This maintenance has been rescheduled for Thursday January 30th, due to some required equipment not making it to us in time.
On Thursday we will be performing some electrics related maintenance for the rack which tripped fuses when we did our generator upgrade and power outage tests the other day. The maintenance consists of putting less sensitive fuses on both of our circuits and potentially replacing a power transfer switch. We hope that the work will happen without incident, but there is a chance that power may go away from that rack again - we cannot guarantee this will not happen. This will impact most of our Ryzen workloads, our Epyc workloads and our core services such as our dashboard. If a power incident occurs, we will be operational again within about 5-10 minutes and our entire team will be standing by to make sure everything comes up as quickly as possible after a potential failure.
We absolutely need to solve this issue as the situation is now, then if we have an unplanned power outage there is a chance this rack will go down, and we don't want that. In fact, everything we've designed in our DC is designed to prevent exactly this. We hope to get this issue resolved fully on thursday and hopefully without incident.