Oracle RAC and VMWARE demo

Does anyone have the Oracle RAC VMWARE demo. I lost it. I loved that thing. Oracle use to have it, now no more. Any help would be appreciated
[email protected]
Thanks

Check following link
http://www.oracle-base.com/articles/10g/OracleDB10gR2RACInstallationOnCentos4UsingVMware.php

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How to change permissions on shared storage to install Oracle RAC on vmware

Hello:
- I am trying to install Oracle RAC using vmware.
- But when I try to change permissions for the shared storage,
the owner and group of the shared storage does not change.
- Has some else installed Oracle RAC onto vmware ?
- I am using Oracle RAC 10.2.0, solaris 5.10 x86
Thanks
Jlem

I have successfully installed RAC on vmware following this article, maybe you can give it a try,
Oracle 10g RAC On Linux Using VMware Server
http://www.oracle-base.com/articles/10g/OracleDB10gR2RACInstallationOnCentos4UsingVMware.php

Oracle RAC on VMWare Fusion

Hi All,
Has anyone installed Oracle RAC on VMWare Fusion ? Can you please, pass links or documentation ?
Thanks

Hi All,
Has anyone installed Oracle RAC on VMWare Fusion ? Can you please, pass links or documentation ?
Thanks

Oracle RAC and Datastage

Could anyone tell me If you have some Best Practices with Oracle RAC and Datastage ETL. I am concerned about performace of ETL loads into oracle database......

http://download.oracle.com/docs/cd/B19306_01/server.102/b14220/bus_intl.htm#sthref2435
Your answers are just a few clicks beyond the URL below.
http://tahiti.oracle.com

Need to understand basics of Oracle RAC and Grid technology, for training

I need to understand Oracle RAC and Grid infrastructure, from a manager's / training perspective.
I see links here and here, so a couple questions:
- what's the basic difference from a layman's (e.g., a manager's) perspective ?
- What training options are available for a generic 11g DBA to learn this new technology ? I've seen this course from an Oracle partner ("Course:Oracle 11g: RAC and Grid Infrastructure Administration Accelerated Release 2"), for a boat load of money, for 5 days I think. So we're looking for something a little more reasonable (and accessible), e.g., books, online, etc.

Wm Peck 1958 wrote:
I need to understand Oracle RAC and Grid infrastructure, from a manager's / training perspective.
I see links here and here, so a couple questions:
- what's the basic difference from a layman's (e.g., a manager's) perspective ?
- What training options are available for a generic 11g DBA to learn this new technology ? I've seen this course from an Oracle partner ("Course:Oracle 11g: RAC and Grid Infrastructure Administration Accelerated Release 2"), for a boat load of money, for 5 days I think. So we're looking for something a little more reasonable (and accessible), e.g., books, online, etc.
For a very basic definition, RAC is technology that is used by the database and GI is the infrastructure that makes RAC work. In a forum reply, that's probably all what can be said about both. For a very lengthy answer, you should read the links that you have quoted.
For #2, the course that you are looking at is called Accelerated as it combines two courses in a single week training-RAC(4) and GI(3). So it's a 7 day curriculum that one would be doing in a 5 day course and that should justify its cost. But let me say, it's a really really good course. But on the other side, it can be quite overwhelming for someone who doesn't know about these technologies already. So I shall suggest that you send your team to each course individually and probably after doing some homework . They can start reading the following books,
Pro Oracle Database 11g RAC on Linux
https://www.mheducation.co.in/html/9781259004063.html
And this doc link,
Oracle Database Online Documentation 11g Release 2 (11.2)
Aman....

Oracle RAC on VMWare vs. Virtualbox

hello,
has anyone tested Oracle RAC DB 11g performance on VMWare server and on Virtualbox?
I wonder which virtual solution is faster.

I have created several Virtual Machines on my laptop using both VMWare Server 2 and Virtual Box (various versions utilized over time). I have found that the memory overhead of Virtual Box is lower then that of VMWare Server can not answer why I can jsut say that I have more free memory with Virtual Box then with VMWare Server 2 when using Virtual Machines with same configuration. On my Laptop I have not noticed a large performance difference between virtual box and VM Ware Server for Virtual Machines of like resource allocation and activity types, the performance appears to vary more by the resource consumption and activity executing within the VM. If I had to give a gut feel for an overall local VM tool, I like virtual box better then VMWare Server. I also see Virtual Box Updates coming, however not seen an update to VM Ware Server in a while. Hope this helps

Oracle Rac On Vmware

I have successfully installed Oracle Rac clusterware and database on Vmware using Oracle Red-Hat enterprise Linux -5.
I have a doubt here, that when I restart my setup the disks in Asm are not mounted automatically during service start, so I have to first manually mount my disks in ASM instance.
The thing goes smooth after re-issuing the command
./crsctl start -all
My Database instance goes up
So I have a question on How to configure the ASM instance so that the Disk mounts automatically when the service is starting up.
Thanks,
Varun

please check value of ASM_DISKGROUPS parameter in ASM pfile.
ASM_DISKGROUPS specifies a list of names of disk groups to be mounted by an Automatic Storage Management instance at instance startup or when an ALTER DISKGROUP ALL MOUNT statement is issued.
http://download.oracle.com/docs/cd/B28359_01/server.111/b28320/initparams010.htm
Regards
Rajesh

SAP - Oracle RAC - Linux - VMware

Hi,
we would like to install SAP on a virtual environment (VMware) on Linux RedHat platform.
For the database, Oracle RAC is certified with OCFS2 (1.6) only with Oracle Linux and not RedHat Linux 5.
Can we intstall Oracle RAC database on 2 nodes with Oracle Linux and OCFS2 and other SAP components on Redhat Linux 5 ?
Are there any issues with SAP matrix compatibility ?
Thank you!
Dan

Hi Audun,
Thank you for the links.
I can see the ASM support is new (2.2.2011)
On Note 527843 from 25.01.2011 - Oracle RAC support in the SAP environment
Using raw devices and ASM (Automatic Storage Management) is not supported in the SAP environment. In the case of ASM, there is an exception regarding the Oracle Cluster Registry (OCR) and the voting disks
and
on Note 1550133 - Oracle Automatic Storage Management (ASM) from 2 Feb 2011 they support ASM but with restrictions:
ACFS is required for RAC installations with ASM
To use ASM now, you have to migrate your database to ASM manually
Some important functions of SAP BR*Tools like backup, restore, recovery, tablespace and datafile management are not supported at the moment
Support for tablespace and datafile management is planned for Q2/2011
Also ASM instance will introduce another layer in the system with its problems, failures and resources consumption. I see on the Oracle Metalink alot of problems related to ASM. From the marketin point of view is ok, let's oracle do everything but I think if you will keep it simple it will be better.
I didn't figure out if you can directly install Oracle 11.2.0.2, they say "Allows direct SAP system installations with Oracle 11.2"
We have a vBlock hardware with flash disks as FAST Cache so I believe with 1TB of cache IO will not be a problem.
Thank you!
Dan

Oracle RAC and datacontrol

Hello, I have an Oracle RAC 10gR2 with 2 nodes on Suse Linux Enterprise Server 10. When I enter on the enterprise manager database control (no grid control). I see the follow message:
"Availability calculations for the cluster database target are disabled. Please enable the DBMS JOB EMD_MAINTENANCE.EXECUTE_EM_DBMS_JOB_PROCS for Database Control."
What is it? How can I clean it?
Thanks in advance.

Check out MOS note :
What is EMD_MAINTENANCE.EXECUTE_EM_DBMS_JOB_PROCS dbms_job and how to Remove / Re-create it [ID 444033.1]
Regards
Rajesh

Oracle RAC and Standards

Does anyone know if Oracle RAC is part of any emerging Grid standards?

Hi Eric
Isn't RAC a middle to reach the grid computing goals ?
“A computational grid is a hardware and software infrastructure that provides dependable, consistent, pervasive, and inexpensive access to high-end computational capabilities.” by Carl Kesselman and Ian Foster in “The Grid: Blueprint for a New Computing Infrastructure,”

Oracle rac and TDE?

We are running oracle rac on 10.2.0.3 linux Itanium platform. I am setting up TDE for the first time and I setup my wallet location to be on an ocfs file system so that each node in the cluster will have access to the key. Is that all we will need to do and is this a supported configuration for TDE in a rac environment?
Do you have to open the wallet on each instance during instance startup when running rac?
Also we have a physicla standby server configured and I setup the same wallet location on the physicla standby and copied the wallet file over, Is that all we need to do for the standby server?
Thanks.

Peter,
Good info and your video makes everything look easy.
In addition to the encrypted wallet file (ewallet.p12), I also have a cwallet.sso file in the local file system (not ACFS) on both RAC nodes of my Primary and both Standby nodes.
If I start the database and then run: SELECT * FROM V$ENCRYPTION_WALLET; it says the wallet status is open. However, as soon as a user tries to connect through our application (using jdbc), I get the "ORA-28365: wallet is not open" errors in the alert log. So then I have to run: ALTER SYSTEM SET ENCRYPTION WALLET OPEN IDENTIFIED BY "<Wallet Password>"; on each node and then users can connect through the application.
Any ideas why auto-login doesn't work and why everything is grayed out on the Wallet Tab drop down menu in OWM?
Thanks.

Database replication between Oracle RAC and Oracle Standalone DB

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?
Thanks in advance for help.

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.

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

Install SAP cluster ORACLE RAC and SCS

I need to install SAP ECC SR3 in an environment in cluster.
O.S: Linux Red Hat B.D: Oracle 10.2.0.4
I am trying to follow the official manual of SAP, but this very confused, would like the you aid.
The environment is the following one:
2 machine (Node A and Node B)
1 area of storage shared for datafiles of Oracle. /oracle/PRD.
It goes also to be installed ORACLE RAC.
My doubt is the following one: Which the steps that I have that to follow so that everything of certain.
When I go to install ORACLE RAC? Before, later or during the installation of SAP?
I go to need to install the central office services (SCS) in the two servers? Or only in one?
Somebody could help with some document or detail me of what I go to need to make?
Please!
Thanks!

Hi Alan,
Please go through this link [http://www.oracle.com/newsletters/sap/docs/wp-o10g-rac-config-unx.pdf] Hope this should help you.
Thanks and Regards,
Damanaidu J

SC 3.1/3.2 Oracle RAC and EMC replication

hi,
i need to cluster existing 2 node Oracle RAC for disaster recovery. The secondary site is about 180 km away, there is another site 10 km away which is planned to be use for bunker replication (SRDF/STAR). Is it possible to build such topology with Sun Cluster 3.1/3.2? Network connection to all sites is provided (min. 10Gbp).
What is needed to complete this task with SC?

I would recommend that you read my Blueprint from April 2006 (Architecting Availability and Disaster Recovery Solutions) as this has a lot of background on the subject.
First, you will need to implement it as a two node cluster plus a single node disaster recovery system. Ideally, the two node cluster would be configured between the two 'local' sites, i.e. with the site that is 10Km away. The remote site, at 180Km, would then be used for the disaster recovery system.
The recently announced Sun Cluster 3.2 Geographic Edition adds support for SRDF, so you could use Sun Cluster 3.2 and Geo Edition with SRDF for this. I would add that disk block based replication is not ideal for this as it does involve a lot of unnecessary replication data traffic compared with something like Oracle Data Guard. This would be my preferred option, although this is not currently integrated with Geo Edition.
If you need any more info or help, please post again.
Tim
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Oracle RAC and VMWARE demo

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