[c-nsp] C7600 power allocation

[Harald Firing Karlsen]

Alexandre Snarskii wrote:
> On Mon, Mar 30, 2009 at 11:51:43AM +0300, Dmitry Kiselev wrote:
>   
>> Hello!
>>
>>   Could anybody explain me how exactly IOS choise which module to
>> disable if system run in combined power mode and one of power inputs
>> failed?
>>
>>
>> http://www.cisco.com/en/US/docs/routers/7600/ios/12.2SR/configuration/guide/pwr_envr.html#wp1020384
>>
>> However, if one power supply fails and there is not enough power
>> for all of the previously powered-up modules, the system powers
>> down those modules. 
>>
>>
>>
>>   Could I do some pre-configuration to point IOS to modules "less
>> critical" for me?
>>     
>
> As per this letter, 
>
> http://puck.nether.net/pipermail/cisco-nsp/2006-March/028767.html
>
> you can achieve this placing less critical modules in highest 
> numbered slots and more critical - to lowest.  
>   
Note however that the two SUP-slots got dedicated/reserved power, so 
they will never shut down. That means if you only got one SUP you should 
have a linecard in the other SUP-slot as well (as the power for this 
slot is reserved anyway).

-- 
Harald Firing Karlsen