Re: Suggested racks

[DrFranken <midrange@xxxxxxxxxxxx>]

At your data center yes. Not in ours.

In ours the hot aisle is completely enclosed with storm doors on both 
ends and plates from the top of the racks to the ceiling. There are 
almost no ceiling tiles in that section as that entire space is the 
return back to the CRAC units. It's generally 80 degrees in there. Our 
DC strictly enforces gear pulling air in the front and ehausting it out 
the rear.

All cables are above the racks on the cold side. Cold air flows down the 
aisles and drops out of the ceiling. As cold air falls that's a win. And 
of course hot air rises also a win.

Hot aisle cold aisle is much simpler to maintain when customers are 
renting racks rather than cages.

We see a mix of this depending on who built the DC.  Raised floors are 
very expensive while duct-work is much less so.


        - Larry "DrFranken" Bolhuis

www.Frankeni.com
www.iDevCloud.com - Personal Development IBM i timeshare service.
www.iInTheCloud.com - Commercial IBM i Cloud Hosting.

On 1/10/2020 11:11 AM, Rob Berendt wrote:
> Hot aisle / cold aisle still has the cooling coming from the floor.  At least at the GR DC.
>
> Rob Berendt