RMAN support of OPS/RAC and ISD's

Can some one point me in the right direction for any white papers, or documentation, on RMAN and its current support of OPS/RAC and/or Intelligent Storage Devices (ISD). I'm trying to do a comparison of RMAN against other third party backup and recovery software and need to find out as much as I can of RMAN support of these architectures. Thanks!

The closest documention I have of RMAN and OPS/RAC is the Oracle Documentation. Take a look in the RAC ADMIN doc. And I talked a little bit about it in an OpenWorld paper from last year. You can find the paper @
http://otn.oracle.com/deploy/availability/pdf/BR_OOW01_213WP.pdf
Bottom line, RMAN supports the clustered environments the same as single instance databases. The rub is the archive log destinations. This is discussed in the RAC documentation.
Thanks, Tammy

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OPS/RAC Vs Raw Device/File System

Hello, firts to all, I want to know what is OPS/RAC and Raw Device/File System.
And then know the diferens between both.
I apologize for my english.
Thanks.

OPS is Oracle parallel server was available up to Oracle 8i and RAC is Real application cluster is available from Oracle 9i.
Raw device is just presenting the disk to server and using it. File system is presenting disk more transparent and managable form using OS or third party software.
You need to refer respective documents to know them in detail.
Ashok

RAC and Grid Computing

Hi,
I am trying to understand the connection between RAC and Grid Computing.
In RAC, we can have multiple instance of the same physical database and if all these instances are running on n* separate machines then we have n+ set of processes to take care of computation.
Isn't this summarise the Grid computing as well or is it something entirely different. Please share.
Thanks in Advance

Hi,
Billy already answered well.
Litte Note:
Timeline of Oracle Databases:
1992: Oracle version 7 appeared with support for referential integrity, stored procedures and triggers.
1997: Oracle Corporation released version 8, which supported object-oriented development and multimedia applications.
1999: The release of Oracle8i aimed to provide a database inter-operating better with the Internet (the i in the name stands for "Internet"). The Oracle8i database incorporated a native Java virtual machine (Oracle JVM, aka "Aurora").
2001: Oracle9i went into release with 400 new features, including the ability to read and write XML documents. 9i also provided an option for Oracle RAC, or "Real Application Clusters", a computer-cluster database, as a replacement for the Oracle Parallel Server (OPS) option.
2003: Oracle Corporation released Oracle Database 10g, which supported regular expressions. (The g stands for "grid"; emphasizing a marketing thrust of presenting 10g as "grid computing ready".)
2005: Oracle Database 10.2.0.1—aka Oracle Database 10g Release 2 (10gR2)—appeared.
2007: Oracle Corporation released Oracle Database 11g for Linux and for Microsoft Windows.
Future (*Just a guess*): Oracle Database will release version 12c. (The c stands for "cloud"; emphasizing a marketing thrust of presenting 12c as "Cloud Computing ready".)
Oracle has released products with "C" of the "Cloud" (e.g Oracle Enterprise Manager 12c)
http://en.wikipedia.org/wiki/Oracle_Database
Regards,
Levi Pereira

Cloning 11i non split to split configuration with RAC and ASM

Hello Hussein,
I just want to ask some ideas on what is the best way to clone our UAT/DEV environment to our PROD environment.
Right now no RAC and ASM setup for the source system still 9.2.0.5 but the plan is to convert to ASM + 10g RAC.
Can you please let me know on what is the best way to setup PROD out of our UAT environment?
Here's my options:
1. Install a fresh prod system
2. Convert source system to ASM + RAC before cloning to target - setup as below:
(Source)
APPS server - 32bit
DB server (2 node RAC + ASM) - 32bit
(Target)
APPS server - 32bit
DB server (2 node RAC + ASM) - 64bit
3. Clone existing target system (non RAC and non ASM)
copy source APPL directories to target
Install 64 bit Oracle 10g to the target system
clone/convert database source (9i 32bit) to database targer (10g 64 bit) using RMAN.
Install clusterware 11gR2
Convert database to RAC
Can you please let me know on what is the best approach to do this? For fresh install it will take some time to apply the current patch level and applying other patches.
For Option 2, seems a bit complicated to do 32bit - 64 bit cloning on RAC. Appreciated if you can provide doc id for this.
For Option 3, not sure how smooth the conversion from 32bit to 64bit.
Appreciate your insights on this.
Regards,
jeffrey

Hi Jeffrey,
Since you are on 9.2.0.5, I assume you are running Oracle Apps 11i and not R12.
1. Install a fresh prod systemThis option requires applying all patches (as you mentioned above) plus you will have to convert to ASM/RAC on the source/target instance. I would not recommend this approach since would require extra work/time.
2. Convert source system to ASM + RAC before cloning to target - setup as below:
(Source)
APPS server - 32bit
DB server (2 node RAC + ASM) - 32bit
(Target)
APPS server - 32bit
DB server (2 node RAC + ASM) - 64bitWhat are the source and target database version?
As per (Certified RAC Scenarios for E-Business Suite Cloning [ID 783188.1]) this is supported by Rapid Clone. So, in this case you need to convert the source instance to RAC and migrate to ASM then use Rapid Clone to clone the application/database.
Cloning Oracle Applications Release 11i with Rapid Clone [ID 230672.1] -- 6. Cloning a RAC System
You will have to convert the target database then from 32-bit to 64-bit.
3. Clone existing target system (non RAC and non ASM)
copy source APPL directories to target
Install 64 bit Oracle 10g to the target system
clone/convert database source (9i 32bit) to database targer (10g 64 bit) using RMAN.
Install clusterware 11gR2
Convert database to RAC Here you will have to convert to RAC/ASM on both the source/target instances -- You are eliminating the patches part in Option 1, but again extra work need to be done to convert the database from 32-bit to 64-bit on the target instance + convert to RAC and migrate to ASM (on both instances).
Based on the above, I would recommend and suggest you go with Option 2.
Thanks,
Hussein

Difference between RAC and MySQL Cluster !

Difference between RAC and MySQL Cluster
Please write me in well explanation , with examples , needed useful link and all other stuffs.
(1)Italian dealers/distributors for MySQL
(2)Difference between RAC and MySQL Cluster
(3)Pricing about MySQL and PostgreSQL
(4)How and which type / Way to deliver support by MySQL
(5)Security features about MySQL Vs Oracle
(6)Management Console
MySQL Vs Oracle
Thanks in advance !
MySQL Cluster

Ha ha, most amusing.
I suggest you try googling for answers to these things. This is a site dedicated to the Oracle database, the questions are answered by volunteers (not Oracle employees) and we are primarily geeks rather than marketing droids. If you have a specific Oracle question please feel free to post anytime.
Thank you for your interest.
Arrivederci, APC

Problems with RAC and XA: Fallback

Hello,
we are seing problems with RAC and XA (Tuxedo 11, DB 11.2), specifically encountering "ORA-24798: cannot resume the distributed transaction branch on another instance".
The first scenario relates to fallback after a RAC node failure. There are two servers, S1 and S2. S1 makes an ATMI call to S2. Both servers are in the same Tuxedo group, using TMS_ORA. RAC is set up for failover (BASIC), no load balancing.
The sequence is:
- S1 and S2 are connected to the same RAC node n1. All is well.
- RAC node n1 fails. S1, S2 and the TMS_ORA all fail over to RAC node n2. After the failover has happened, all is well.
- RAC node n1 recovers. All is still well (as there is no automatic fallback).
- S1 (or S2) is restarted (either intentionally or because of a crash). Since n1 is up again, S1 connects to n1. Now we get ORA-24798. Permanently.
S1 is connected to n1 and S2 is connected to n2. Since both are in the same group, both use the same XA transaction branch. When called, S2 attempts to JOIN the transaction branch that S1 started. But the DB (11.2) does not allow the same branch to span more than one node. Hence the ORA-24798.
This seems to be a severe limitation in the combination of Tuxedo, XA and RAC. It basically means we still have to use DTP services, even with Tuxedo 11 and DB 11.2. Or are we missing something?
We could put S1 and S2 into different groups, but that seems to be inefficient, and not practical for a real application (10s of servers).
I am extrapolating from this that RAC load balancing would also not work, as S1 and S2 could be connected to different RAC nodes.
Roger

Roger,
When using an external transaction manager such as Tuxedo you should still declare Oracle services as DTP services when using Oracle Database 11g. The Tuxedo documentation is not clear about this. The relevant 11gR2 RAC documentation is at http://download.oracle.com/docs/cd/E11882_01/rac.112/e16795/hafeats.htm and states
"An XA transaction can span Oracle RAC instances by default, allowing any application that uses the Oracle XA library to take full advantage of the Oracle RAC environment to enhance the availability and scalability of the application.
"GTXn background processes support global (XA) transactions in an Oracle RAC environment. The GLOBAL_TXN_PROCESSES initialization parameter, which is set to 1 by default, specifies the initial number of GTXn background processes for each Oracle RAC instance. Use the default value for this parameter clusterwide to allow distributed transactions to span multiple Oracle RAC instances. Using the default value allows the units of work performed across these Oracle RAC instances to share resources and act as a single transaction (that is, the units of work are tightly coupled). It also allows 2PC requests to be sent to any node in the cluster.
"Before Release 11.1, the way to achieve tight coupling in Oracle RAC was to use Distributed Transaction Processing (DTP) services, that is, services whose cardinality (one) ensured that all tightly-coupled branches landed on the same instance—regardless of whether load balancing was enabled. Tightly coupled XA transactions no longer require the special type of singleton services to be deployed on Oracle RAC databases if the XA application does not join or resume XA transaction branches. XA transactions are transparently supported on Oracle RAC databases with any type of service configuration.
A"n external transaction manager, such as Oracle Services for Microsoft Transaction Server (OraMTS), coordinates DTP/XA transactions. However, an internal Oracle transaction manager coordinates distributed SQL transactions. Both DTP/XA and distributed SQL transactions must use the DTP service in Oracle RAC."
This issue came up earlier this year in another newsgroup thread at https://forums.oracle.com/forums/thread.jspa?threadID=2165803
Regards,
Ed

FDM is not supported on Oracle RAC? Why not?

[http://download.oracle.com/docs/cd/E12825_01/epm.111/fdm_11113_readme.pdf|http://download.oracle.com/docs/cd/E12825_01/epm.111/fdm_11113_readme.pdf] We are in the process of implementing Oracle Hyperion Financial Data Quality Management (FDM) version 11.1.1.3 as part of our Hyperion Essbase BI environment. I read over the documentation prior to building the databases, but apparently I missed an important bit of information. It seems that FDM is not supported on Oracle RAC. I just noticed this under in the "Known Issues" section of the FDM 11.1.1.3 release notes, and that was only one sentence. The release notes do not explain why this is the case.
- Does anyone know why FDM release 11.1.1.3 is not supported for Oracle RAC?
- Has this always been the case?
- Can a single node database, running on an Oracle 10.2.0.4 two node RAC environment, be used instead of building a separate, stand-alone database?
Link to readme document. The reference to RAC support, or non-support, is on page 6:
http://download.oracle.com/docs/cd/E12825_01/epm.111/fdm_11113_readme.pdf

Hi Daan,
I belive we all shoud consider http://forums.oracle.com/forums/ann.jspa?annID=939
I get upset to see people on this forum who answer the questions like *'use google'* or *'let me google it for you'* or *'use this forum filter'*
I belive it is better to help them answer a better question or if you don't like the question ignore it.
Hi user10511107,
I belive your problem is with Windows not with BI, BI just can't get windows version,
If you are on right version of windows go to MSDN and search for your error and how to fix it
ERROR: Provider Load Failure.
Regards
Nicolae

Difference between oracle 9i Rac and 10g Rac

Friends -
Could you please list out what are the main differences between oracle 9i Rac and oracle 10g Rac
Appreciate your support on this
Regards
satish

hi
check the new features document of 10g RAC
http://download.oracle.com/docs/cd/B19306_01/rac.102/b14197/whatsnew.htm#sthref6
HTH

Database replication between Oracle RAC and Oracle Standalone DB in 9i

Hi,
We have currently 4 node RAC environment and Oracle RAC implementation with 4 Oracle instances. We want to move the one instance and make it Standalone with Oracle database due to availability issue. Thus we will remain with 3 nodes on the RAC database and one Standalone database. We want to implement Oracle replication on this solution, where partial database of RAC environment needs to be replicated to Standalone node.
We will have Oracle 9i database server for both RAC and Standalone machine.
The partial data that we are looking for replication are of size 25GB. Some of questions we have:
1. Is there any other replication mechanism apart from Materilzed view for this solution?
2. Is it feasible to sychronize around 25GB data between servers?
3. What can be estimated time for refresh or Synchronization?
The methods that we are evaluating currently for this replication are:
1. Multi Master replication
2. Oracle 9i Datagaurd.
Please let me know if we need to look for some other methods of replication also.
Thanks in advance for help.

ManojMac wrote:
The partial data that we are looking for replication are of size 25GB. Some of questions we have:
1. Is there any other replication mechanism apart from Materilzed view for this solution?Streams is another option
2. Is it feasible to sychronize around 25GB data between servers?Sure. Depending on the rate of change, your latency requirements, whether the standalone database has the horsepower to apply all the changes generated by to other three nodes, etc.
3. What can be estimated time for refresh or Synchronization?Depends on the architecture, the network connection, whether you are doing incremental refreshes, etc. And it depends on what time you're measuring-- you might be measuring the latency between the RAC cluster and the standalone database, you might be measuring the time it takes to incrementally refresh a single materailized view when there have been no changes, you might be measuring the time it takes to do a complete refresh of an entire refresh group, pulling 25 GB of data over the network.
The methods that we are evaluating currently for this replication are:
1. Multi Master replication
2. Oracle 9i Datagaurd.DataGuard is not an option if you only want to replicate a subset of the data. The two realistic options are materialized views and Streams. Are you anticipating that you will be making changes on both nodes? If not, you can use simple materialized views rather than multi-master replication.
Since 9.2 is not longer covered by Premier Support, are you planning to upgrade to a supported version in the near future? In particular, Streams works a lot better in later versions of the database.
Justin

Database migration from non rac and non asm to RAC database with ASM

HI,
i have requirement to import one database ( db1) which running one node with out ASM and with out RAC , now i want to import that database with rman backup to another database ( db2) which running on different server with 3 node RAC and ASM ( disk group +DATA ) , can you please provide me the steps how i can migrate.? ( i have created db2 with dbca with RAC).
regards,
sri

Sri,
This could be done multiple ways. Simplest for you is to use DBCA:
http://download.oracle.com/docs/cd/B28359_01/install.111/b28264/cvrt2rac.htm

Infotype 77 changes to reflect new race and ethnicity categories

To incorporate the new race and ethnicity categories SAP note 435204 needs us to implement support pack SAPKE47063 (Release 470). However we are currently on SAP KE47060 Human Resources and NOT ready to apply SAPKE47063, is there any way we could implement the new race and ethnicity categories by applying some other oss notes.
Thanking you in advance.

Thank you for your feedback.
The new Federal Changes have come up with a new field called Ethnicity in addition to field call Ethnic Origin. The config allows us only to update the Ethnic Origin. In the OSS note 435204 they talk about updating this Federal requirement using the support pack SAPKE47063 but we are currently on SAP KE47060.
Thanks
Pratap

RMAN backup in ORACLE RAC database

Hi there,
We are using RMAN backup strategy for taking backups from one node(eg.node1).Database is RAC database, version 9.2.3. and OS is Solaris 5.10.
this is the configuration which we use, as follows:
Connecting to Prod.Database using catalog database.
rman catalog=rman/rman@CATDB target=sys/oracle@PRODDB(node 2).
RMAN> show all;
RMAN configuration parameters are:
CONFIGURE RETENTION POLICY TO REDUNDANCY 30;
CONFIGURE BACKUP OPTIMIZATION ON;
CONFIGURE DEFAULT DEVICE TYPE TO DISK; # default
CONFIGURE CONTROLFILE AUTOBACKUP ON;
CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO '/rmanback/_%F';
CONFIGURE DEVICE TYPE DISK PARALLELISM 5;
CONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default
CONFIGURE ARCHIVELOG BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default
CONFIGURE CHANNEL DEVICE TYPE DISK FORMAT '/rmanback/CMWPROD_%s.bak';
CONFIGURE CHANNEL 2 DEVICE TYPE DISK CONNECT 'SYS/oracle@PRODDB(node2)';
CONFIGURE MAXSETSIZE TO 7 G;
CONFIGURE SNAPSHOT CONTROLFILE NAME TO '/oracle/9.2.3/dbs/snapcf_CMWPROD1.f';
As the above config shows RMAN is connecting to PROD DB (node 2). But we need to take backups (datafiles and as well as archive logs) from two nodes (i.e from node 1 and as well as node 2).
Is there any possibility for taking backups from two nodes?
Thanks,
Balu.

Duplicate thread
RMAN configuration in ORACLE RAC database
Khurram

Funtion of cluster software on OPS(RAC)?

I Want to Know the function or reason of need to use cluster software on OPS(RAC)
As I Know, if I use oracle with HA Architecture,
It's true that I must use cluster software to get following function
1.health check
2.IP and resource take over...etc
But In parallel db environment,
Because there is TAF(tnsnames.ora) Function, There is no need to instance takeover.
Is it true?
If it is true, Cluster software's software has no need to ip take over and
because database is shared by multinode, there is no need to volume take over.
(whether using raw device or cluster file system)
Summary of what I want to know.
===============================
Q1)the reason that cluster software need on ops(rac)
Q2)is there need to take over instance in ops(rac)?
if it need, what is the case?
Q3)the difference of cluster software between HA enviroment and RAC(OPS) environment.
Q4)is there any function that don't need with ops ,but need when used with HA environment?
Q5)if we use cluster file system solution than have buffer cache manage fuction
(sync for consistency) on two node without parallel server option,
is there any problem on processing same database?
if any, what is the problem?

Summary of what I want to know.
===============================
Q1)the reason that cluster software need on ops(rac)
>
The cluster software is required to facilitate internode communication between nodes in the cluster through the cluster interconnect devices. Remember, 9i RAC does not use buffer pinging for block passing it utilizes cache fusion
Q2)is there need to take over instance in ops(rac)?
if it need, what is the case?
>
sorry I don't understand the question.
Q3)the difference of cluster software between HA enviroment and RAC(OPS) environment.
>
This is dependant on the OS/Clustering S/W you are using. For instance, 9i RAC on Windows 2000 requires that you do not install M$ clustering at all and use the clustering tools provided by Oracle. On the other hand, 9i RAC onCompaq Tru 64 Unix and Open VMS rely on the native Clustering of these OS's.
Q4)is there any function that don't need with ops ,but need when used with HA environment?
Q5)if we use cluster file system solution than have buffer cache manage fuction
(sync for consistency) on two node without parallel server option,
is there any problem on processing same database?
if any, what is the problem?
>
Technically, you can use Oracle in a cluster without 9i RAC under the following conditions:
You use a clustered file system, or RAW Devices.
Only one Instance per node can access the database at any time. In other words it could be used for failover from one node to the other, but it can't be used for scaling.
For more detailed info, you should read all of the relevent Oracle white papers on 9i RAC, and if you can find them, the release notes for 9i RAC on your OS.

Clone multi-node RAC and ASM to single node

Hi everyone.
I need clone system with 3 application server and 2 oracle database RAC and ASM to single-node. The operating system is RHEL 5.
I see some metalink notes, but we can't found nothing. I find notes with multi-node to single-node, but nothing with RAC to non-RAC.
The eBS version is 11.5.10.2 and database version is 10.2.0.3
Is possible this clone?
Thanks very much.

Hi User;
Please follow below and see its helpful:
EBS R12 with RAC and non-RAC
Re: RAC to single instance ebs R12
Re: Clone Oracle Apps 11.5.10.2 RacDB to Non-RAC DB
Re: CLONING R12 RAC to NON RAC CLONING giving error RMAN-05517 temporary file
[b]Migrating the DB-Tier (DB and CM) to Two node non RAC cluster[/b]
Also check:
http://www.oracle.com/technology/pub/articles/chan_sing2rac_install.html
Regard
Helios

New implementation - Client having issues with RAC and Grid on Windows

Client is starting a new implmenetation on Windows 2008 R1, Oracle 11.1.0.7. They have a 3 node RAC and Grid Control. They are having a number of issues and support is working through those issues. They are asking if there are clients on RAC and Grid on Windows. The Wiki shows a few customers on Windows, but was hoping to get some feedback. Tks.

There are lots of customer applications that are based on Windows RAC. And as mentioned above, it is very well supported by Oracle.
However, because of the security vulnerabilities of Windows, I've observed that most of the financial institutions and listed companies opt for unix based servers for all high profile applications and run only low to medium risk application on Windows.
Regarding maintanence issues, I guess it's going to be pretty much the same; there shall always be lots of bugs, lots of patches and updates just like an yother software; doesn't really matter if you are on Unix or Windows systems. As long as you purchase support, it's all good.
It's pretty much same concern regarding Grid Control on windows.
Cheers.

RMAN support of OPS/RAC and ISD's

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