[olug] Emergency Server Room Air Conditioning Ideas

[Shannon]

has the room always had a cooling issue or is this recent?


if there is a door near outside access get a rooftop AC unit on a trailer
parked by it and run flex duct into the room.
or just a blower motor connected to flex duck work pushing it in from some
other spaces

is this a dedicated AC unit?  did they check the cfm coming into the room
maybe ductwork came loose or a fire damper has been tripped restricting
airflow.

On Fri, Jul 19, 2019 at 11:16 AM Hurley, Rod <RHurley at tenaska.com> wrote:

> Find out your BTU factor from your devices (each one is rated) and compare
> that to the cooling factor (tonnage) of your HVAC.  A good plan is to have
> redundant CRAC units, using lead/lag, where one comes on only when needed.
> Of course to do this they have to communicate with each other.  Most modern
> CRAC systems have this option.   Then plan your units to cover the BTU
> factor (figure in for growth if necessary) plus 60%.  In other words, each
> unit is loaded to 40%.  This way if one fails, the other can hold the load
> with room to spare.
>
> Rod
>
> -----Original Message-----
> From: OLUG <olug-bounces at olug.org> On Behalf Of Rob Townley
> Sent: Friday, July 19, 2019 10:30 AM
> To: Ben Hollingsworth <obiwan at jedi.com>
> Cc: Omaha Linux User Group <olug at olug.org>
> Subject: Re: [olug] Emergency Server Room Air Conditioning Ideas
>
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>
> HVAC techs examined the dedicated serverRoom AC unit.  It is maxed out.
> AC blows out at 55 degrees F but it rises to 90 degrees F by the time it
> travels the 8 feet across the room.  Some systems would be OK, but
> enterprise grade SAS harddrives usually operate within tighter
> environmental conditions, 40 is too cold, 95 is too hot.
>
> On Fri, Jul 19, 2019 at 4:56 AM Ben Hollingsworth <obiwan at jedi.com> wrote:
>
> > In that situation, most buildings will have a dedicated AC unit for
> > the server room. If you need to use a fan, be sure to get one designed
> > for a 100% duty cycle, and make sure the room's inlet is low, exhaust
> > is high, and they're as far apart as possible.
> >
> > You may want to check the server's temp sensors to determine what is
> > an acceptable room temp. Just because it's uncomfortable for tou
> > doesn't mean the servers aren't OK.
> >
> >
> >
> > On July 19, 2019 4:05:01 AM EDT, Rob Townley <rob.townley at gmail.com>
> > wrote:
> >>
> >> What are some ways to keep servers running when the Air Conditioner
> >> is not cooling well enough?
> >>
> >> Blow air into server room from another part of bldg Portable Air
> >> Conditioner Fans
> >>
> >> What else?
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> > --
> > Ben Hollingsworth
> > obiwan at jedi.com,
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