RAC Guard or RAC?

If I want load balancing in 2 node RAC environment. I shouldn't install MSCS, but only RAC. Then I don't have a virtual host or virtual IP.
If I use RAC Guard with MSCS, then I have a virtual ip but no load balancing.
Please anyone confirm me this is true, thanks and appreciated.

Yes, you are correct. We cover this in oour new book, check it out at:
http://www.dba-oracle.com/bp/bp_book1_rac.htm
Mike Ault

Similar Messages

Steps to do the R12 on 11.2.0.2 RAC to Non-Rac cloning on Win2008 64bit

Please brief the steps to do the R12 on 11.2.0.2 RAC to Non-Rac cloning on Windows 2008 64-bit.
There is a metalink document but that says it for linux environment but not windows. Please brief the steps if someone has done it on windows.

ora-appsdba wrote:
Please brief the steps to do the R12 on 11.2.0.2 RAC to Non-Rac cloning on Windows 2008 64-bit.
There is a metalink document but that says it for linux environment but not windows. Please brief the steps if someone has done it on windows.
The steps should be the same for Windows (with minor changes, like you may need to create Oracle service before duplicating the database).
Cloning Oracle Applications Release 12 with Rapid Clone [ID 406982.1]
Rapid Clone Documentation Resources For Release 11i and 12 [ID 799735.1]
Cloning Oracle E-Business Suite Release 12 RAC-Enabled Systems with Rapid Clone [ID 559518.1]
Certified RAC Scenarios for E-Business Suite Cloning [ID 783188.1]
Thanks,
Hussein

Rac to non rac standby file name convert option

Hi,
Rac to non rac with ASM both, please find the below details.
Primary Setup.
diskgroup NAME for all files for both primary and standby +DATA
pmon,unique and service name at standby-rac1, rac2
db version -11.2.0.1
platform - HP -UX
$ ps -ef | grep pmon
oracle11 22329 1 0 22:33:55 ? 0:28 ora_pmon_rac1
oragrid 23522 1 0 Jan 2 ? 1:30 asm_pmon_+ASM1
$ ps -ef | grep pmon
oracle11 22329 1 0 22:33:55 ? 0:28 ora_pmon_rac2
oragrid 23522 1 0 Jan 2 ? 1:30 asm_pmon_+ASM2
database and Unique name - RAC, so all files on ASM created under +DATA/RAC
Stanby setup
diskgroup NAME for all files for both primary and standby +DATA
pmon,unique and service name at standby- racdr
$ ps -ef | grep pmon
oracle11 22329 1 0 22:33:55 ? 0:28 ora_pmon_racdr
oragrid 23522 1 0 Jan 2 ? 1:30 asm_pmon_+ASM
database name and unique name is racdr, so all files on ASM created under DATA/racdr when cloned with RMAN from primary backup. (by settling log_file and db_file covert from DATA/RAC to +DATA/racdr )
so now everything ok... but how do we create a new datafiles at primary for the above setting success, ??? and reflect on standby ???.
1.create tablespace tbs size 10g;
2.create tablespace tbs datafile '+/DATA/RAC/test.dbf size 10g; ??
3.create tablespace tbs datafile '+/DATA size 10g;???
4. directories name on asm and specifying on the convert options is case sensitive ???
Thanks in advance...

thats fine john,
log_file and db_file covert from '+DATA/RAC', '+DATA/racdr'
my primary is rac
my standby us racdr
so i mentioned above folders on convert option, so if i created datafile with or without specifying a diskgroup like mentione below, with or without specifying the directory like below
will all create on under '+DATA/racdr' diskgroup ??
create tablespace test DATA size10m; --> not specidying a full path as DATA/RAC' so will it go to DATA/racdr' ?? or creating under DATA ?diskgroup on standby????
Thanks,

Upgrade Oracle 10g RAC - Oracle 11g RAC on Linux Environment

We are planning to Upgrade our databases to Oracle 10g RAC - Oracle 11g RAC which is Linux Environment. Kindly suggest me the best option for migration. Our production database size is 80GB.
- Frest installation of oracle 11g using export/iimport dumps
- Migration
- Upgrade process
Any information regarding this will be appreciated.

Pl identify exact versions of "10g" and "11g", along with the exact OS versions.
Pl see the upgrade doc - http://docs.oracle.com/cd/E11882_01/server.112/e23633/toc.htm
HTH
Srini

How to create a standby redolog from rac to non rac ??

Hi,
How to create a standby redolog from rac to non rac DR setup..???
in rac we can create with specifying thread number for each instances..... but this will be replicating to standby ....so how this will act/create on single DR??
pls help

854393 wrote:
Thanks Shivanandha,
(maximum number of logfiles for each thread + 1) * maximum number of threads
Using this equation reduces the likelihood that the primary instance's log writer (LGWR) process will be blocked because a standby redo log file cannot be allocated on the standby database. For example, if the primary database has 2 log files for each thread and 2 threads, then 6 standby redo log file groups are needed on the standby database.In maximum performance mode you can keep same number of redo logs but having one more redo log member for each thread is recommended and mandtory for other protection modes.
How to create a standby redolog from rac to non rac DR setup..???
in rac we can create with specifying thread number for each instances..... but this will be replicating to standby ....so how this will act/create on single DR??pls help
Yes, even your DR is RAC or non-RAC, you must have both threads, because each instance information exist on own thread, So to perform redo transition from both the instances, you must have both standby redo log threads even though if it is non an RAC DR.
Hope This helps.

Finding the order of archive logs in RAC to NON-RAC manual cloning

Hi,
I am in the process of automating a RAC to NON-RAC clone using traditional method [ not using RMAN ].
Here are the steps:
On Source:
Record the sequence number and thread of the instance
put the database in begin backup mode
copy the files
disable the backup mode
record the sequence number and thread of the instance
prepare the order of the archive logs which will be needed for recovery ==> Here is where I need help
On Target:
Restore the backup
Issue recovery using the order of archive logs identified ==> Failing as order is not correct.
I am finding the archive logs based on FIRST_TIME# and preparing the order which is not correct. I think i should be using SCN but not sure what should be the criteria.
Could you please let me know on what basis we can find the order of the archive logs which will be asked during the recovery ?
Your quick response is appreciated. Thanks in advance for your help.
Thanks
Suneel

Yes, When we execute recover database using backup controlfile until cancel, will prompt for the redo log sequences.
But as i mentioned before, I am trying script everything and cannot manually enter the sequence numbers required. I need to know the archives and thread it is going to ask [ in what order as well ] so that recovery command can be scripted in shell.
Please let me know if there is a away to find the order of archive logs which needs to be applied to recover [ if this is a NON-RAC, we can simply go with the sequence numbers but since it is a RAC, i should know the thread number as well ].
Thanks

Can we run 11g RAC and 12c RAC in the same server?

There is a requirement to run 11g RAC and 12C RAC in the same server for a year or so and then remove 11g RAC?
Current setup:
HP-unix 3 node RAC on 11g R2
4CPU
64 GB RAM
3 TB SAN storage
no ASM
Upgrade setup:
HP-unix 3 node RAC on 12C RAC
8CPU
128 GB RAM
6+ TB SAN storage
ASM
We are asked to use the same server and upgrade Hardware to install and run 12C RAC. What are the implications of running RAC in the same server/nodes?
Thank you for your time!

Hi,
The following table shows you the compatibility between various versions:
Clusterware
ASM
DB
Certified
12.1
12.1
12.1
Y
12.1
12.1
11.2(a)
Y
12.1
12.1
11.1(a)
Y
12.1
12.1
10.2(a)
Y
11.2
11.2(b)
11.2
Y
11.2
11.2(b)
11.1
Y
11.2
11.2(b)
10.2
Y
11.1
11.1
11.1(c)
Y
11.1
11.1
10.2
Y
11.1
11.1
10.1
Y
11.1
10.2
11.1
Y
11.1
10.2
10.2
Y
11.1
10.2
10.1
Y
11.1
10.1(d)
11.1
Y
11.1
10.1(d)
10.2
Y
11.1
10.1
10.1
Y
10.2
10.2
10.2
Y
10.2
10.2
10.1
Y
10.2
10.1(d)
10.2
Y
10.2
10.1
10.1
Y
10.1
10.1
10.1
Y
(a) Pre-12.1 database instances require an ASM instance resident on the same node as the database instance. Pre-12.1 database instances cannot leverage the implicit HA of Flex ASM.
Oracle Clusterware (CRS/GI) - ASM - Database Version Compatibility (Doc ID 337737.1)

Oracle EBS Cloning - RAC to Non-RAC on windows 2008

Kindly note that my Client is currently running Oracle E-Business Suit R12.1.1 + 11.2.0.2 on Windows
Server 2008R2 on RAC + ASM.
I have been requested to perform the Clonning of the Production to Test Enviroment from RAC to non
RAC?
I have gone through the note id Certified RAC Scenarios for E-Business Suite Cloning [ID 783188.1] which
says that Oracle E-Business Suit R12.1.1 is not supported for RAC to RAC or RAC to non RAC Clonning?
Please advise whether the Clonning is possible from RAC to non RAC enviroment on Windows 2008 R2 for
R12.1.1 + 11.2.0.2?
What is the possible risk if I go ahead with the same Oracle non supported Enviroment ?

R12 clone with RMAN auxiliary db.

RAC to NON-RAC Cloning in R 12 using Rapid Clone

Hi,
We are using EBS 12.0.4 with DB version Oracle Database 10g Enterprise Edition Release 10.2.0.4.0.
Initilally the RAC to non RAC cloning were not supported using rapid clone for this.But from Oct 19 Oracle has certified the same.
Can anybody specify me the document which contain the step by step process for RAC to NON-RAC Cloning using Rapid Clone.I cant find this.
Regards,
Susmit

Hi;
Please check below previos thread:
Cloning RAC to non RAC
RAC -> NON RAC ebiz clone
Re: Clone Oracle Apps 11.5.10.2 RacDB to Non-RAC DB
Regard
Helios

Oracle10g RAC vs Oracle9i RAC with WebLogic

Hello, I am planning on installing Oracle RAC on Redhat's Linux AS 3.0, while BEA's WebLogic will the application server.
What would you choose as the back end, Oracle9i RAC or Oracle10g RAC and why ?
Also, what release/patch-level (sp ??) of Linux A.S should be used ?
EMC's storage disk arrays sould be used. Is anyone aware of any I/O issues between Linux AS and EMC disks ?
Thank you for your thoughts.
Regards,
Tom

Sun would not recommend using Oracle 10g RAC without Sun Cluster. Setup for that configuration would be found in the Sun Cluster Data Service for Oracle 10g RAC and the Oracle installation manuals.
The installation of Oracle Clusterware alone would be documented in Oracle's manuals. If you have any problems with that, you are better off asking Oracle.
Regards,
Tim
---

How to apply archivelogs from 2 node rac to non-rac

Is there any way to apply the archivelogs from 2 node RAC to sinlge node non-rac instance while migrating RAC to non-rac.
Could anyone clarify it?
-Shanlee

There's no "different way".
Each instance in RAC write's to it's own Redo Thread -- so each has it's own set of ArchiveLogs. In the log_archive_format specification %t is the thread identifier.
Oracle needs the ArchiveLogs from both Threads of the 2 node RAC. When you issue a RECOVER DATABASE, it applies them in the correct (interleaved) sequence.
What you have to do is to ensure that the ArchiveLogs of both threads are available on the new server.
Hemant K Chitale
Edited by: Hemant K Chitale on Jun 1, 2011 5:09 PM

Upgrade Oracle 10gR2 RAC to 11gR2 RAC

Hi Gurus,
I got a requirement to upgrade my existing environment from Oracle 10gR2 RAC to 11gR2 RAC. My environment details are as follows
Operating system RHEL 5.5
Cluster version 10.2.0.4
ASM version 10.2.0.4
Database version 10.2.0.4
Storage HP EVA (Multipathing)
Could any one please specify the links or documents to complete this task!
Thanks & Regards,
Venkat

HI!
In my practise we have hardware to move 10g -> 11g.
We upgrade our DB's -> install Grid 11g on new server, move DB 10g, Upgrade 10g -> 11g.
You should work on this topic's:
Oracle® Database Upgrade Guide 11g Release 2 (11.2)
NEW FEATURES 11gr2
Complete Checklist for Manual Upgrades to 11gR2
Oracle Recommended Patches
Oracle Clusterware - ASM - Database Version Compatibility
How to Download and Run Oracle's Database Pre-Upgrade Utility
Best Practices to Minimize Downtime During Upgrade
Things to Consider Before Upgrading to 11.2.0.2 Grid Infrastructure
Different Upgrade Methods For Upgrading Your Database
All in you hands!!!

Migrate Non-RAC(Standalone) to RAC

Hi,
Can anybody suggest me how to Migrate Non-RAC(Standalone) to RAC.
Thanks
ANUP

Hi Anup,
See this doc http://www.oracle.com/technology/pub/articles/chan_sing2rac_install.html
There are old threads in this forum about migration too.
Regards,
Rodrigo Mufalani

RAc 11gR2 to RAC Cloning

Hello,
Could you provide me the exact steps to do a RAC 11gR2 to RAC cloning as a part of a clusterware + RAC database rebuild from scratch?
Thank you

Hi there,
allow a little addition, please: the links point to the latest version of the documentation (thanks, Levi), which assumes 11.2.0.2.
I would recommend using 11.2.0.2, but if the customer insisits on 11.2.0.1, then be aware that the configuration wizard used in the documentation did not exist in 11.2.0.1. You will need a different sequence of step in this case. The easiest and best would therefore be to use 11.2.0.2 - the information was not given in the original request, hence I thought I would add this information here.
Hope it helps. Thanks,
Markus

RMAN cloning from RAC to Non-RAC

Hi Gurus,
I had successfully cloned my DB from RAC to Non-RAC environment via RMAN. Below was the configuration
RAC
- 2 nodes
- 11gR2 (Compatible 11.0.1.6 as per Application Requirement)
- ASM (2 diskgroups DATA and FRA)
- OS RHEL 6.3
Non - RAC
- 1 node
- Stand alone11gR2 (Compatible 11.0.1.6 as per Application Requirement)
- ASM (2 diskgroups DATA and FRA)
- OS RHEL 6.3
My approach was to clone DB and then change SID with nid utility. My understanding was that nid utility will also replace ASM file paths from CRAMPRD to CRAMSIT but that didnt happen.
So issue is when I am checking my file paths on CRAMSIT it still refelect CRAMPRD eg - +DATA1/CRAMPRD. Is there any way to rename this directory paths in ASM so that it should reflect my SID.
Regards,
Nikhil Mehta.

No, NID wouldn't change the ASM paths.
I presume that you did set the ORACLE_SID to CRAMSIT on the non-RAC server before the restore.
What you should have done is to set DB_UNIQUE_NAME='CRAMSIT' (even with DB_NAME='CRAMPRD') on the non-RAC server before the restore. Oracle would have used the DB_UNIQUE_NAME to set the ASM PAth (note that during the restore it would have shown "restoring to +DATA1/CRAMPRD" but would have actually been restoring to "+DATA1/CRAMSIT").
You will now have to use Oracle Support Note
How to rename/move a datafile in the same ASM diskgroup [ID 564993.1]
to rename the paths in ASM.
Hemant K Chitale

RAC Guard or RAC?

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