[196231] in North American Network Operators' Group
Re: Temp at Level 3 data centers
daemon@ATHENA.MIT.EDU (Jeremy Austin)
Fri Oct 13 13:23:02 2017
X-Original-To: nanog@nanog.org
In-Reply-To: <9578293AE169674F9A048B2BC9A081B40262155CB8@MUNPRDMBXA1.medline.com>
From: Jeremy Austin <jhaustin@gmail.com>
Date: Wed, 11 Oct 2017 10:25:49 -0700
To: "Naslund, Steve" <SNaslund@medline.com>
Cc: "nanog@nanog.org" <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
My 0.0000041 BTC:
1) For small facilities, without separate temperature-controlled UPS zones,
the optimum temperature for lead-acid batteries may be the lower bound.
77=C2=B0F is optimal, with significant reduction in battery life even 15=C2=
=B0F above
that. Given that batteries' internal temperature will be higher than
ambient, 80=C2=B0 set point is not stupid. I run cooler, FWIW.
2) Headroom. I try to have documented for each facility the climb in
degrees per hour (determined empirically) as a backup so I know required
response times when AC failure occurs.
On Wed, Oct 11, 2017 at 10:09 AM, Naslund, Steve <SNaslund@medline.com>
wrote:
>
> Bottom line 80 F input air is too hot in my opinion and apparently the
> equipment's opinion as well.
>
> --
Jeremy Austin
jhaustin@gmail.co <jhaustin@gmail.com>m
(907) 895-2311 office
(907) 803-5422 cell
Heritage NetWorks <https://heritagenet.works/> - Whitestone Power &
Communications - Vertical Broadband, LLC <http://verticalbroadband.com/>
