Re: About Markely Group, Summer Street, Boston

["Dave Peters" <user=190@nabble.blu.org>]

 My friend has cisco catalyst 3560. 




--- On Tue, 7/8/08, Ward Vandewege <[hidden email]> wrote: 

> From: Ward Vandewege <[hidden email]> 
> Subject: Re: About Markely Group, Summer Street, Boston 
> To: "Dave Peters" <[hidden email]> 
> Cc: [hidden email] 
> Date: Tuesday, July 8, 2008, 4:00 AM 
> On Mon, Jul 07, 2008 at 06:23:40PM -0700, Dave Peters wrote: 
> > My friend has colo with Markely Group, Summer Street, 
> Boston. He received 
> 
> I've got machines there too. 
> 
> > two  messages from Markely Group few days ago.  One 
> message stated that 
> > heats were coming out from the cabint. 
> 
> Cannot parse? Heat coming out of the cabinet? That seems 
> pretty normal. 
> 
> > Another message stated that the 
> > switches are racked in the wrong direction 
> (backwards). My friend told me 
> > that the servers are racked facing the front and the 
> switches are racked 
> > facing the back. 
> 
> Right, pretty standard to keep cabling as short and tidy as 
> possible. 
> 
> > This is first time that I hear about that and I really 
> wonder how the A/C 
> > systems that Markely Group is using. 
> 
> They probably have the typical setup with blue and red 
> zones between racks - 
> one side of the rack is 'blue' (i.e. cool) and the 
> other side of the rack is 
> 'red' (i.e. hot). That's probably why they want 
> everything blowing out hot 
> air to one side of the rack - and that means that his 
> switches are indeed 
> mounted the 'wrong' way. 
> 
> The idea is that racks suck in cool air from one side and 
> blow out hot air on 
> the other side, where it is sucked into the AC system. 
> 
> Now, that being said - I don't know what switches your 
> friend has, but it's 
> hard to imagine they would generate much heat compared to 
> your average modern 
> pizzabox server. So the situation might be a little more 
> complicated than 
> that - or your friend has really, really big switches. 
> 
> Thanks, 
> Ward. 
> 
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