While researching a replacement for a failing UPS that runs half of our main server room, I happened to stumble across a "Maintenance Bypass PDU" which claims to allow you to switch everything over to mains power while you perform maintenance on your UPS.
I had no idea this was a thing, but with a constant need to replace failing batteries or entire UPS's, this could save me having to schedule downtime with several 24-hour departments.
So, I can't help but wonder:
- Do you use these bypasses?
- Do they work well?
- Is there a better option out there?