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

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hi,
we have several utl_file and external table applications running on 10.2 single node veritas file system. and we want to migrate to 3 node RAC ASM environment. what is the best practices in order to succeed this migration during this migration. thanks.

1. Patch to 10.2.0.3 or 10.2.0.4 if not already there.
2. Dump Veritas from any future consideration.
3. Build and validate the new RAC environment and then plug in your data using transportable tablespaces.
Do not expect the first part of step 3 to work perfectly the first time if you do not have experience building RAC clusters.
This means have appropriate hardware in place for perfecting your skills.
Be sure, too, that you are not trying to do this with blade or 1U servers. You need a minimum of 2U servers to be able
to plug in sufficient hardware to have redundant paths to storage and for cache fusion and public access (a minimum of 6 ports).
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for RAC.

RAC and ASM with geographically seperated disks

We are planning to use RAC and ASM with four nodes. The two nodes will be at one location and another two nodes at different location. The ASM disks also will be available locally. Is it possible to configure ASM with geographycally serepared disks.
We are thinking of two RAC and ASM setups with two nodes each and streams replication between the RACs.
I want to know what is the best method to implement. Is it RAC with four nodes OR two RACs with two nodes each and streams replication between the RACs.

Apart from the latency issue, which has been mentioned by others, you also need to mirror your disks between the two sites and be very careful about split brain scenarios under node or site crashes.
You need to mirror the disks between the sites in case one site crashes completely and loses all network access. The only way the second site can carry on is if it has access to all the data disks, and the cluster control disks (terms vary for this, such as quorum or voting disk). If you do not mirror you simply do not have a resilient design. Resilience is about eliminating all single points of failures, which means duplicating everything i.e. mirroring.
And mirroring between two remote sites adds more volume to the data traffic between the two sites. And it would need to be synchronous rather than asynchronous to guarantee no data loss. And your commits for each transaction would be limited by the round trip time to write to the remote site and get the acknowledgement back.
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I don't think a 4 node RAC environment split across geographical distances is really viable, except under small transaction volumes, and where response time (transaction time) is not critical. If you have high volumes and need fast transactions then you need to only use local RAC configurations, and replicate between the two sites asynchronously. DataGuard is easier, but you need to decide if you need Streams and how to make it work for you.
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We need to clone a 11.1.0.7 environment with single node db plus asm storage used.
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9233598 wrote:
We need to clone a 11.1.0.7 environment with single node db plus asm storage used.
I googled everywhere , and a lot notes on ASM with RAC cluster clone provided but no document for ASM with single node.
Please help.
Thanks
9233598 wrote:
We need to clone a 11.1.0.7 environment with single node db plus asm storage used.
I googled everywhere , and a lot notes on ASM with RAC cluster clone provided but no document for ASM with single node.
Please help.
Thanks
RMAN> DUPLICATE DATABASE

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Hi,
We are planning to convert single node local/ordinary file system 11.2.0.3 database to 2 node RAC with ASM.
Please help me in creating the roadmap for the same.
e.g
1. Create the shared raw file system
2. Create diskgroup for ASM
3.. Convert the local file system to ASM first
etc, etc
This is the first big task hence need expert guidance.

Please refer to:
Using Oracle 11g Release 2 Real Application Clusters with Oracle E-Business Suite Release 12 (Doc ID 823587.1)
Oracle E-Business Suite Release 12 High Availability Documentation Roadmap (Doc ID 1072636.1)
Thanks,
Hussein

How to Create Manual Standby for a Oracle 11g RAC with ASM to Single Instan

Hi All,
I have a task to configure a Single Instance Standby Database with ASM for 2-node Primary RAC+ASM database.
Version using : 11.1.0.6 Oracle 11g --- *" STANDARD EDITION "* Please note datagaurd will not be supported in standard edition.
Primary database - 2 -Node RAC using ASM storage (All datafiles, redologs, controfile and archive logs)
Need to setup a single instance standby database manually and than using scripts to transfer the archive logs from primary server to standby server to do recovery time to time.
Please let me know if there are any configuration document(s) which can help me to set the manual standby? or need your kind help to give your valuable ideas how to go in above situation.
Thanks in advance

Niall Litchfield wrote:
El DBA wrote:
Well if the archive logs are stored in ASM on the primary nodes, you almost definitely want to be using RMAN to access them. Then to transfer between primary and standby there are many options, this is essentially the step that Data Guard takes care of - so if you (and I) are running Standard Edition, this is the part to "worry" about.
I'm not really sure what you mean by this:
As in standard edition the archive destination will be on ASMI don't think the Edition of Oracle (Standard or Enterprise) dictates where and how you store your archive logs, but it's possible I've misunderstood what you mean...SE dictates that database storage for RAC will be ASM, including archive log files. Anything else is not officially supported. I haven't tested but it may be that you can use LOG_ARCHIVE_DUPLEX_DEST to specify a local filesystem for archive log files as well.
If that doesn't work you'll have to script rman "backup as copy" jobs regularly and then transport the results of that.
Niall Litchfield
http://www.orawin.info/
By the way, it seems Robert has been pretty helpful, it's polite to give him some points dude. And since this is your thread, not mine, give him a "helpful" from me too :p
El DBA
Incidentally if you are forced down the RMAN backup as copy route then this will likely throw your current backup retention strategy somewhat, you'll need to think carefully about when an archivelog can be deleted following backup, how many times it might be backed up and so on. I do understand, and have argued for, the use of SE RAC. I also understand and have argued for and implemented manually managed standby a number of times. However by the time your primary database is a RAC instance and you need a standby for DR etc then you really have to look very seriously at whether Standard Edition is still the right investment or not. You will be spending a lot of DBA time managing and troubleshooting this, and you will find that it is less reliable than the off the shelf solution. I suspect that you are very close to the point where an EE installation becomes a worthwhile investment here.
Niall Litchfield
http://www.orawin.info/

Install 10gr2 ASM on single node, need clusterware installe first?

Install 10gr2 ASM on single node, Do I need install clusterware first?
When I install clusterware on single node, it shows " the specified nodes are not clusterable"
Thanks.

ASM and clusterware are two separate things. Clusterware is required only if you are setting up a RAC environment, is this your case? If you are just planning to use ASM then proceed with the RDBMS (database disk) install and use the DBCA to perform ASM configuration. It is assumed you have the raw devices ready to setup the ASM instance. Once the ASM instance is ready you can create the database to use the ASM disks.
~ Madrid
http://hrivera99.blogspot.com/

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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

Solaris 10 and Hitachi LUN mapping with Oracle 10g RAC and ASM?

Hi all,
I am working on an Oracle 10g RAC and ASM installation with Sun E6900 servers attached to a Hitachi SAN for shared storage with Sun Solaris 10 as the server OS. We are using Oracle 10g Release 2 (10.2.0.3) RAC clusterware
for the clustering software and raw devices for shared storage and Veritas VxFs 4.1 filesystem.
My question is this:
How do I map the raw devices and LUNs on the Hitachi SAN to Solaris 10 OS and Oracle 10g RAC ASM?
I am aware that with an Oracle 10g RAC and ASM instance, one needs to configure the ASM instance initialization parameter file to set the asm_diskstring setting to recognize the LUNs that are presented to the host.
I know that Sun Solaris 10 uses /dev/rdsk/CwTxDySz naming convention at the OS level for disks. However, how would I map this to Oracle 10g ASM settings?
I cannot find this critical piece of information ANYWHERE!!!!
Thanks for your help!

You don't seem to state categorically that you are using Solaris Cluster, so I'll assume it since this is mainly a forum about Solaris Cluster (and IMHO, Solaris Cluster with Clusterware is better than Clusterware on its own).
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Tim
---

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Short story:
I need to format the disk storage used by a two nodes RAC with ASM.
How can I have the database working the new disk storage.
Long story:
We decided to change the external disk storage formatting from RAID 5 to RAID 10.
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Thanks alot for your answer.
1) There is more trouble: I also have the Voting disk and the OCR on the same (and only) SAN storage. Do you know about steps to backup/restore and/or recreate these?
As I said I have a NFS file system available with plenty of space.
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Hi,
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We have a new Oracle Apps R12 instalaltion with 4 node RAC and 4 Apps nodes with load balancing and external web tier being done by an outside firm. We are assigned the responsibility of checking that everything has been configured properly both on the RAC side and Apps side. I haven't worked on RAC earlier. Please let me know what all need to be checked before approving the install done by the outside firm.
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Please check below metalink notes
RAC Assurance Support Team: RAC and Oracle Clusterware Starter Kit and Best Practices (Generic) [ID 810394.1]
Using Oracle 10g Release 2 Real Application Clusters and Automatic Storage Management with Oracle E-Business Suite Release 12 [ID 388577.1]
Using Oracle 11g Release 2 Real Application Clusters with Oracle E-Business Suite Release 12 [ID 823587.1]
Oracle E-Business Suite and Oracle Real Application Clusters Documentation Roadmap [ID 745759.1]
745759.1 Oracle E-Business Suite and Oracle Real Application Clusters Documentation Roadmap
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387859.1 Using AutoConfig to Manage System Configurations with Oracle E-Business Suite Release 12
406982.1 Cloning Oracle Applications Release 12 with Rapid Clone
240575.1 RAC on Linux Best Practices
265633.1 Automatic Storage Management Technical Best Practices
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note 380489.1 Using Load-Balancers with Oracle E-Business Suite Release 12
note 727171.1 Implementing Load Balancing On Oracle E-Business Suite - Documentation For Specific Load Balancer Hardware
note 601694.1 How To Check Session Persistence On BigIP F5 And Cisco Ace Load Balancer Appliances
note 603325.1 Using Cisco ACE Series Application Control Engine with Oracle E-Business Suite Release 12
Installation R12
note 761564.1 Oracle Applications Installation and Upgrade Notes Release 12 (12.1.1) for Linux x86
note 402310.1 Oracle Applications Installation and Upgrade notes Release 12 (12.0) for Linux (32-bit)
note 559518.1 Cloning Oracle E-Business Suite Release 12 RAC-Enabled Systems with Rapid Clone
note 735276.1 Interoperability notes E-Business Suite R12 with Oracle Database 11gR1
Shared Applications Confiugurations:
note 380483.1 Oracle E-Business Suite Release 12 Additional Configuration and Deployment Options
note 384248.1 Sharing The Application Tier File System in Oracle E-Business Suite Release 12
Edited by: Amigo on Dec 20, 2010 9:58 AM

Question about RAC and ASM

Hi,
We are thinking about build RAC using ASM for OEM database. It'll have two nodes, oracle 10g and Hitachi san with solaris ( or linux ). I've few questions about RAC and ASM.
1) Do I need to have ASM instance running on each node ? ( most likely yes... but want to make sure )
2) can I share oracle_home between ASM instance and database instance ? what is the best choice ?
3) I'm planning to use shared disks for all files, all databases.... what are the pros/cons ?
4) what should be the installation procedure ? Meaning, first create ASM instance on each node, then install cluster software, build RAC databases...... can someone explain..
5) I believe RMAN is the only option for backup since I'm using ASM, correct ?
I'm a newbie to RAC and ASM..
Thanks,

user4866039 wrote:
1) Do I need to have ASM instance running on each node ? ( most likely yes... but want to make sure )yes.
2) can I share oracle_home between ASM instance and database instance ? what is the best choice ?in 10g you can, in 11gr2 you cannot. and it might be better to seperate them because it will give you more flexibility with patching.
3) I'm planning to use shared disks for all files, all databases.... what are the pros/cons ?if you share your oracle_home you won't be able to do rolling updates. so i recommend to keep oracle_homes local.
4) what should be the installation procedure ? Meaning, first create ASM instance on each node, then install cluster software, build RAC databases...... can someone explain..follow the install guide for your respective version. for 10g you'd install clusterware first, then asm and database is last.
5) I believe RMAN is the only option for backup since I'm using ASM, correct ?pretty much. you could stop your database and dump the raw devices or use asmcmd/asmftp but rman is definitely the best choice
Bjoern

CONVERTING TWO NODE RAC ON WINDOWS TO SINGLE INSTANCE

I got question about a two node RAC on Windows.
One of our vendors is hosting our oracle enviroment and we are planning to bring in the datacenter in house and manage it ourselves.
Current they have a two node RACon windows
The new enviroment we are building here , we want to get rid of RAC and bring it back to a single instance environment.
How do i approach this?
1. My first option was to create a new database server and do the export dp from one of the node and import to the new single instance enviroment.
My conncern is can you do export from RAC database and import it to a non RAC enviroment?
2. My second option is to delete one node on the two node RAC and then do export dump or cold backup and copy the database files and necessary config files.
let me know how i can approach this.....

Okay guys after digging aroung i found the following approach.....
Cloning Oracle 10gR2 from RAC Environment to Single Instance Environment will raise the following error
ORA-29702: Error occurred in Cluster Group Service Operation.
The new instance is looking for CRS on new single instance non RAC environment.
For UNIX platform follow the following steps:
- Shutdown the instance which is cloned to non RAC.
- Shutdown all the listeners.
- Relink Oracle executable with rac_off option.
$ make -f ins_rdbms.mk rac_off
$ make -f ins_rdbms.mk ioracle
- Remove all the parameters from init.ora which points to second instance
and it is on other node.
- Remove cluster_database parameter
- Remove undo_tablespace parameter which points to second instance
For Windows Platform follow the following steps:
- Shutdown the instance which is cloned to non RAC.
- Shutdown all the listeners.
- Rename following file in %ORACLE_HOME%/bin directory: orarac10.dll to orarac10.dll.bak
Give me your thoughts, there is nothing on Metalink....

Guidelines for SGA and PGA tuning for 10gR2 RAC and ASM ?

I am looking for tuning information on SGA and PGA tuning for Oracle 10g (10.2) RAC and ASM for a 4TB OLTP and DSS mixed environment on Solaris 10 platform.

We are running Solaris 10 SPARC 64 bit with Oracle 10gR2 RAC Enterprise Edition and ASM on Sun servers with 32GB of RAM for memory for a 4TB OLTP database.
It is in design phase so I do not have an existing AWR or Statspack report yet. Is there a best practices guideline on how to size parameters for the SGA (ie: shared_pool_size, etc) and PGA for this environment from Oracle?

Clone multi-node RAC and ASM to single node

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