Re: Oracle RAC DR test
- From: Sanjay Mishra <smishra_97@xxxxxxxxx>
- To: "ian@xxxxxxxxxxxxxxxxx" <ian@xxxxxxxxxxxxxxxxx>, "gjilevski@xxxxxxxxx" <gjilevski@xxxxxxxxx>
- Date: Thu, 12 Dec 2013 13:05:32 -0800 (PST)
Has anyone tried the process for clone.sh and can share the experience. I am
also working to create 11g R2 RAC on VBox to try the process before document
the steps and so want to check if anyone has used and found/share his
experience.
Thanks
Sanjay
On Thursday, December 12, 2013 3:46 PM, "MacGregor, Ian A."
<ian@xxxxxxxxxxxxxxxxx> wrote:
Done.
Please submit future requests as an RT ticket.
Thank you
Ian
-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On
Behalf Of Guenadi Jilevski
Sent: Thursday, December 12, 2013 12:35 PM
To: smishra_97@xxxxxxxxx
Cc: Freek.DHooge@xxxxxxxxx; nassyambasha@xxxxxxxxx; oracle-l@xxxxxxxxxxxxx
Subject: Re: Oracle RAC DR test
Hi,
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@xxxxxxxxx> 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@xxxxxxxxx> 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@xxxxxxxxx
tel +32(03) 451 23 82 <tel:%2B32%2803%29%20451%2023%2082>
http://www.uptime.be <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@xxxxxxxxx> 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@xxxxxxxxx>
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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