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Oracle RAC install

Questions relating to Oracle Real Application Clusters (RAC) and Clusterware.

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orcldba2000
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Oracle RAC install

Postby orcldba2000 » Wed Aug 07, 2013 5:31 pm

I am attempting an Oracle RAC install and had some doubts
I am using the document
Oracle 11g Release 1 RAC On Linux Using NFS

In the following section...I understand that this has to be created only on RAC1 server
However...has this to be done with userid as oracle or as user root ?
=========================
Create Shared Disks

First we need to set up some NFS shares. In this case we will do this on the RAC1 node, but you can do the on a NAS or a third server if you have one available. On the RAC1 node create the following directories.

mkdir /shared_config
mkdir /shared_crs
mkdir /shared_home
mkdir /shared_data

orcldba2000
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Re: Oracle RAC install

Postby orcldba2000 » Wed Aug 07, 2013 5:32 pm

http://www.oracle-base.com/articles/11g ... ng-nfs.php
here is the link to the article I am using

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Re: Oracle RAC install

Postby Tim... » Wed Aug 07, 2013 5:41 pm

Hi.

That is all done as the root user.

Remember, putting the NFS shares on one of the RAC nodes is OK for playing about with RAC and NFS, but it is not appropriate for a real system as losing the node with the NFS shares would mean the other nodes can't function either

Cheers

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orcldba2000
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Re: Oracle RAC install

Postby orcldba2000 » Wed Aug 07, 2013 6:00 pm

Thanks Tim

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Re: Oracle RAC install

Postby Tim... » Wed Aug 07, 2013 6:57 pm

No problem. :)

Cheers

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orcldba2000
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Re: Oracle RAC install

Postby orcldba2000 » Thu Aug 08, 2013 8:27 pm

Hi Tim,

Further questions...

I have completed the install till the runcluvfy.sh script.
The errors I found I fixed until the following

I ran the script
runcluvfy.sh stage -pre crsinst -n rac1,rac2 -verbose

This gave me the following error

Checking NTP daemon command line for slewing option "-x"
Check: NTP daemon command line
Node Name Slewing Option Set?
------------------------------------ ------------------------
rac2 no
rac1 no
Result:
NTP daemon slewing option check failed on some nodes
PRVF-5436 : The NTP daemon running on one or more nodes lacks the slewing option "-x"
Result: Clock synchronization check using Network Time Protocol(NTP) failed

On researching on the internet I found that there are two methods
a) NTP
b) No NTP

what do you advise ?

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Re: Oracle RAC install

Postby Tim... » Thu Aug 08, 2013 11:25 pm

Hi.

Personally I would advise the NTP option.

This explains what you need to do.

http://www.oracle-base.com/articles/lin ... ac-and-ntp

Cheers

Tim...
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orcldba2000
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Re: Oracle RAC install

Postby orcldba2000 » Fri Aug 09, 2013 4:06 pm

Hi TIM
I made a boo-boo
of course this is not just one boo-boo but a part of many booboos done and many more to follow
I downloaded 11GR2 because 11GR1 is not available on edelivery
I realiased my booboo
so now I am starting all over again and using
http://www.oracle-base.com/articles/11g ... ng-nfs.php

Oracle Database 11g Release 2 RAC On Linux Using NFS

I think there are some typos in this document
The section where you describe the oracle user bash profile
I think you have to make the same bash profile on both nodes but with a few changes...

The following line is not clear since VM's are not being used
quote
We've made a lot of changes, so it's worth doing a reboot of the VM at this point to make sure all the changes have taken effect.
end quote

I hope you do not take offence with my doubts and questions and pointing out typo's

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Re: Oracle RAC install

Postby Tim... » Sat Aug 10, 2013 12:10 am

Hi.

Yes. It should have said servers, not VM. I've changed it. :)

The process is the same on each server, but you will have to adjust the values appropriately, which is why I say in the article, "Remember to amend the environment setting accordingly on each server."

Cheers

Tim...
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