scurrier
Patron
- Joined
- Jan 2, 2014
- Messages
- 297
So, I am shopping for a UPS and discovering that finding the right one for me is not as straight-forward as it would initially appear. Compatibility seems to be a question mark (based on forum posts) even if the UPS appears in the FreeNAS UPS dialog dropdown. Not only that, but so many threads on the internet have someone chiming in about how X brand UPS did something scary to them. Over-charged, bulging batteries, batteries that don't charge, UPS failing even when power didn't, etc.
So I got a crazy idea. My Supermicro 933T chassis has triple redundant power supplies. Why not hook up two, different, inexpensive UPSs? There is a web site that offers refurb UPSs with new batteries and a short warranty.
Potential benefits:
Thoughts? Good/bad?
So I got a crazy idea. My Supermicro 933T chassis has triple redundant power supplies. Why not hook up two, different, inexpensive UPSs? There is a web site that offers refurb UPSs with new batteries and a short warranty.
Potential benefits:
- A single section of the triple-redundant power supply can handle my server's load (as measured by a Kill-a-watt)
- If one UPS fails while mains power is still good, I would be protected from that. (Could also achieve this without two UPSs by plugging one PSU into the wall directly)
- If one UPS fails during a mains outage, I would be protected from that.
- If one of the UPS has communication compatibility issues with FreeNAS, I could try using the other one instead.
- Two opportunities to burn my house down instead of one.
- I'd be subject to the lesser of the two UPSs' surge protection. (In my opinion, surge protection is kind of a gamble anyway, so I don't think this would keep me up at night.) (This could potentially be overcome with a good surge protector which powers both UPSs)
Thoughts? Good/bad?