Red Hat Cluster Suite and Oracle RAC

HI Guys,
Our boss will plan to configure Red Hat Cluster Suite to replace to update oracle RAC.
Are there some experienced expert to explain advantage and risk of Red Hat Cluster Suite v Oracle RAC 11.2
Thanks
Jin

Hi,
first of all Red Hat Cluster Suite cannot replace the RAC functionality. RAC is database Red Hat Cluster Suite, just provides clusterware. So all with what you will end up is a plain old failover cluster solution.
So in maximum Red Hat Cluster Suite can replace the Oracle Clusterware. (But not below a RAC, since this is not supported and even with integration with other clusterware Oracle Clusterware will still be there).
So what he will end up is also replacing RAC with single instance databases in a failover cluster solution, and with this will decrease a lot of RAC capabilities:
=> Rolling Upgrade (OS / Clusterware and some database patches)
=> Storage migration/consolidation
=> Fast failover (30 seconds vs. minutes).
See www.oracle.com and you will find whitepapers with differences between failover clusters and RAC.
http://www.oracle.com/technetwork/database/enterprise-edition/failover-cluster-134770.pdf
But even if there are other justifications to reduce availablity (which actually can only be costs), I still wonder, why he wants to replace Oracle Clusterware - the clusterware shipped with Oracle is far more mature than the one from the Red Hat cluster Suite.
And there is no better integration for Oracle databases in clusterware than what Oracle clusterware can provide.
Even more so, OCW is a full capable clusterware and you can build your own failover cluster solution for free.
The same would have to be done if he replaces it with redhat cluster.
PS: If someone is providing failover scripts for Oracle in Redhat clusters, it will be Redhat (but I think you have to write them yourself).
Regards
Sebastian

Similar Messages

Red Hat Cluster Suite without the use of RAC

Hi,
I want to install Oracle 9i/10g database on two nodes in linux redhat AS 3. I want to use Red Hat Cluster Suite for clustering and failover the Oracle db without the use of RAC. Is it possible and would it be sufficient enough ? Does Red Hat Cluster Suite support with Oracle 10g or just 9i ? With Red HAt Cluster Suite, would it require to have one virtual IP ?
Thanks

If you want failover all you need is a dataguard solution and skip out on cluster suite.
If you want Distributed Database then you need RAC.. You can't implement a 9i/10g cluster per say by using an OS solution vs an Oracle solution.
Node A - Primary
Node B - Secondary
Node A -> B (DataGuard redo replication)
Process Management scripts to switch users from A to B and vice versa pending recovery of instances. Cluster suite has no involvement outside of what may be nice nice system management capability.

Install problems - Red Hat 5.2 and Oracle 8.0.5.1

I am trying to install Oracle 8.0.5.1 on 200Mhz/48Meg Intel Pentium system with RedHat 5.2
As I'm rather new to Linux, I decided to find a thorough description of the installation procedure and have used the one on:
http://jordan.fortwayne.com/oracle/rh5x.html
However, when I get to the point where I should start ORAINST, the system tells me it cannot find the file.
What can I do?
null

Hi there,
teh file orainst is very much in the directory. All you have to do is.
1. set the PATH=$PATH:. in your .profile. This will ensure that can execute the files from the current directory.
2. cd to /mnt/cdrom/orainst
3. execute teh command orainst.
If you have still problem I am glad to assist you.
I have done my installation in RH5.2 , its fine, but RH6.1, I have problem
thanks
siva
[email protected]
null

Step wise installation on red hat as 4 and patches

hello,
plz send me step wise step oracle 9i installation on red hat AS 4 and required patches.

If anyone has such a beast, it'll be either Werner (http://www.puschitz.com) or Ivan (http://ivan.kartik.sk/)

Install SAP ERP 6.0 with Linux and Oracle RAC

Hi Guru,
I want to install SAP ERP 6.0 with Linux and Oracle RAC. Is this possible?
Where do I find information?
Thanks,
Hugo.

Hello Hugo,
You can use either RAC or dataguard. On note [105047|http://service.sap.com/sap/support/notes/105047]:
14. Data Guard
    o You can use "Physical Standby".
    o You cannot use "Logical Standby".
    o You can use Data Guard Broker.
    o You can use Maximum Performance Mode, Maximum Availability Mode and Maximum Protection Mode.
    o In the case of Maximum Availability and Maximum Protection, you must pay particular attention to a fast network connection in order to avoid performance problems.
    o Maximum Protection causes the primary database to terminate if problems occur in the standby database.
60. Real Application Cluster (RAC)
    o You can use this feature in accordance with Note 527843.
Regards,
Eduardo Rezende

Red hat Linux support for Oracle

Hi! Can some body tell me which version of Red Hat Linux is supported. I was told that Oracle supports only upto Red hat 7.1 for Oracle 8.1.7.3.
thanks

I installed 9iAS on RedHat 7.3, see my post at:
Re: SQL query report columns
I don't know about versions < 7.3, but 7.3 by default includes kde 3 :)

Difference between oracle Developer suit and Oracle Application Server???

Dear all,,
If any one please tell me the main difference between Developer Suit and Oracle Application Server.
I will be very thank ful.
Thank you
Hina.

Hi Hina
can i deploy my application build on oracle 10g using developer suite with db10g and I don't use application server?For individual use and development yes u can using oracle Developer suit after starting OC4J
but for client use for more than x user to be able to run reports using parameter forms and other forms application u must use Oracle Application Server
An application server is
a server program in a computer in a distributed network that provides the business logic for an application program.
The application server is frequently viewed as part of a three-tier application, consisting of a graphical user interface (GUI) server, an application (business logic) server, and a database and transaction server.
More descriptively, it can be viewed as dividing an application into:
--- A first-tier, front-end, Web browser-based---
1.graphical user interface, usually at a personal computer or workstation
2.A middle-tier business logic application or set of applications, possibly on a local area network or intranet server
3.A third-tier, back-end, database and transaction server, sometimes on a mainframe or large server
Hope this helps,
Regards,
Amatu Allah

BODS and Oracle RAC

Do we know of any problems with BODS and Oracle Real Application Clusters architecture? For example, a RAC TNS entry would specify one service name but multiple hosts for load balancing and failover. In BODS the connections are specified in many places (web console, datastores, job server). As far as I remember in some of those places we do have to enter the host name. Would this disqualify BODS from benefiting from RAC or would it (even worse) cause problems? Any official note by SAP on BODS and Oracle RAC?
Thanks.

Hi Mahir,
As far as I know it's only the web console that requires the hostname, however I am using DS XI 3.1 and when selecting database type Oracle in the web console there is a checkbox for 'Oracle RAC'. If you check this box then you do not require to enter the hostname.

Install Oracle 11i Suite and Oracle 10g on same Server

Hi
We are an Educational firm planning to launching Oracle 11i and 10g.
Can I install both the Oracle 11i E-Business Suite and Oracle 10g on the same Server? If it can What is best configuration for the Server that can I bought?
provide Configuration too.
thanks

"However, I do not suggest any windows platform for 11i as that is not so good os for 11i. You may either go far unix or linux" - 140042
That's absolutely right. It is better to have at least two linux/unix machines:
# 1 machine for application server - admin, web, form, concurrent services
# 2 machine for DB server
If you want, you may integrate Oracle apps 11.5.10 (on #1 and # machines) with OracleAS 10g (# machine).

Difference btwn Oracle Ebusiness Suite and Oracle Apps SCM

Whatz the diffrence between training in Oracle apps E business suite and Oracle Apps SCM?

E Business suite includes Oracle Apps SCM along with HR, Finance, Projects and Sales and Marketing family packs

Does oracle clusterware and oracle RAC require sun cluster

Hi,
I have to setup oracle RAC on solaris 10 SPARC. so is it necessary to install sun cluster 3.2, QFS file system on solaris
I have 2 sun sparc servers with solaris 10 installed on it and shared LUN setup(SAN disk RAID 5 partitions)
Have to have 2 node setup for RAC load balancing.
Regards
Prakash

Hi Prakash,
very interesting point:
As per oracle clusterware documents the cluster manager support is only for windows and linux.
In case of solaris SPARC will the cluster manager get configured ???
The term "Cluster Manager" refers to a "cluster manager" that Oracle used in 9i times and this one was indeed only available on Linux / Windows.
Therefore, let me, please, ask you something: Which version of Oracle RAC do you plan to use?
Because for 9i RAC, you would need Sun or Veritas Cluster on Solaris. The answers given here that Sun Cluster would not be required assume 10g RAC or higher.
Now, you might see other dependencies which can be resolved by Sun Cluster. I cannot comment on those.
For the RAW setup: having RAW disks (not raw logical volumes) will be fine without Veritas and ASM on top.
Hope that helps. Thanks,
Markus

Sun cluster and oracle RAC

my client is insisting on putting oracle RAC on top of sun cluster, the thing is i don't know what is the benifit of creating such an architecture, i tries to search on the internet but couldn't understand the benifits nor the advantage, Kindly if some one has implemented such an architecture to let us know the use and the benifits

Hi,
Here on my environment, there is SUNCluster only for single instances. The Clusterware Oracle is complete providing high availability and load balance for your database, you don't need sun cluster with this case, no advantages gained. The only thing controlled by SUNCluster on my RAC environment is QFS (Cluster file system from SUN).
If search on this forum, there are many discussion by this topic (suncluster X RAC) like this post Re: Sun Cluster.. Why?
Regards,
Rodrigo Mufalani

Error Installing ERP2005 on Red Hat 4es Linux with Oracle

Normally I only install SAP for customers on Unix boxes or WIndows, but I was asked for a customer to do an installation on Red Hat 4es 64bit. It will be a Sandbox system for the customer. ERP2005 with Oracle.
But after some issues on shared objects when I wasn't able to start the sapinst, cause there was no JRE installed, but has been installed after this (version 1.4.2.13 for linux). I now run into the following issue when ./sapinst is running and me trying to start the ./startInstGui.sh I get the following :
java.lang.RuntimeException: invocation target exception: /usr/java/j2re1.4.2_13/lib/i386/libawt.so: libXp.so.6: cannot open shared object file: No such file or directory
both files are there, JAVA_HOME had been set, java had also been set as path, but when I do a file on the files it gives me:
[root@su49tas1 lib64]# file libXp.so.6.2
libXp.so.6.2: ELF 64-bit LSB shared object, AMD x86-64, version 1 (SYSV), stripped
[root@su49tas1 i386]# file libawt.so
libawt.so: ELF 32-bit LSB shared object, Intel 80386, version 1 (SYSV), stripped
looking at this there might be a conflict on version, but the libXp.so comes from the RH install cd and the libawt.so comes from the jre1.4.2.13-rpm.bin file downloaded from the java sun website.
strange thing is that I cannot find a 64bit version so that might bring down my thoughts on version conflict.
Hopefully someone had had this same issue also and had solved it, but also other input which might help me solve this is appreciated.
cause this is turning my head for a day and night
cheers
Chris
Message was edited by:
christian bults
SE had been edited to ES at 11:04cet

invocation target exception: Can't connect to X11 window server
installed and ran ldconfig.
Now it works again

UTL_FILE_DIR and Oracle RAC

Gentlemen,
I have installed with sucess an environment with Oracle RAC with two servers. The application that runs in these servers, has batch procedures, and it has to save flat files during these processes. When the processes run with both servers something goes wrong and the system stops. It doesn´t happen when I shutdown one of the servers. I tried to setup directories in the storage system (external disks) but it wasn´t allowed too.
Does anyone know how can I setup utl_file_dir to work with both servers? Is there another parameter to set?
Thank you all,
Best regards.
Roberto Cavalcante
Brazil

VCFS/CFS/NFS are just filesystems and UTL_FILE does file i/o. If you have sessions in multiple instances that write to the same file on a cluster filesystem, the outcome would be unpredictable. Most likely, the last person to write to the file would have their changes saved. Oracle DB (RAC or not) doesn't handle any concurrency related to UTL_FILE writes. So, even if you were in the same instance (non-RAC) and had two sessions writing to the same file, I don't think you'd get the desired results :). The file would likely be a mess and you'd have to use different file names or control concurrency yourself manually.

HACMP and Oracle RAC

Hello All,
I want to install Oracle 11g R2 on AIX 6.1.
After doing some researches i found that there are some documents mentioning that HACMP should not be installed while installing Oracle RAC.
what is the use of HACMP ? Is it optional ? when should be installed and when not?
Please can you provide me all details abut HACMP and how it affects ORACLE RAC 11g R2 installation on AIX??
Regards,

NB wrote:
Hello All,
I want to install Oracle 11g R2 on AIX 6.1.
After doing some researches i found that there are some documents mentioning that HACMP should not be installed while installing Oracle RAC.
what is the use of HACMP ? Is it optional ? when should be installed and when not?
Please can you provide me all details abut HACMP and how it affects ORACLE RAC 11g R2 installation on AIX??
Regards,
Hi,
HACMP is vendor clusterware (IBM technology) for cluster it is High Availability Cluster Multi Processing. When installing Oracle RAC it must installed on top of vendor clusterware.
HACMP comes in play when you use raw logical volume and it needs to be managed by HACMP.
Since 10g it is not mandatory to use HACMP so you can choose not to use it and let Oracle manage all the cluster services
Hope this helps
Cheers

Red Hat Cluster Suite and Oracle RAC

Similar Messages

Maybe you are looking for