I have two servers in an IDF closet. Every Monday at 9:42AM for the past three weeks, they lose power unexpectedly.
However, these servers are on a beefy UPS, along with some other pieces of equipment. No other equipment loses power. The power cables are plugged in all the way at both ends.
The building/room does not loser power, and no breakers are tripped.
Security camera footage from around the time of the outage shows nobody entering or exiting the closet, so it doesn't appear to be someone tripping over cables or causing other mischief.
My first impulse was to suspect a bad power supply, but considering this happens to both servers and at the same day & time every week leads me to think this is not the case.
The event logs are unhelpful as all they say is that the servers lost power unexpectedly.
There don't appear to be any scheduled...