20040920:LDM failover

Hi David,

> request DDPLUS|IDS      ".*" atm.geo.nsf.gov PRIMARY
> request HDS     ".*" atm.geo.nsf.gov PRIMARY
> request DDPLUS|IDS      ".*" chisel.rap.ucar.edu ALTERNATE
> request HDS     ".*" chisel.rap.ucar.edu ALTERNATE


Given this configuration, if atm goes down..as it is currently, you
~should be getting the feed from chisel.

Cheers,

Jeff
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Jeff Weber                                    address@hidden        :
Unidata Program Center                        PH:303-497-8676        :
University Corp for Atmospheric Research      3300 Mitchell Ln       :
http://www.unidata.ucar.edu/staff/jweber      Boulder,Co 80307-3000  :
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On Mon, 20 Sep 2004, Unidata Support wrote:

>
> ------- Forwarded Message
>
> >To: Unidata Support <address@hidden>
> >cc: address@hidden
> >From: David Yeung <address@hidden>
> >Subject: Re: 20040919: Failed to connect to atm.geo.nsf.gov
> >Organization: UCAR/Unidata
> >Keywords: 200409201152.i8KBqGnJ006246
>
> Sorry, I should have received your email regarding  the inaccessible of
> the host.
> I have just overlooked it. But I have another question, here is my ldmd.conf
>
> request DDPLUS|IDS      ".*" atm.geo.nsf.gov PRIMARY
> request HDS     ".*" atm.geo.nsf.gov PRIMARY
> request DDPLUS|IDS      ".*" chisel.rap.ucar.edu ALTERNATE
> request HDS     ".*" chisel.rap.ucar.edu ALTERNATE
>
> When atm.geo.nsf.gov goes down, will the ldm automatically switch to
> chisel.rap.ucar.edu? I am running LDM 6.0.14.
>
> Thanks
>
> David Yeung
> Hong Kong University of Science & Technology
>
>
> Unidata Support wrote:
>
> >>From: David Yeung <address@hidden>
> >>Organization: Hong Kong University of Science & Technology
> >>Keywords: 200409190645.i8J6jvnJ006933 IDD
> >>
> >>
> >
> >Hi David,
> >
> >
> >
> >>We are not able to get LDM feed from atm.geo.nsf.gov
> >>since around 09/19 00:00 UTC, and we are not even able to ping
> >>that host. Is there any problem in the atm.geo.nsf.gov?
> >>
> >>
> >
> >Yes, atm became inaccessible at approximately 8:30 Saturday morning.
> >A quick check shows that it remains inaccessible now.
> >
> >At about 9 am yesterday, I sent out a note to the ldm-users email list
> >to failover to alternate feed sites.  Here is the text:
> >
> >  From address@hidden  Sat Sep 18 08:57:21 2004
> >  To: address@hidden
> >  Subject: 20040918: IDD top level relay node atm.geo.nsf.gov down
> >  Date: Sat, 18 Sep 2004 08:57:20 -0600
> >
> >  >From: Unidata User Support <address@hidden>
> >  >Organization: Unidata Program Center/UCAR
> >  >Keywords: IDD atm failover
> >
> >  IDD sites feeding off of atm.geo.nsf.gov:
> >
> >  The top level IDD relay node atm.geo.nsf.gov is currently inaccessible.
> >  If you feed from atm, please switch to feed from your failover.
> >
> >  If your failover site is inaccessible, please failover to one of the
> >  following machines using the preferance order listed:
> >
> >  IDD relay node             datastreams available
> >  --------------------------+----------------------------
> >  emo.unidata.ucar.edu       all non-restricted feeds
> >  oliver.unidata.ucar.edu    all non-restricted feeds
> >  unidata2.ssec.wisc.edu     IDS|DDPLUS, HDS, FSL2, UNIWISC, NNEXRAD, FNEXRAD
> >  thelma.ucar.edu            all non-restricted feeds
> >
> >  We will send an email when we believe that it is safe to fail back
> >  to atm.
> >
> >  Tom Yoksas
> >
> >Since I see that you are subscribed to the ldm-users email list under
> >address@hidden, you should have received the message.  Did you not
> >receive the notice to failover?  If so, we will have to figure out why
> >the email did not get through to you.
> >
> >
> >
> >>Regards
> >>David Yeung
> >>Hong Kong University of Science & Technology
> >>
> >>
> >
> >Cheers,
> >
> >Tom Yoksas
> >--
> >NOTE: All email exchanges with Unidata User Support are recorded in the
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> >through the web.  If you do not want to have your interactions made
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> >
> >
>
> --
> NOTE: All email exchanges with Unidata User Support are recorded in the
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> ------- End of Forwarded Message
>