[58677] in North American Network Operators' Group
Re: "They all suck!" Re: UPS failure modes (was: fire at NAC)
daemon@ATHENA.MIT.EDU (Dan Hollis)
Thu May 29 19:20:13 2003
Date: Thu, 29 May 2003 16:19:52 -0700 (PDT)
From: Dan Hollis <goemon@anime.net>
To: Sean Donelan <sean@donelan.com>
Cc: nanog@merit.edu
In-Reply-To: <Pine.GSO.4.44.0305291616030.11168-100000@clifden.donelan.com>
Errors-To: owner-nanog-outgoing@merit.edu
On Thu, 29 May 2003, Sean Donelan wrote:
> UPSes (and UPS batteries) do fail, sometimes in catastrophic ways. I
> would not design any critical system on the assumption that any particular
> component won't fail. High availability is about designing for failure.
> Sometimes there is a long time between failures, other times they occur
> early and often. The most annoying thing about UPSes is they fail at
> exactly the time they are needed most.
ok, what UPSes do telcos use (besides their monster battery arrays)
-Dan
--
[-] Omae no subete no kichi wa ore no mono da. [-]
