If you have been sold "redundant" power and the DC provider has connected both sides to one UPS in any form they are seriously amiss. You should not be expected to know the internal workings of the DC UPS systems and any talk of battery packs (unless you are getting 48v DC) is utterly irrelevant. This DC provider is, in my opinion is very much out of step with reality if they think this is some sort of normal practice.
-----Original Message----- From: NANOG <nanog-bounces+tony=wicks.co...@nanog.org> On Behalf Of Babak Pasdar Sent: Tuesday, October 24, 2023 8:31 AM To: James Jun <james....@towardex.com> Cc: nanog@nanog.org Subject: Re: 165 Halsey recurring power issues Thanks James, At signup we asked for N+1 power, two circuits to different UPS units. I think they sliced it thin by connecting us to two battery packs on the same UPS. When the UPS controller crashed both battery packs went down. Which now raises the question -- is it reasonable to have to specify and expect that two UPS units means that they do not share any common points of failure. Is the UPS the battery or the battery and controller combined? Babak
