Re: Oracle RAC cluster Resource for External Application

  • From: Sanjay Mishra <smishra_97@xxxxxxxxx>
  • To: alever@xxxxxxxxx, surachart <surachart@xxxxxxxxx>
  • Date: Tue, 1 Dec 2009 10:39:54 -0800 (PST)

Thanks Alessandro and Surachart. Actually what i am trying is only starting one 
of the BMC daemon for backup which is currently started with Oracle Startup 
script on non-RAC environment with rc scripts. This is the first RAC at the 
client and so thought to run BMC Sqlbacktrack daemon to be started with Cluster 
resources or had to put seperate Job.

Regards
Sanjay




________________________________
From: Alessandro Vercelli <alever@xxxxxxxxx>
To: surachart <surachart@xxxxxxxxx>
Cc: oracle-l <oracle-l@xxxxxxxxxxxxx>
Sent: Tue, December 1, 2009 8:21:22 AM
Subject: Re: Oracle RAC cluster Resource for External Application

Surachart,

thanks for your confirmation, in better and formal terms, of what I said :))

A part from Oracle docs, I add that much better is having a dedicated VIP for 
databases (if you have more than one in the cluster, of couse)in order to 
relocate each db indipendently. 

Alessandro



>Oracle recommend, don't use existing VIP (listener). should use Application
>VIP
>- All databases use one VIP (for listener)
>
>- Each of applications separate VIP (2 applications = 2 vips)
>
>You can define a virtual IP address for an application so users can access
>the application independently of the node in the cluster where the
>application is running. This is referred to as the application VIP. You can
>define multiple application VIPs, with generally one application VIP defined
>for each application running. The application VIP is tied to the application
>by making it dependent on the application resource defined by Cluster Ready
>Services (CRS).
>
>http://download.oracle.com/docs/cd/B28359_01/rac.111/b28255/crschp.htm#g1022986
>
>Good Luck
>Surachart Opun
>http://surachartopun.com
>
>> Sanjay,
>>
>> the 3rd app. can use an existing VIP but not the same VIP:port combination,
>> of course.
>>
>> Anyway, if there isn't a reason for not having a dedicated VIP for the 3rd
>> app., I suggest to use it, you will be able to relocate the 3rd app.
>> indipendently from the Oracle db bounded on the VIP.
>>
>> Alessandro
>>
>> >Surachart
>> >
>> >Does the 3rt Part APplication which will be protected with Oracle
>> Clusterwae need an additional VIP or what I can say public IP to manage it
>> or I can utilize the existing Oracle IP. I am confused on the VIP part while
>> all othe is clear and so any help is appreciated.
>> >
>> >Sanjay


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