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Re: 20001023: Failover site request from PSU

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  • Subject: Re: 20001023: Failover site request from PSU
  • Date: Tue, 24 Oct 2000 11:15:10 -0600 (MDT)
Hi Jeff,

It is against general policy to feed the same institution from two sites.
The reason for this is.. you guessed it.. bandwidth. If you also start
pulling the data from another machine into your internal network, it may
actually make things worse. We STRONGLY discourage this procedure. Other
options may be relocating your primary machine to be closer to navier
(electronically) to eliminate the feed problems. If the "other I2" site
was solely for failover things would probably not get to bottlenecked at
PSU if diligence was used to maintain feeding from navier anytime it was
up and recieving data. If you are experiencing steady problems from navier
and stayed on failover for any duration I believe it could cause severe
IDD congestion converging at PSU making your problem worse. Sooo..

First lets see if you can contact your sys admin and see if there is a way
to improve the hops from your machine to navier, then if nothing can be
improved there we may want to find another I2 site for failover. It is
"policy" to have only 1 feed to an institution and then having that
machine feed ALL internal machines, but PSU has been great at providing
access to other institutions so we want to make sure you all are happy and
have the data you need in a timely manner. I would prefer to solve this
from an internal network position, but remain open to make sure your needs
are met..

Let me know,

-Jeff
____________________________                  _____________________
Jeff Weber                                    address@hidden
Unidata Support                               PH:303-497-8676 
NWS-COMET Case Study Library                  FX:303-497-8690
University Corp for Atmospheric Research      3300 Mitchell Ln
http://www.unidata.ucar.edu/staff/jweber      Boulder,Co 80307-3000
________________________________________      ______________________

On Mon, 23 Oct 2000, Unidata Support wrote:

> 
> ------- Forwarded Message
> 
> >To: address@hidden
> >Subject: Failover site
> >Organization: Penn State
> >Keywords: 200010240132.e9O1WF422447 IDD failover
> 
> 
> Hi folks,
> 
> We're experiencing some reliability problems here at PSU with the
> Meteo department and their IDD machine - navier.meteo.psu.edu. Would it be
> possible for us to get access to a failover site at another 
> I2-connected location? The machine name is catena.essc.psu.edu.
> Also, if you have any references out there to our old address:
> ihlseng.ugems.psu.edu, they can be removed.
> 
> Thanks a bunch!
> 
> -JEff
> 
> 
> ------- End of Forwarded Message
> 
>