Re: 11.2 RAC without SCAN
- From: Andrew Kerber <andrew.kerber@xxxxxxxxx>
- To: Maaz Anjum <maazanjum@xxxxxxxxx>
- Date: Wed, 8 Jan 2014 16:20:50 -0600
Yes, you are correct you can do it in the hosts file and it should work for
lab purposes. Being the kind of guy I am, I used my lab RAC setup to learn
to configure my own DNS server, with passthru for anything besides the SCAN
address. Amazingly it only took me about a day to get it configured. I
thought it was well worth the trouble. The gui, system-config-bind, for
linux is actually pretty good, though not well documented. Rather than
cheating with the hosts file, you might consider just setting up a little
dns server as others have suggested. The final and most confusing piece
for me was setting up the resolv.conf files. They get re-created on each
boot for some reason, so I ended up having to copy them back in at each
boot using my rc.local file to get everything to work right on the cluster.
On Wed, Jan 8, 2014 at 3:36 PM, Maaz Anjum <maazanjum@xxxxxxxxx> wrote:
> I believe your cluster verify check will fail but you should be able to
> continue. Even though this is a test environment, you could configure both
> of the nodes (assuming theres two in the cluster) as DNS servers. I'm not
> sure which release of the software you will use, but RACAttack has a great
> toolkit that you can use.
>
>
> http://en.wikibooks.org/wiki/RAC_Attack_-_Oracle_Cluster_Database_at_Home/RAC_Attack_12c
>
> Hope this helps.
>
> Cheers,
> Maaz
>
>
> On Wed, Jan 8, 2014 at 4:16 PM, Dba DBA <oracledbaquestions@xxxxxxxxx>wrote:
>
>> This is not for production. I am doing some practice installs so I can
>> mess with RAC in a lab environment at work. These test servers don't have
>> SCAN IPs and SAs don't have time to set them up.
>>
>> When I do the laptop RAC installs such as
>> http://www.lab128.com/rac_installation_using_vb/article_text.html
>>
>> We just put the SCAN IPs into the hostfile, but its generally considered
>> a bad idea. I can still get the install to work if I do that right?
>>
>> no apps will connect to it. I need to do a large number of RAC and Data
>> Guard installs in a short time in the future. Place I work has alot of
>> scripts and standards to follow that are in several docs. I want to do some
>> trial runs to put alot of their scripts together, get a response file for
>> silent installs, etc... done, so when I have to do it for real, its less of
>> a hassle. So this is just for me.
>>
>
>
>
> --
> A life yet to be lived...
>
--
Andrew W. Kerber
'If at first you dont succeed, dont take up skydiving.'
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