[EHPweb] EHP Server failover

[Jeremy M Fee]

I am removing ehp2 and ehp3 from the Level3 DNS rotation right now.  The change should take effect within 5 minutes.


Thanks,

Jeremy


On Jul 23, 2010, at 11:43 AM, Christopher J Bidwell wrote:

> In preparation for the Menlo Park power outages this weekend, we will be failing ehpmaster over to ehpbackup.   
> 
> This is the sequence of events that will be occurring this throughout the weekend. 
> 
> Friday, before bldg 11 power is cut
>                 remove ehp2 and ehp3 from Level3 DNS rotation - Jeremy or Chris
>                 failover to ehpbackup as primary - Chris
>                 turn off ehpmaster, ehp2, ehp3, and eids2 - Stan
>                 switch ensX to generator power - Stan
> 
> Saturday, after bldg 11 power is restored
>                 don't turn on ehpmaster, it requires manual recovery just like we did  
>                         during the failover exercise.
>                 turn on ehp2 and eids2 - Stan
>                 switch ensX to regular power - Stan
> 
> Sunday, after bldg 3 power restored
>                 turn on ehp3 - Stan
> 
> Monday,
>                 ensure ehp2 and ehp3 are up to date - Jeremy
>                 readd ehp2 and ehp3 to Level3 DNS rotation - Jeremy or Chris
>                 begin recovery process for ehpmaster (start and immediately disable  
> crond) - Jeremy, Chris, and Stan
>                 ensure ehpmaster is in sync - Jeremy, Chris
>                 failback to ehpmaster as primary - Chris 
> 
> If you have any questions, please feel free to respond to this email. 
> ----------------
> Thank you,
> 
> Chris Bidwell, RHCT
> Red Hat Linux Administrator
> Geologic Hazards Team
> US Geological Survey
> email: cbidwell at usgs.gov
> work: 303-273-8642
> mobile: 303-435-6362
> _______________________________________________
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> EHPweb at geohazards.usgs.gov
> https://geohazards.usgs.gov/mailman/listinfo/ehpweb

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