Re: Oracle 10g TAF Vs FAN

From: DA Morgan <damorgan_at_psoug.org>
Date: Sun, 16 Sep 2007 23:50:02 -0700
Message-ID: <1190011793.79522@bubbleator.drizzle.com>

Ravip via DBMonster.com wrote:
> DA Morgan wrote:

>>> Hi,
>>>
>> [quoted text clipped - 3 lines]
>>> Thanks in advance.
>> The question you should be asking is TAF and FCF.
>>
>> FAN is messaging ... essentially AQ technology being used to message
>> between various high availability components.
>>
>> The two transparent failover technologies are TAF (Transparent
>> Application Failover) and FCF (Fast Connection Failover). You will
>> find the docs describing them if you go to www.psoug.org. Click on
>> Links and then follow the High Availability.

>
>
>
> My aim is to "evenly distribute the work load" to both nodes on my RAC. As of
> now only 1 node is fully loaded and the other just 2% or 3%. To enable this
> what configuration change should I make ?
> I have configured the services based on TAF policy. The first node is
> preferable and the second node is available.

You really need to read the documentation. TAF has absolutely nothing to do with listener load balancing.

If you configure your TNSNAMES.ORA properly the nodes will load balance themselves.

http://www.psoug.org/reference/rac.html
Look at the TNSNAMES.ORA

-- 
Daniel A. Morgan
University of Washington
damorgan_at_x.washington.edu (replace x with u to respond)
Puget Sound Oracle Users Group
www.psoug.org

Received on Mon Sep 17 2007 - 01:50:02 CDT