Re: Oracle RAC DR test

You can use clone.sh to clone GI and RDBMS homes to build a new cluster. After that either restore DB or switchover if toy take the path of building a standby database.

Best Regards,

Guenadi Jilevski

On Thu, Dec 12, 2013 at 10:20 PM, Sanjay Mishra <smishra_97_at_yahoo.com>wrote:

> Thanks DHooge and Maaz
>
> Yes I agree that fresh Install is better option but the issue is that
> there are several patches been done on various homes and so it need to be
> documented every time and moreover company want to check if there are 18
> such RAC environment need to be recreated on DR for any outage, then how
> long it will take and the process.
>
> Yes it is also true that we need to run few root based command and want to
> see if anyone has done such exercise.
>
> Thanks
> Sanjay
>
>
> On Thursday, December 12, 2013 3:05 PM, D'Hooge Freek <
> Freek.DHooge_at_uptime.be> wrote:
> Sanjay,
>
> With Oracle RAC, the name of the host is deeply embedded in the cluster
> registry.
> It is even so, that you can not change the hostname of a cluster node, you
> need to drop de node from the cluster, rename it and add it back again.
>
> So, I think your only option is to do a normal install of the GI on your
> DR servers.
> Of course, this is something you can prepare using silent install scripts
> if you only want to do the installation at the moment of a DR.
>
>
> regards,
>
> --
> Freek D'Hooge
> Uptime
> Oracle Database Administrator
> email: freek.dhooge_at_uptime.be
> tel +32(03) 451 23 82
> http://www.uptime.be
> disclaimer: www.uptime.be/disclaimer.html
>
>
>
>
> On do, 2013-12-12 at 11:06 -0800, Sanjay Mishra wrote:
>
> Nassyam
>
>
>
> Create Dataguard from 4node to 2 node is not an issue. The main
> requirement is how to clone Oracle Grid infrastructure using the backup
> taken for software on Primary site. It is DR exercise where Database
> restore is not a challenge as long as Grid infrastructure is ready. So key
> challenges are to identify the various script to be executed after the
> Software from one of the node is restored on the DR exercise server and how
> to create the various configuration files including ASM based ocr/voting
> disk and other ASM configuration.
>
>
>
> Once this is done, Database cloning using Tape restore will not be an
> issue. This is one time exercise to check and document the procedure to
> rebuild the environment from offshore tape backup
>
>
>
> TIA
>
> Sanjay
>
>
>
> On Thursday, December 12, 2013 1:52 PM, Nassyam Basha <
> nassyambasha_at_gmail.com> wrote:
>
> Hi Sanjay,
>
>
>
> Are you looking for 4-node to 2-node DR setup?
>
>
>
> If so you can refer below links. I usually refer MAA documents.
>
>
>
>
> http://www.oracle.com/au/products/database/maa-wp-10g-racprimaryracphysicalsta-131940.pdf
>
>
>
> http://www.oracledba.org/11gR2/dr/11gR2_dataguard_RAC_to_RAC.html
>
>
>
> documentsay point to 2-node standby or 3-node, you may need to perform
> changes only few parameters like FAL_SERVER, LOG_ARCHIVE_CONFIG so on. You
> will get idea if you refer those links.
>
>
>
> Documents you may not get exactly as per your environment, you can refer
> them and of course you can modify steps as required.
>
>
>
> Hope this helps.
>
>
>
> But the below question is confusing still, can you describe more ?
>
>
> what are the steps for Grid Infrasturcture cloning?
>
>
>
> Thank you,
>
> Nassyam Basha
> Sent from iPhone
>
>
> On Dec 12, 2013, at 11:48 PM, Sanjay Mishra <smishra_97_at_yahoo.com> wrote:
>
>
>
> Hi
>
>
>
> Can anyone share the doc/reference for doing DR exercise for 4-node
> Primary RAC (11g R2) on 2-node DR RAC ? We have 4-Node Oracle 11g R2 RAC
> with 8 Databases using ASM based OCR/Voting and Databases on Linux
> environment. Now Company wants to perform a DR exercise where backup from
> Primary Tape will be used to create the DR environment using only 2nodes.
> So I appreciate if someone share experience in RAC cloning/Setup as what
> are the steps for Grid Infrasturcture cloning.
>
>
>
> TIA
>
> Sanjay
>
>
>
>
>
>
>

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