Re: OT:6500 Combined power question

I concur. I think an outage is the right way to go here.

On Mon, Jun 20, 2011 at 10:39 AM, Mark Cairns <m.a.cairns_at_gmail.com> wrote:

> Dennis,
>
> It sounds like you may be better off just working in a change window and
> powering down the switch. I can't say that I've seen this type of change
> attempted on a live system.
>
> Mark
>
> On Mon, Jun 20, 2011 at 1:33 PM, Dennis Worth <dennis.worth_at_gmail.com>wrote:
>
>> 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
>> >>> >
>> >>> >
>> _______________________________________________________________________
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>> >>> >
>> >>> >
>> >>> >
>> >>> >
>> >>> >
>> >>> >
>> >>>
>> >>
>> >>
>> >>
>> >> --
>> >> 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
>>
>> _______________________________________________________________________
>> 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
Blogs and organic groups at http://www.ccie.net