Comments for The Grumpy DBA blogs . . .

Comment on TOD – Recycling the Recycle Bin by Hi

Hi — Thu, 11 Mar 2010 13:05:18 +0000

I have tried this but i have this error message,
the specified initialization parameters is not modifiable with this option.

Please help

Comment on Slewing the 11gR2 dragon by Balaji R

Balaji R — Fri, 05 Mar 2010 08:44:05 +0000

Really helped. Thanks.

Comment on 11gR2 new features: SCAN by tim carroll

tim carroll — Tue, 23 Feb 2010 23:02:35 +0000

Yes – you can still use scan for specific instance – just use instance_name in tnsnames.ora

Comment on 11gR2 new features: SCAN by Sri

Sri — Wed, 10 Feb 2010 06:55:39 +0000

Can you add additional SCAN vips after initial installation. Initially we used only 2 vips say. Now we want to add a third SCAN listener. Can it be done?

Comment on TOD – Keep Listening, Stop Logging by Asher

Asher — Thu, 14 Jan 2010 06:12:58 +0000

Thanks. very useful.

Comment on Slewing the 11gR2 dragon by Matt

Matt — Mon, 11 Jan 2010 16:25:57 +0000

Great INFO!!!

Comment on 11gR2 new features: SCAN by Nrsun

Nrsun — Wed, 06 Jan 2010 13:08:09 +0000

I am not sure what we get by using scan. in a real world production , you want to be able to control where connections are heading. The main advantage of RAC is applicaiton partitioning and with SCAN you can not achive it. So why make it mandatory.. ? How can I bypass the 11GR2 installation with out SCAN ?

Comment on Slewing the 11gR2 dragon by jason arneil

jason arneil — Wed, 16 Dec 2009 11:38:42 +0000

Hi Jay,

Thanks for blogging this, just ran into and you have provided me with the solution in an easily digestible article!

cheers,

jason.

Comment on 11gR2 new features: SCAN by Mike

Mike — Mon, 07 Dec 2009 17:28:44 +0000

I’m still a little confused on how to setup the SCAN.

For example, I’ve got a 2 node cluster

oradb-0a
oradb-0b

each of those has a public IP, a private IP, and a VIP

When I go to define the SCAN in dns, do i just point it to 2 arbitrary IP’s on the same subnet, or do I give it the public or VIP’s of the 2 nodes?

Comment on 11gR2 new features: SCAN by Jay Caviness

Jay Caviness — Mon, 30 Nov 2009 15:29:05 +0000

No, you should only have one SCAN per cluster, the round-robin IPs will resolve to whichever nodes is least loaded. I don’t believe you can create a round-robin SCAN withing /etc/hosts as there is no way that I know of to have three IP addresses point to the same hostname. You can still use the VIPs to connect to your databases, though it is not recommended because it will not give the same HA functionality as the SCAN.