RAC: using Sun cluster or Oracle clusterware?

Going to build RAC on SUN machine (Solaris 10) and Sun SAN storage, couldn't decide how to build the foundation-----use Sun cluster 3.1 or Oracle clusterware?
Any idea? Thanks.

Starting with 10g Release 2, Oracle provides its own and indipendient cluster management, i.e., Clusterware which can be used as replacement for the OS specific cluster software.
You can still use the OS level cluster, in this case, Oracle Clusterware depends on OS cluster for the node information.
If you are on 10g, you can safely, go with Oracle Clusterware.
Jaffar

Similar Messages

File System Sharing using Sun Cluster 3.1

Hi,
I need help on how to setup and configure the system to share a remote file system that is created on a SAN disk (SAN LUN ) between two Sun Solaris 10 servers.
The files in the remote system should be read/writabe from both the solaris servers concurrently.
As a security policy NFS mount is not allowed. Some one suggested it can be done by using Sun Cluster 3.1 agents on both servers. Any details on how I can do this using Sun Cluster 3.1 is really appreciated.
thanks
Suresh

You could do this by installing Sun Cluster on both systems and then creating a global file system on the shared LUN. However, if there was significant write activity on both nodes, then the performance will not necessarily what you need.
What is wrong with the security of NFS? If it is set up properly I don't think this should be a problem.
The other option would be to use shared QFS, but without Sun Cluster.
Regards,
Tim
---

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

RAW disks for Oracle 10R2 RAC NO SUN CLUSTER

Yes you read it correctly....no Sun cluster. Then why am I on the Forum right? Well we have one Sun Cluster and another that is RAC only for testing. Between Oracle and Sun, neither accept any fault for problems with their perfectly honed products. Currently, I have multipathed fiber hba's to a Storedge 3510, and I've tried to get Oracle to use a raw lun for the ocr and voting disks. It doesn't see the disk. I've made sure they are stamped for oracle:dba, and tried oracle:oinstall. When presenting /dev/rdsk/C7t<long number>d0s6 for the ocr, I get a "can not find disk path." Does Oracle raw mean SVM raw? Should I create metadisks?

"Between Oracle and Sun, neither accept any fault for problems with their perfectly honed products"...more specific:
Not that the word "fault" is characterization of any liability, but a technical characterization of acting like a responsible stakeholder when you sell your product to a corporation. I've been working on the same project for a year, as an engineer. Not withstanding a huge expanse of management issues over the project, when technical gray areas have been reached, whereas our team has tried to get information to solve the issue. The area has become a big bouncing hot potato. Specifically, when Oracle has a problem reading a storage device, according to Oracle, that is a Sun issue. According to Sun, they didn't certify the software on that piece of equipment, so go talk to Oracle. In the sun cluster arena, if starting the database creates a node eviction from the cluster, good luck getting any specific team to say, that's our problem. Sun will say that Oracle writes crappy cluster verify scripts, and Oracle will say that Sun has not properly certified the device for use with their product. Man, I've seen it. The first time I said O.K. how do we avoid this in the future, the second time I said how did I let this happen again, and after more issues, money spent, hours lost, and customers, pissed --do the math. I've even went as far as say, find me a plug and play production model for this specific environment, but good luck getting two companies to sign the specs for it...neither wants to stamp their name on the product due to the liability. Yes your right, I should beat the account team, but as an engineer, man that's not my area, and I have other problems that I was hired to deal with. I could go on. What really is a slap in face is no one wants to work on these projects, if given the choice with doing a Windows deployment, because they can pop out mind bending amounts of builds why we plop along figuring out why clusterware doesn't like slice 6 of a /device/scsi_vhci/ . Try finding good documentation on that. ~You can deploy faster, but you can't pay more!

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

Encountered ora-29701 during Sun Cluster for Oracle RAC 9.2.0.7 startup (UR

Hi all,
Need some help from all out there
In our Sun Cluster 3.1 Data Service for Oracle RAC 9.2.0.7 (Solaris 9) configuration, my team had encountered
ora-29701 *Unable to connect to Cluster Manager*
during the startup of the Oracle RAC database instances on the Oracle RAC Server resources.
We tried the attached workaround by Oracle. This workaround works well for the 1^st time but it doesnt work anymore when the server is rebooted.
Kindly help me to check whether anyone encounter the same problem as the above and able to resolve. Thanks.
Bug No. 4262155
Filed 25-MAR-2005 Updated 11-APR-2005
Product Oracle Server - Enterprise Edition Product Version 9.2.0.6.0
Platform Linux x86
Platform Version 2.4.21-9.0.1
Database Version 9.2.0.6.0
Affects Platforms Port-Specific
Severity Severe Loss of Service
Status Not a Bug. To Filer
Base Bug N/A
Fixed in Product Version No Data
Problem statement:
ORA-29701 DURING DATABASE CREATION AFTER APPLYING 9.2.0.6 PATCHSET
*** 03/25/05 07:32 am ***
TAR:
PROBLEM:
Customer applied 9.2.0.6 patchset over 9.2.0.4 patchset.
While creating the database, customer receives following error:
ORA-29701: unable to connect to Cluster Manager
However, if customer goes from 9.2.0.4 -> 9.2.0.5 -> 9.2.0.6, the problem does not occur.
DIAGNOSTIC ANALYSIS:
It seems that the problem is with libskgxn9.so shared library.
For 9.2.0.4 -> 9.2.0.5 -> 9.2.0.6, the install log shows the following:
installActions2005-03-22_03-44-42PM.log:,
[libskgxn9.so->%ORACLE_HOME%/lib/libskgxn9.so 7933 plats=1=>[46]langs=1=> en,fr,ar,bn,pt_BR,bg,fr_CA,ca,hr,cs,da,nl,ar_EG,en_GB,et,fi,de,el,iw,hu,is,in, it,ja,ko,es,lv,lt,ms,es_MX,no,pl,pt,ro,ru,zh_CN,sk,sl,es_ES,sv,th,zh_TW, tr,uk,vi]]
installActions2005-03-22_04-13-03PM.log:, [libcmdll.so ->%ORACLE_HOME%/lib/libskgxn9.so 64274 plats=1=>[46] langs=-554696704=>[en]]
For 9.2.0.4 -> 9.2.0.6, install log shows:
installActions2005-03-22_04-13-03PM.log:, [libcmdll.so ->%ORACLE_HOME%/lib/libskgxn9.so 64274 plats=1=>[46] langs=-554696704=>[en]] does not exist.
This means that while patching from 9.2.0.4 -> 9.2.0.5, Installer copies the libcmdll.so library into libskgxn9.so, while patching from 9.2.0.4 -> 9.2.0.6 does not.
ORACM is located in /app/oracle/ORACM which is different than ORACLE_HOME in customer's environment.
WORKAROUND:
Customer is using the following workaround:
cd $ORACLE_HOME/rdbms/lib make -f ins_rdbms.mk rac_on ioracle ipc_udp
RELATED BUGS:
Bug 4169291

Check if following MOS note helps.
Series of ORA-7445 Errors After Applying 9.2.0.7.0 Patchset to 9.2.0.6.0 Database (Doc ID 373375.1)

Veritas required for Oracle RAC on Sun Cluster v3?

Hi,
We are planning a 2 node Oracle 9i RAC cluster on Sun Cluster 3.
Can you please explain these 2 questions?
1)
If we have a hardware disk array RAID controller with LUNs etc, then why do we need to have Veritas Volume Manager (VxVM) if all the LUNS are configured at a hardware level?
2)
Do we need to have VxFS? All our Oracle database files will be on raw partitions.
Thanks,
Steve

> We are planning a 2 node Oracle 9i RAC cluster on Sun
Cluster 3.Good. This is a popular configuration.
Can you please explain these 2 questions?
1)
If we have a hardware disk array RAID controller with
LUNs etc, then why do we need to have Veritas Volume
Manager (VxVM) if all the LUNS are configured at a
hardware level?VxVM is not required to run RAC. VxVM has an option (separately
licensable) which is specifically designed for OPS/RAC. But if
you have a highly reliable, multi-pathed, hardware RAID platform,
you are not required to have VxVM.
2)
Do we need to have VxFS? All our Oracle database
files will be on raw partitions.No.
IMHO, simplify is a good philosophy. Adding more software
and layers into a highly available design will tend to reduce
the availability. So, if you are going for maximum availabiliity,
you will want to avoid over-complicating the design. KISS.
In the case of RAC, or Oracle in general, many people do use
raw and Oracle has the ability to manage data in raw devices
pretty well. Oracle 10g further improves along these lines.
A tenet in the design of highly available systems is to keep
the data management as close to the application as possible.
Oracle, and especially 10g, are following this tenet. The only
danger here is that they could try to get too clever, and end up
following policies which are suboptimal as the underlying
technologies change. But even in this case, the policy is
coming from the application rather than the supporting platform.
-- richard

Installing oracle 10g RAC on sun cluster

Hi
we r implementing new setup with fallowing configuration
OS: sun solaris 10 on sunfire v890 servers 2 node rac
4 processor server sun SPARC 64 bit
SUN cluster
oracle :10.2.0.3
please send me related documents for installing CRS and RdBMS and
Message was edited by:
Adithya
Message was edited by:
Adithya

Installation Guide for Solaris Cluster 3.2 Software and Oracle 10g Release 2 Real Application Clusters

Migrating a Sun Cluster Running Oracle to New Hardware

Has anyone attempted this? Essentially we are moving a Sun Cluster from one location to hardware at another location while maintaining the same node names. From what I can tell, I need to (on an install lan):
1) Load the OS
2) Configure the IPs
3) Install Sun Cluster
4) Install Oracle Parallel Server/RAC
5) Restore the data on a per node basis
6) Restore the shared data
7) Adjust, tweak, and run
Are there any pitfalls or suggestions on the approach? The shop is relatively new to clustering much less oracle clustering and the original cluster was installed by admins gone bye.

I would say that Apple should be able to update your 36-months maintenance agreement with a OSXS 10.4 serial number.
As far as I know, the structure of 10.3 and 10.4 serial numbers is different (wasn't the case between 10.2 and 10.3) so I'm short of a technical answer here.
Maybe you could try :
/System/Library/ServerSetup/serversetup -setServerSerialNumber xxxx-xxx-xxx-x-xxx-xxx-xxx-xxx-xxx-xxx-x
in a Terminal window on the server. It's theorically the same as using Server Admin but maybe this could help.

Sun Cluster, ZFS, Oracle

Hi, I'm planning an installation of a Solaris Cluster 3.2 with 2 nodes and a Sun storage array 6140: can I use ZFS with Oracle? It's supported? Which is the best solution for soring datafiles? Do I have to install Volume Manager too?
thanks
Lorenzo

Ron,
I may have misunderstood your question so I'll answer with perhaps more.
- You will need to use the resource type SUNW.HAStoragePlus to automate/manage the failover of the ZFS zpool between cluster nodes. Refer to the SUNW.HAStoragePlus man page for more info.
- The HA-Oracle data service will need to have a resource_dependency against the SUNW.HAStoragePlus resource you created earlier for the ZFS Zpool. Refer to the r_properties man page.
- When creating (or updating) the HA-Oracle data service the VALIDATE method will run on all cluster nodes, however because a SUNW.HAStoragepPlus resource is managing a failover (Zpool) file system, the validation on the cluster node where the Zpool in not imported will be ignored. Consequently, the validation will be successful.
The combined effect is that if the Oracle alert log is located within the Zpool then it will be available before the HA-Oracle data service attempts to start the Oracle database.
Regards
Neil

RAC using SUN Geo Clusters with Fail over

Hi ,
My customer is in the process of investigating and deploying Sun GeoClusters to fail over a RAC from one location to another, the distance between the primary and fail over site is 1200km, they are going to use TrueCopy to replicate the storage across the sites.
I am in the process of gathering information and need to find out more detail and if any one has any knowledge of this software.If anybody knows about the clients who are using(some urls) the same please let me know.
Regards
Manoj

TrueCopy is a way of replicating storage offsite. RAC works using a single source for the database. That means that RAC can not be used simultaneously at both locations with the files being used locally.
If my memory serves me well, Hitachi TrueCopy was OSCP (oracle storage compatiblity program) certified, but the OSCP program seems to be discontinued per januari 2007 (see http://www.oracle.com/technology/deploy/availability/htdocs/oscp.html)
That means that you can use TrueCopy to replicate the storage layer to another location (according to the OSCP note), and use the replicated storage to startup the RAC database in case of failover.

Sun Cluster with Oracle Dataguard

When I use the logical hostname in the dataguard configuration and go and enable it I get
ORA-16596: site is not a member of the Data Guard configuration
I use the physical hostname works ok.
Has any one got around this

You may find further informations here:
www.oracle-10g.de

Oracle10g RAC with Oracle clusterware

Hi,
We are installing Oracle10g RAC with Oracle clusterware with ASM on Solaris 10. Does anybody have a installation/configuration manual for this combination.
Thanks,
Murtuja

Sun would not recommend using Oracle 10g RAC without Sun Cluster. Setup for that configuration would be found in the Sun Cluster Data Service for Oracle 10g RAC and the Oracle installation manuals.
The installation of Oracle Clusterware alone would be documented in Oracle's manuals. If you have any problems with that, you are better off asking Oracle.
Regards,
Tim
---

Install Oracle Clusterware/RAC Windows x32bit or Windows 64bit ?

Hi,
What is your suggestion to install Oracle Clusterware RAC on Windows.
Why choose Windows 32 bit ?
Why choose Windows 64 bit?
What are the advantages and disadvantages?

Hi,
I definitely recommend 64bit Windows, the principal reason is memory addressing limitation.
In my standpoint do not exist benefits to use Windows 32bit with Oracle Clusterware/RAC.
32-bit processors have address registers that are 32-bits wide (can address up to 4GB physical RAM).
You can to use a workaround by enabling the addressing of more than 4GBytes using parameters in Windows (AWE/PAE). But if I want to use more than 4Gbytes, I'll go to Windows 64bit.
The 4GB addressable space per process is divided into system and user space. By default, the system space is 2GB and the private user space is 2GB. Each user process shares the same 2GB System address space.
The services of the Clusterware, ASM and Listener will consume at least 1Gbyte of memory initially.
If you create an instance to to use 1Gbytes and you have 50 connections you will have problems with connections to the database raising the following error.
TNS-00510: Internal limit restriction exceeded
32-bit Windows Error: 8: Exec format error
TNS-00507: Connection closed
32-bit Windows Error: 109: Unknown errorReason: Problems of memory usage. i.e. Out of Memory.
Another point:
With Windows 32-bit using Clusterware/RAC 11.1 you can set Automatic Memory Management(AMM) feature (MEMORY_TARGET) but you cannot use if you create 2 Instances on same Host.
Check this note..
*ORA-27102, OSD-00031 Unable To Extend Memory_max_target And Memory_target Past 2GB [ID 842881.1]*
Oracle Solution: Please install the 64-bit OS on 64-bit server, hence there is no memory limitations
I belive that is reason wich Oracle not support Oracle Grid Infrastructure 11.2 on Windows 32-bit. You cannot use ASM 11.2 on Windows 32-bit.
Definitely do not exist reason for me to to use Windows 32bit to support Oracle Clusterware.
There are lot services involved wich require memory and a big limitation of memory on 32-bit.
At present all latest CPUs support 64bit. Then install Oracle Clusterware/RAC x64, even when you are use less than 4GBytes memory, you only have benefits.
Benefits of Use 64-bit are:
64-bit versions of Windows have implemented up to 16 terabytes of virtual address space
64-bit programs use the 16 terabyte tuning model (8TB user / 8TB kernel)
No performance penalties for large memory
Unlimited user connectivity
64-bit Windows versions allow addressing of large physical memory sizes without using PAE
*Windows Memory Configuration: 32-bit and 64-bit [ID 873752.1]*
This document gives a better understanding of my perspective.
http://levipereira.wordpress.com/2011/02/12/comparison-of-32-bit-and-64-bit-oracle-database-performance-on-the-dell-poweredge-6850-server-with-microsoft-windows-server-2003/
Regards,
Levi Pereira

Oracle RAC on solaris Cluster - advantages

Hi,
I wonder what are the advantages of installing Oracle Rac on solaris Cluster.
Oracle Rac is a cluster solution by itself and puting it to solaris Cluster will complicate a whole system a lot.
One advantage I know iis that solaris cluster will secure a voting disks but those could be also secure by using NFS.
Please give me your opinion if its worth in general to iinstall RAC 11g in solaris cluster 3.2.
How do you think, will Oracle extend the solaris cluster solution for databases in the future ?
Many thanks in advance.

CRS is built to manage RAC. Using any other cluster software for RAC will complicate the solution without adding benefit.
But if you are building a cluster to run application servers etc, then it would be better to use a more flexible cluster solution. (e.g NOT crs)

RAC: using Sun cluster or Oracle clusterware?

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