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тАО01-03-2011 07:51 AM
тАО01-03-2011 07:51 AM
a few days ago we had a general blackout on our data center. We have about 15 HP c7000 enclosure. When the power came up, we found that almost all switches cisco 3020, 3120x e and FC passthru were not operational, with a blue light.
We manually removed and reconnected each interconnect device, and everything started to work again.
What is the meaning of this blue alert light? We had a similar blackout in the past but without this strange behavior.
Thank you very much for your suggestions,
best regards.
Solved! Go to Solution.
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тАО01-03-2011 08:17 AM
тАО01-03-2011 08:17 AM
Re: Side effects of a blackout on c7000 switches & passthru
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тАО01-04-2011 08:51 AM
тАО01-04-2011 08:51 AM
Re: Side effects of a blackout on c7000 switches & passthru
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тАО01-04-2011 11:12 AM
тАО01-04-2011 11:12 AM
SolutionThe behavior is indeed strange, but really not unexpected when you have a sudden power down. The modules would expect the backplane to have already been powered on when they themselves are powered on, so likely the problem was caused by a timing issue due to everything coming online at the same time.
I agree with the prev. post - check and update the OA/enclosure firmware.
-Bob
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тАО01-04-2011 11:29 PM
тАО01-04-2011 11:29 PM
Re: Side effects of a blackout on c7000 switches & passthru
- Enclosure Information
- Enclosure Settings
- Device Power Sequence
With 15 c7000 and lots of servers, switches and other goodies coming on at the same time, you get a massive surge in power usage.
Set the Interconnect bays to start first(give them a few seconds between each), then the Device bays. 5 - 10 seconds between each server seems like a good idea.
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тАО01-20-2011 04:31 AM
тАО01-20-2011 04:31 AM
Re: Side effects of a blackout on c7000 switches & passthru
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тАО01-20-2011 04:32 AM
тАО01-20-2011 04:32 AM