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RE: [nv-l] TEC Forwarding - persistent?

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Subject: RE: [nv-l] TEC Forwarding - persistent?
From: "Treptow, Craig" <Treptow.Craig@principal.com>
Date: Mon, 31 Jan 2005 08:40:04 -0600
Delivery-date: Mon, 31 Jan 2005 14:40:55 +0000
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Thread-topic: [nv-l] TEC Forwarding - persistent?
At this point, our organization has a policy to not use load balancers for "failover" purposes between two servers.  If we need that, we are supposed to look into full blown clustering.  I know, it all depends on how you look at things. :)   So, I'm asking questions on both fronts to see if we can't get something that makes a failure totally hands off.
-----Original Message-----
From: owner-nv-l@lists.us.ibm.com [mailto:owner-nv-l@lists.us.ibm.com]On Behalf Of Erdey, Raymond M
Sent: Friday, January 28, 2005 3:51 PM
To: nv-l@lists.us.ibm.com
Subject: RE: [nv-l] TEC Forwarding - persistent?

How about putting the TEC servers behind an SLB and have one of the servers listed as the primary, when it goes down, the SLB will send traffic to the other TEC Server...


From: owner-nv-l@lists.us.ibm.com [mailto:owner-nv-l@lists.us.ibm.com] On Behalf Of Treptow, Craig
Sent: Tuesday, January 25, 2005 2:54 PM
To: nv-l@lists.us.ibm.com
Subject: RE: [nv-l] TEC Forwarding - persistent?

I suggested exactly that idea of specifying more than one server.  Our TEC folks rejected it, because they want to make sure that all systems sending events to TEC are always sending to the same TEC.  If we specified both, there would be a chance that we would be sending to a different TEC than the rest of the company.
 
I'll follow up on the TEC side.
 
Thanks!
-----Original Message-----
From: owner-nv-l@lists.us.ibm.com [mailto:owner-nv-l@lists.us.ibm.com]On Behalf Of James Shanks
Sent: Tuesday, January 25, 2005 2:48 PM
To: nv-l@lists.us.ibm.com
Subject: Re: [nv-l] TEC Forwarding - persistent?

Actually, you are asking the wrong folks. The session is established using the tec_create_handle call in the TEC EEIF library. So how that is done is TEC issue, not a NetView one.

That said, I believe that once the session is started, it is persistent, and would not be affected unless it fails for some reason (network connection drops for example) or is deliberately stopped, as you suggested.

But the TEC conf file is supposed to permit you to define a backup server in the ServerLocation field. As I understood it, this fancy footwork by your staff is unnecessary. Is TEC no longer supporting that?

James Shanks
Level 3 Support for Tivoli NetView for UNIX and Windows
Tivoli Software / IBM Software Group
Inactive hide details for "Treptow, Craig" <Treptow.Craig@principal.com>"Treptow, Craig" <Treptow.Craig@principal.com>


          "Treptow, Craig" <Treptow.Craig@principal.com>
          Sent by: owner-nv-l@lists.us.ibm.com

          01/25/2005 03:34 PM
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[nv-l] TEC Forwarding - persistent?

Hi.  We're running NV 7.1.4 on AIX 5.1.  We forward events to TEC and specify a DNS name for the TEC server.  Our TEC folks are working on a solution whereby they can use DDNS to update the TEC server entry and point it from the broken server to the backup server.

Does anybody know if we'll have to touch Netview in some way when they do that?  I suspect that NV only looks up the name when nvserverd starts and will use that until a "nvtecia -reload" is performed, or the daemon is bounced.

I'm not in a good position to test this today, so if somebody knows off-hand, that would be really helpful.

Thanks!

Craig




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