
How can we avoid unnecessary alerts?
The Alert came with "Supportability.jar" Manage Module which could have threshold based on the old GC settings (CMS parallel GC and GC kickoff at 50%). We are now changing the default GC algorithm to G1GC for newer JVM versions and also bigger heap size. For the Alert definition, it is hard to configure a proper threshold for every environment -- each one might have different configurations. Based on this information, it would be better to make additional adjustments to threshold, so that we do not get unnecessary alerts.