Irideos Power Failure - DC2 Milan (Italy)

At around 21.40 Irideos had a power failure in Milan DC2 that cause outages in our network. Most of our services were impacted. Electricians powered on data center again at about 22.30 and we were authorized to enter our rooms one hour later.Issues we discovered ?    One of border ne8000 router failed to boot    4 tor switch not boot ...