Re: OT:6500 Combined power question

Removal of power supply with redundancy disabled

   -

   System log and syslog messages are generated.
   -

   The system power is decreased to the power capability of one supply.
   -

   If there is not enough power for all previously powered-up modules, some
   modules are powered down and marked as power-deny in the Status field of
   the *show module* command output.

In systems that are equipped with two power supplies, if one power supply
fails and the other power supply cannot fully power all of the installed
modules, system power management shuts down devices in this order:

   1.

   Power over Ethernet (PoE) devices

   The system powers down PoE devices in descending order, starting with the
   highest numbered port on the module in the highest numbered slot.
   2.

   Modules

   If additional power conservation is needed, the system powers down
   modules in descending order, starting with the highest numbered slot. Slots
   that contain Supervisor Engines or switch fabric modules are bypassed and
   not powered down.

This shut down order is fixed and cannot be changed.

On Mon, Jun 20, 2011 at 10:27 AM, Dennis Worth <dennis.worth_at_gmail.com>wrote:

> Just found this.
>
>
> http://www.cisco.com/en/US/products/hw/switches/ps700/products_tech_note09186a008015bfa8.shtml
>
>
>
> On Mon, Jun 20, 2011 at 10:12 AM, Dennis Worth <dennis.worth_at_gmail.com>wrote:
>
>> Hopefully someone has a test environment with enough cards to try it and
>> let us know.
>>
>>
>> On Mon, Jun 20, 2011 at 10:10 AM, John Neiberger <jneiberger_at_gmail.com>wrote:
>>
>>> A co-worker and I were discussing this very thing this morning.
>>> Neither of us are sure what happens, though. I think the switch will
>>> reload and bring up line cards in order until it runs out of power. My
>>> co-worker thinks that it would probably just start shutting down line
>>> cards until it had enough power, but it wouldn't reboot. I really have
>>> no idea which actually happens, though. Hopefully someone here will
>>> know. I've booted up switches that didn't have enough power, but I
>>> don't recall pulling a power supply in a live, underpowered chassis
>>> before.
>>>
>>> John
>>>
>>> On Mon, Jun 20, 2011 at 11:04 AM, Dennis Worth <dennis.worth_at_gmail.com>
>>> wrote:
>>> > Group,
>>> >
>>> > Currently an environment is running 110 power combine 3000W PS'. only
>>> 111
>>> > watts available, and need to add another linecard. Need to change out
>>> to 220
>>> > to support full 3000 watts.
>>> >
>>> > The question is: If i pull power to 1 power supply and plug into new
>>> > receptacle, what gets shutdown? The whole switch, blades other than sup
>>> or
>>> > what? I could not find a document to point me in direction, and i don't
>>> have
>>> > a test environment with this setup ;)
>>> >
>>> > Thanks,
>>> >
>>> > --
>>> > Dennis Worth
>>> >
>>> > "Of all men's miseries the bitterest it this: to know so much and to
>>> have
>>> > control over nothing."
>>> > --Herodotus
>>> >
>>> >
>>> > Blogs and organic groups at http://www.ccie.net
>>> >
>>> > _______________________________________________________________________
>>> > Subscription information may be found at:
>>> > http://www.groupstudy.com/list/CCIELab.html
>>> >
>>> >
>>> >
>>> >
>>> >
>>> >
>>> >
>>> >
>>>
>>
>>
>>
>> --
>> Dennis Worth
>>
>> "Of all men's miseries the bitterest it this: to know so much and to have
>> control over nothing."
>> --Herodotus
>>
>>
>
>
> --
> Dennis Worth
>
> "Of all men's miseries the bitterest it this: to know so much and to have
> control over nothing."
> --Herodotus
>
>

-- 
Dennis Worth
"Of all men's miseries the bitterest it this: to know so much and to have
control over nothing."
--Herodotus
Blogs and organic groups at http://www.ccie.net