Re: changing back from using vip to physical ip

From: Guillermo Alan Bort <cicciuxdba_at_gmail.com>
Date: Sun, 28 Feb 2010 21:45:20 -0300
Message-ID: <172762181002281645n244ae586u8448f150c8252933_at_mail.gmail.com>

While I know little of Oracle Apps to be able to answer this, perhaps a 'simpler' approach would be to set up the ip that is currently virtual al physical on any one node and disable ipmp until the sysadmins fix the issue. As far as I know, there is no need to relink the ORACLE_HOME for RAC. Oracle (starting with 10g) is RAC ready always... you simply need to tell it which nodes will be up.

hth
Alan.-

On Sun, Feb 28, 2010 at 8:18 PM, Kumar Madduri <ksmadduri_at_gmail.com> wrote:

> Hi
> In an Oracle applicationngs environment, is it possible to change back from
> using a vip configuration to a physical ip configuration.
> This is just a short term fix or workaround for an issue that we are
> experiencing.
> With vip what is happening is that even if there is a slight network
> glitch, the ipmp is initiating the failover and node1 vip fails over to
> node2 and listener on node 2 also goes down at the same tim.
> While the network enginners and unix sysadmins are trying to figure out the
> issue, we got this idea (not a good idea but if we can alteast hold the
> application then it would be a relief to the users because this is
> happening frequently). So idea is
> 1. define a listener with physical IP and bring it up
> 2. Relink OH without rac
> 3. Make relevant changes to init.ora
> May be 2 and 3 are not neccessary but good to have.
> 4. Run autoconfig on all middle tiers and for other 3 party apps change tns
> entries and change jdbc connections to use physical IP instead of vip.
>
> Is this possible at all ?
>
> Thank you
> Kumar
>

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Received on Sun Feb 28 2010 - 18:45:20 CST