Re: Add/remove RAC nodes and GC
Date: Fri, 30 May 2014 20:47:56 +0100
Message-ID: <CABe10sat+6ea7fkWjsFTEHaTm4VAdCD55g9rNqsUmCH0ts-ebA_at_mail.gmail.com>
I *think* you may run into trouble with the SCAN_LISTENER targets which can probably be re-configured and more particularly with the cluster target which will be monitored initially by one of the agents which will be removed. I *think* if I were doing this I would probably lean towards removing the cluster from monitoring before making this change and then adding back in afterwards. I haven't however ever done this so could be way off beam. Of course I'd also recommend EM 12 while you were at it :)
On Fri, May 30, 2014 at 7:42 PM, Radoulov, Dimitre <cichomitiko_at_gmail.com> wrote:
> Thank you very much for the valuable comments, Pete!
>
> I thought that the installation order could have been important.
>
> Thanks again!
>
> Best regards,
> Dimitre
>
> Il 30/mag/2014 18:41 "Peter Sharman" <pete.sharman_at_oracle.com> ha scritto:
>
> Dimitre
>>
>> Let me preface this by saying my 11g knowledge has completely atrophied
>> over the past couple of years since 12c was announced, so I can't remember
>> any gotchas for that particular release. However, in general terms, I
>> would normally say add the agents to the new nodes AFTER becoming part of
>> the cluster and remove the targets BEFORE the nodes are removed. The
>> reason I would do it that way in 12c is for the addition it just makes sure
>> no targets are forgotten about, and for the deletion it makes cleanup
>> easier and neater.
>>
>> As you say, it can be done both ways.
>>
>> And while I've typed this some vague recollection about the removal being
>> much harder afterwards in 11g has come back, but I can't remember any more
>> details, sorry!
>>
>> Pete
>>
>> Pete Sharman
>> Principal Product Manager
>> Enterprise Manager Product Suite
>> 33 Benson Crescent CALWELL ACT 2905 AUSTRALIA
>> Phone: +61262924095 | | Fax: +61262925183 | | Mobile: +61414443449
>>
>> "Controlling developers is like herding cats."
>> Kevin Loney, Oracle DBA Handbook
>>
>> "Oh no, it's not, it's much harder than that!"
>> Bruce Pihlamae, long term Oracle DBA
>>
>>
>> -----Original Message-----
>> From: Radoulov, Dimitre [mailto:cichomitiko_at_gmail.com]
>> Sent: Friday, May 30, 2014 9:55 PM
>> To: oracle-l_at_freelists.org
>> Subject: Add/remove RAC nodes and GC
>>
>> Hi list,
>>
>> RAC 11.2.0.3.5 on RHEL 5.9
>> GC 11g
>>
>> We need to move some RAC nodes to new servers and we plan to do it by
>> adding new nodes and removing the old ones.
>> The EM GC agents are already installed and configured on the existing
>> nodes.
>>
>> Should I install and configure the agents on the new nodes before or
>> after adding them to the cluster?
>> I suppose both are possible, but I'm looking for the best/easiest way.
>> And what about the nodes to be removed: stop/deconfigure the targets
>> before or after the node removal?
>>
>> Your ideas and suggestions are welcome!
>>
>>
>> Regards
>> Dimitre
>> --
>> http://www.freelists.org/webpage/oracle-l
>>
>>
>>
-- Niall Litchfield Oracle DBA http://www.orawin.info -- http://www.freelists.org/webpage/oracle-lReceived on Fri May 30 2014 - 21:47:56 CEST