EPB and DBI on RAC with Dataguard

Hello all,
I was wondering if anyone has installed and configured EPB and DBI on a
- Apps 11.5.10.2,
- Oracle Server 10.1.0.4 instance on
- Red Hat AS 4,
- HP Proliant,
- 2 noded RAC cluster
- Dataguard (in physical mode) as a DR solution.
Please let me know if you were able to get this particular configuration up and running and what issues you ran into.
Thanks
Steve

Hi,
Im also keen to here of anyone with similar build for EPB and DBI Implementation ?
Regards,
TC

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Implementing 11gR2 RAC with dataguard

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I just need the order of steps to be followed to set up the environment.
1] Set up the Grid Infrsatructure for the 2 node RAC .
2] Create the database .
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Is the above order correct ? If not , let me know the correct order of steps that needs to be followed to setup 11gR2 RAC with dataguard.

Could any one provide the steps on how to setup 11gR2 two node RAC With Dataguard . Could the 11R2 Active database duplication can be used in setting up the standby ?This below document is one of best one, to configure two node standby for two node primary database,
http://www.oracle.com/technetwork/database/features/availability/maa-wp-10g-racprimaryracphysicalsta-131940.pdf
starting from 11gR2 you can use duplication from active database. also refer below note.
How to create physical standby database with 11g RMAN DUPLICATE FROM ACTIVE DATABASE [ID 747250.1]

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Hi,
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Thanks ...
So here is what I thought... suggest if something is not right...
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can I do this way ?
My only question is, even though I installed rac on node A and B, in step 5 and 6 I'm using only node A as if it is single instance. Is it possible ?
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Implemeting 11gR2 RAC with Data Guard

Hi ,
Could any one provide the steps on how to setup 11gR2 two node RAC With Dataguard . Could the 11R2 Active database duplication can be used in setting up the standby ?
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Hi Fiedi ,
Thanks for the reply .
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I am trying to store an XML file in a Clob type field of a DB table using TopLink 9.0.4.5 and Oracle 10g RAC and need some guidance about how to do it. I got some directions to start it with the Tip "How-To: Map Large Objects (LOBs) to Oracle Databases with OracleAS TopLink" but still need some more helps.
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Never mind ....... I had already figured it out .....

Install CRS and RAC with different users

I' m tring to install CRS and RAC with different users.
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My question are related to permission/own of voting and ocr file.
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Yes it is ... check out the RAC FAQ on metalink, and just as Chris metioned the users will need to have the oinstall group as their primary..
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Modified: 09-SEP-04 Ref #: ID-5769 "

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Hi all,
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---

What is dead locks with oracle and wht is race condition wrt oracle

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I only have a basic experience of RMAN on a training course and no experience of Data Guard.
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RAC with Dbnode1 and Dbnode2

I have RAC with Dbnode1 and Dbnode2 and my application submit job in Dbnode1 .job is running and Dbnode1 is down .
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1 App1 and App2 node /DBNode2 and DBNode1 node are running.
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995587 wrote:
I have RAC with Dbnode1 and Dbnode2 and my application submit job in Dbnode1 .job is running and Dbnode1 is down .
It possible running Job automatically move on the Dbnode2 .
1 App1 and App2 node /DBNode2 and DBNode1 node are running.
2 Application batch submit successfully from Appnod1/DBnode1 and DBNode1 goes down in middle of the batch.
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Client Failover Best Practices for Highly Available Oracle Databases: Oracle Database 11g Release 2
http://www.oracle.com/technetwork/database/features/availability/maa-wp-11gr2-client-failover-173305.pdf
Application Failover with Oracle Database 11g
http://www.oracle.com/technetwork/database/app-failover-oracle-database-11g-173323.pdf
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Transparent Application Failover in OCI
http://docs.oracle.com/cd/E14072_01/appdev.112/e10646.pdf

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I would like to build a 10gR2 2 node RAC with a SUN Fire V890 (8CPUs 1.8GHz UltraSPARC IV+) and a new SUN M5000 (8CPUs SPARC64).
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You can setup a cluster with different hardware architectures underlying to the cluster and you should not have any problem with the above configuration.

How does Oracle failsafe work with dataguard

Question: Till now we used two nodes with failsafe and a database server.
We need a solution for the following:
* location 1: the same as above.
* location 2: database server(standby) and maybe another instance(node).
Scenario: The production database at location 1 fails and needs to failover(dataguard?) to the standby db at location 2. The failsafe instances at location 1 still point to the production database(which is down).
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Thanx,
Pim

I was able to run a simple query with ora_* functions using 10g on Windows.
The Oracle OCI calls used by PHP's ora extension still exist in the Oracle 10g libraries
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-- cj

Streams with DataGuard design advice

I have two 10gR2 RAC installs with DataGuard physical copy mode. We will call the main system A and the standby system B. I have a third 10gR2 RAC install with two-way Streams Replication to system A. We will call this RAC system C.
When I have a failure scenario with system A, planned or unplanned, I need for system C's Streams Replication to start replicating with system B. When the system A is available again I need for system C to start replicating with system A again.
I am sure this is possible, and I am not the only one that wants to do something like this, but how? What are the pitfals?
Any advice on personal experience with this would be greatly appreciated!

Nice concept and I can only applaud to its ambitions.
+"I am sure this is possible, and I am not the only one that wants to do something like this".+
I would like to share your confidence, but i am afraid there are so many pitfalls than success will depends on how much pain you and you hierarchy can cope with.
Some thoughts:
Unless your dataguard is Synchronous, at the very moment where A fails, there will be missing TXN in C,
which may have been applied in B as Streams is quite fast. This alone tells us that a forced switch cannot
be guarantee consistent : You will have errors and some nasty one such as sequence numbers consumed
on A (or B) just before the crash, already replicated to B (or A)but never shipped to C. Upon awake C will
re-emit values already known on B (dup key on index?)
I hope you don't sell airplane ticket for in such a case you can sell some seats twice.
Does C have to appear as another A or is it allowed to have a different DB_NAME? (How will you set C in B?
is C another A which retakes A name or is C a distinct source).if C must have the same DB_NAME, the global
name must be the same. Your TNS construction will be have to cope with 2 identical TNS entry in your network
referring to 2 different hosts and DB. Possible with cascade lines at (ADDRESSES= ... , but to be tested.
If C is another A then C must have the same DB_name as LCR do have their origin DB name into them.
If C has a distinct name from A it must have its on apply process, not a problem it will be idle while A is alive,
but also a capture that capture nothing while A is alive, for it is Capture site who is supposed to send the ticks
to advance counters on B. Since C will be down in normal time, you will have to emulate this feature periodically
reseting the first_scn manually for this standby capture - you can jump archives providing you jump to another
archive with built in data dictionary - or accept to create a capture on B only when C wakes up. The best would
be to consider C as a copy of B (multi-master DML+DDL?) and re-instantiate tables without transferring any data
the apply and capture on C and B to whatever SCN is found to be max on both sites when C wakes up.
All this is possible, with lot of fun and hard work.
As of the return of the Jedi, I mean A after its recovered from its crash you did not tell us if the re-sync C-->A
is hot or cold. Cold is trivial but If it is hot, it can be done configuring a downstream capture from C to A with
the init SCN set to around the crash and re-load all archives produced on C. But then C and A must have a different
DB_name or maybe setting a different TAG will be enough, to be tested. Also there will be the critical switch
the multi-master replication C<-->B to A<-->B. This alone is a master piece of re-sync tables.
In all cases, I wish you a happy and great project and eager to hear about it.
Last, there was a PDF describing how to deal with dataguard switch with a DB using streams, but it is of little help,
for it assumes that the switch is gentle : no SCN missing. did not found it but maybe somebody can point a link to it.
Regards,
Bernard Polarski

Best practice for oracle 10.2 RAC with ASM

Did any one tried/installed Oracle 10.2 RAC with ASM and CRS ?
What is the best practice?
1. separate home for CRS, ASM and Oracle Database?
2. separate home for CRS and same home for ASM and Oracle Darabase?
we set up the test environment with separate CRS, ASM and Oracle database homes, but we have tons of issues with the listener, spfile and tnsnames.ora files. So, seeking advise from the gurus who implimeted/tested the same ?

I am getting ready to install the 10gR2 database software (10gR2 Clusterware was just installed ) and I want to have a home for ASM and another for database as you suggest. I have been told that 10gR2 was to have a smaller set of binaries that can be used for the ASM home ... but I am not sure how I go about installing it. The first look at the installer does not seem to make it obvious...Is it a custom build option?

Problem with DataGuard

Hello.
Please help me with problem. I install OEM with DataGuard on one computer and install database and agent on other. When I install this programs I can manage from OEM other computer on what install database. After I try create standby database for my database from OEM but it answered me "Cannot determine primary host architecture". What I need do for fix this problem? I can create standby database for base on one computer but I can't create standby for database on other computer.

Can you be more specific ?
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EPB and DBI on RAC with Dataguard

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