?
Solved

virtual ip

Posted on 2013-06-01
3
Medium Priority
?
271 Views
Last Modified: 2013-06-04
How we will create virtual ip address in rac

is it present in ifconfig output or we have to create it..
0
Comment
Question by:walkerdba
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
3 Comments
 
LVL 19

Expert Comment

by:simon3270
ID: 39214020
Sorry, misread that as "secondary" rather than virtual.  I'll let others answer...
0
 
LVL 19

Accepted Solution

by:
simon3270 earned 2000 total points
ID: 39215773
But I would note that in this sort of environment (where a VIP is used as a floating address, which is only assigned to one "active" node in a cluster), you don't configure Virtual IP addresses in ifconfig - the software which specifies the VIP (in this case, Oracle) has to configure the IP address itself, so that it can remove the address from a failed node and add it to a backup node if necessary.  You *do* add the same VIP entry to the /etc/hosts files on the two machines (or three, or four - however many in your cluster), or define it in DNS if you are using that.  If you did manually define the VIP on two nodes in the cluster through ifconfig, you would have two nodes with the same IP address at the same time, which will not work.

You should define the VIPs within Oracle (I think it may be $ORA_CRS_HOME/bin/VIPCA).
0
 

Author Closing Comment

by:walkerdba
ID: 39219939
yes
0

Featured Post

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Why doesn't the Oracle optimizer use my index? Querying too much data Most Oracle developers know that an index is useful when you can use it to restrict your result set to a small number of the total rows in a table. So, the obvious side…
I remember the day when someone asked me to create a user for an application developement. The user should be able to create views and materialized views and, so, I used the following syntax: (CODE) This way, I guessed, I would ensure that use…
This video explains at a high level with the mandatory Oracle Memory processes are as well as touching on some of the more common optional ones.
This video shows how to set up a shell script to accept a positional parameter when called, pass that to a SQL script, accept the output from the statement back and then manipulate it in the Shell.

801 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question