[c-nsp] 6509 power supply question

[David Prall]

http://www.cisco.com/en/US/products/hw/switches/ps700/products_tech_note0918
6a008015bfa8.shtml

There is no such thing as an 1800W Power Supply. The 1300W is what is
delivered to power line cards. The 1800W is the total supply requirement.
The above url discusses both this as well as what happens when running
different power supplys. I was thinking that this had changed, but I can't
find what I was thinking (which was that they would run in redundant at the
lower power supply ability if capable) but it doesn't appear that way.

--
http://dcp.dcptech.com
  

> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net 
> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of 
> Justin M. Streiner
> Sent: Friday, May 23, 2008 10:36 AM
> To: cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] 6509 power supply question
> 
> On Fri, 23 May 2008, Jarrod Friedland wrote:
> 
> > Can I run a 6509 with 1 x 1300W and 1 x 1800W (redundant)? 
> Are the issues
> > with doing this we should be aware of? I have asked this 
> question of cisco
> > integrators however all we get is "The engineers have put 
> their heads
> > together and say NO"
> 
> I don't think having power supplies with two different 
> wattage ratings 
> would hurt any of the guts, but I've never had to do this, so 
> I can't say 
> with any certainty how the switch will behave.
> 
> It might:
> 1. function normally
> 2. function, but the redundancy won't work
> 3. function, but the switch will complain
> 4. shut down
> 5. do something unpredictable like shut down all of the linecards...
> 
> jms
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