Apologies, I read the question too quickly and assumed FAST VP because you mention FAST VP.  Now I see it is related to alert policies.  These can be changed in Unisphere.  From the main dashboard , click on Administration in the lower righ-hand corner. Then select Alert Settings, followed by Alert Policies.  Hope that helps.
Hi , I have a question regarding the policy creation of Unisphere for V-max frame Is there any way of changing the policy over the Unisphere .
How to change the alert policy in Unisphere for Vmax.