[c-nsp] rack power question

[Tim Durack]

For a 6509-V-E with 2xVS-S720-10G-3CXLs and 7xWS-X6708-10G-3CXL.Cisco
Power Calculator shows:

107.76 Amps  	4525.92 Watts  	18183.55 BTU/Hr

 At 21u you could squeeze two in a rack, for 9K (we aren't planning on
doing that though.)

On the server side something like an HP C Class Blade Chassis with 16
blades can hit 3K when the fans rev up.
At 10u you could squeeze 4 in a rack, but cooling is going to be an
issue. With enclosed ducted racks, we currently have plans to put 3 in
a rack for a total of 9K.

So yes we could require >6K.

Tim:>

On Sat, Mar 22, 2008 at 10:02 PM, Patrick Giagnocavo <patrick at zill.net> wrote:
>
>  Hopefully this classifies as on-topic...
>
>  I am discussing with some investors the possible setup of new datacenter
>  space.
>
>  Obviously we want to be able to fill a rack, and in order to do so, we
>  need to provide enough power to each rack.
>
>  Right now we are in spreadsheet mode evaluating different scenarios.
>
>  Are there cases where more than 6000W per rack would be needed?
>
>  (We are not worried about cooling due to the special circumstances of
>  the space.)
>
>  Would someone pay extra for > 7KW in a rack?  What would be the maximum
>  you could ever see yourself needing in order to power all 42U ?
>
>  Cordially
>
>  Patrick Giagnocavo
>  patrick at zill.net
>