Hi everybody !
I work on a HP ProLiant DL360 G7 which host an ESXi 5.5.0 build-4345813- Update 3, which is managed by a vCenter Server 6.0.
I was doing my acceptance tests and i got an alert issue :
I'd like to have an alert on my vCenter and also by email as i did for storage link for example, so I use the default vCenter alarm (Host hardware power status).
I was trying to threw a power alert/alarm by unplugging one of the two power cords.
Well, i wait 10-20min at least and there's no alert from vCenter and no mail instead of i got a warning on the ilo web interface.
Then i've tried to update and reset sensors ("in my screen : Mise à jour and Réinitialiser capteurs) and only this throw alarm and mail :
Then, i plugged my cord in the PSU and the state never came back to Normal unless i make an update and reset sensors...
I saw my issue seems known by the HP/VMware communities as i can see on google, but i still not have found a solution.
Do you have any idea about my issue ?
Thanks for reading/answering ! 
Gael