flex 10 stack and vcm failover when loosing first enclosure

Pol_4 — Mon, 06 Feb 2012 11:47:14 GMT

Hi,

I'm wondering about the failover in case of stacked config.

Let's define the environment : two c7000, each with 2 flex10 modules in bay 1 and 2, are stacked with 10Gbe Fiber.

According to docs, the VCM run on mod bay 1 in the first enclosure, and it's backup is running in b2 of same c7000.

What will arrive if that enclosure is failed (like in disaster situation, let's imagine the second c7000 is 100m away and not impatcted by the disaster). ? I will loosed active and backup vcm instances. Is there a way to restart a vcm on a module in the second c7000 ?

Thanks for help

Re: flex 10 stack and vcm failover when loosing first enclosure

DanRobinson — Sat, 02 Jun 2012 02:35:03 GMT

Assuming the slave enclosure has uplinks coming out of it, it will continue to pass ethernet traffic and should operate like normal.
While in this degraded mode you will not be able to login to the VCM GUI or CLI since the root enclosure is down.
In order to get back in, you need to bring the root enclosure back up.
If thats not possible you would need to plan a downtime and rebuild the VC domain.

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flex 10 stack and vcm failover when loosing first enclosure

Re: flex 10 stack and vcm failover when loosing first enclosure