10g R2 RAC in AIX

Hello,
I always work with Linux (red hat) to build our RAC clusters, and I never have seen "abnormal" performance and stability issues.
Well, now I'm in a project to build a RAC in AIX 5.3. Somebody please can share the experience on this plataform? What is the "best practice" use or not HACMP? I've search in metalink and there's a lot of bugs related to Clusterware in AIX, the system is stable with RAC?
Thanks.

Hi user572788,
HACMP is optional option for RAC on AIX, start with 10g, Oracle Clusterware doesn't depends on vendor cluster. I have a RAC 10g on AIX running with HACMP too, as long as you configured correctly and in certification matrix, you shouldn't see any problems. For me RAC on AIX is quite stable but still has a small issues. No system is perfect in this world
Cheers
http://fiedizheng.blogspot.com/

Similar Messages

10G RAC on AIX without ASM & HACMP.

Hi,
I want to install ORACLE 10G RAC on AIX but I dont want ot use ASM or HACMP/GPFC.
Just want to install with CRS and RAW devices.Is it possible to install 10g RAC with CRS and RAW devices.
What is the best approach for this.
Regards
MMU

We're running CRS on AIX. No ASM or HACMP.
We do have the db datafiles on GPFS. We've also got one voting disk on GPFS and two on raw devices.

Question about RAC 10g on server running AIX and domain name changes

We have several 10g clusters running on IBM p-Series AIX servers, and our company is changing the domain name for our network. I am concerned that if we do not change the domain names in the TNSNAMES.ora file and also the /etc/hosts file on each server, the cluster will no longer function. We are using CRS (version 10.2.0.3) and ASM within each cluster.
Does anyone know where I can find information about changing the domain name that was set up as part of the CRS and database installs for RAC? Does anyone have experience doing this, and would be willing to share a few insights? Thanks in advance for any advice you can give!

You may be able to use the VIPCA utility for RAC to change or modify the public and private settings for your domain names on AIX. Also, the Oracle 10g DBCA "Database Configuration Assistant" should be of use to change your settings for your RAC environment.
Also, see here for a good IBM Redbook that covers Oracle 10g RAC on AIX platforms:
http://www.redbooks.ibm.com/redbooks/pdfs/sg247541.pdf
Regards,
Ben Prusinski
http://oracle-magician.blogspot.com/
Regards,
Ben Prusinski
http://oracle-magician.blogspot.com/

RAC on AIX 6.1 with HACMP

Hi
Can I have installation procedure and documents to Install 10gR2 RAC on AIX 6.1 using HACMP(for cluster control) instead of Oracle Clusterware. Is that possible ? anyone tried it before and share the experience.
Regards,
Akthar

Do you have any particular reason for using HACMP cluster control instead of CRS?
As you are going to install 10GR2 RAC So there is no need to use HACMP because 10G CRS can be installed without OS clusterware.
However CRS can be installed along with HACMP but oracle services should be controlled with CRS inly.
Regards
Rajesh

RAC Newbie: Does RAC on AIX require HACMP?

I've never installed/configured RAC before, and the documentation I'm finding has conflicts on whether HACMP needs to be installed. One FAQ states the following:
Is HACMP needed for RAC on AIX 5.2 using GPFS file system?
The newest version of GPFS can be used without HACMP, if it is available for AIX 5.2 then you do not need HACMP
Another documentation article states HACMP is REQUIRED for 9i RAC on AIX.
Does anyone know the real answer to this question? Our configuration is AIX 5.3, GPFS 2.1, Oracle 9.2.0.4. Thanks in advance!!

The latest information from Oracle says:
Oracle9i RAC always requires HACMP.
HACMP is optional for Oracle Database 10g RAC.
See details in metalink note
IBM General Parallel File System (GPFS) and Oracle RAC on AIX 5L and IBM eServer pSeries
Note:302806.1
Werner

Issues while installing ORACLE 10g R2 RAC on RHEL 5.3

i am installing oracle 10g R2 RAC on RHEL 5.3 in a test environment. my aim was to install using ASM.
i went through the pre-requisites ok before beginning with the installation.
since RHEL 5.3 doesnt support raw devices i used
http://www.idevelopment.info/data/Unix/Linux/LINUX_ConnectingToAniSCSITargetWithOpen-iSCSIInitiatorUsingLinux.shtml#Configure%20iSCSI%20Initiator%20and%20New%20Volume
udev to configure shared storage. my storage is on openfiler as a iSCSI target.
fdisk -l on both nodes shows the shared drives.
[root@node1 ~]# fdisk -l
Disk /dev/sda: 21.4 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
   Device Boot      Start         End      Blocks   Id System
/dev/sda1   *           1          13      104391   83 Linux
/dev/sda2              14        2053    16386300   8e Linux LVM
/dev/sda3            2054        2372     2562367+ 82 Linux swap / Solaris
Disk /dev/sdd: 10.5 GB, 10502537216 bytes
64 heads, 32 sectors/track, 10016 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
   Device Boot      Start         End      Blocks   Id System
/dev/sdd1               1       10016    10256368   83 Linux
Disk /dev/sdb: 10.5 GB, 10536091648 bytes
64 heads, 32 sectors/track, 10048 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
   Device Boot      Start         End      Blocks   Id System
/dev/sdb1               1       10048    10289136   83 Linux
Disk /dev/sdc: 10.5 GB, 10536091648 bytes
64 heads, 32 sectors/track, 10048 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
   Device Boot      Start         End      Blocks   Id System
/dev/sdc1               1       10048    10289136   83 Linux
Disk /dev/sdf: 10.5 GB, 10569646080 bytes
64 heads, 32 sectors/track, 10080 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
   Device Boot      Start         End      Blocks   Id System
/dev/sdf1               1       10080    10321904   83 Linux
Disk /dev/sde: 10.5 GB, 10502537216 bytes
64 heads, 32 sectors/track, 10016 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
   Device Boot      Start         End      Blocks   Id System
/dev/sde1               1       10016    10256368   83 Linux
[root@node1 ~]# ls -l /dev/iscsi/arpl*
/dev/iscsi/arpl1:
total 0
lrwxrwxrwx 1 oracle oinstall 9 Jun 30 12:58 part -> ../../sde
lrwxrwxrwx 1 oracle oinstall 10 Jun 30 12:58 part1 -> ../../sde1
/dev/iscsi/arpl2:
total 0
lrwxrwxrwx 1 oracle oinstall 9 Jun 30 12:58 part -> ../../sdd
lrwxrwxrwx 1 oracle oinstall 10 Jun 30 12:58 part1 -> ../../sdd1
/dev/iscsi/arpl3:
total 0
lrwxrwxrwx 1 oracle oinstall 9 Jun 30 12:58 part -> ../../sdb
lrwxrwxrwx 1 oracle oinstall 10 Jun 30 12:58 part1 -> ../../sdb1
/dev/iscsi/arpl4:
total 0
lrwxrwxrwx 1 oracle oinstall 9 Jun 30 12:58 part -> ../../sdc
lrwxrwxrwx 1 oracle oinstall 10 Jun 30 12:58 part1 -> ../../sdc1
/dev/iscsi/arpl5:
total 0
lrwxrwxrwx 1 oracle oinstall 9 Jun 30 12:58 part -> ../../sdf
lrwxrwxrwx 1 oracle oinstall 10 Jun 30 12:58 part1 -> ../../sdf1
[root@node1 ~]# configuring udev results in the drives being mapped to persistent drive names eg. /dev/iscsi/arpl1/part1
still when i enter the name of the raw device which i have created i get the following error. please help
Image: !http://img91.imageshack.us/img91/7448/oracle.png!

did you check this
http://download-west.oracle.com/docs/cd/B19306_01/install.102/b14203/storage.htm#BABBHECD
http://download.oracle.com/docs/cd/B28359_01/install.111/b28263/storage.htm#CDEBFDEH
also before you do what is suggested on the url posted by Mufalani,
it seems that you should do the following:
Check existence of udev raw mapping rule file /etc/udev/rules.d/60-raw.rules
On RH/EL5, udev raw mapping rule file /etc/udev/rules.d/60-raw.rules should exist by default as part of the util-linux package, for example:
# ls /etc/udev/rules.d/60-raw.rules
/etc/udev/rules.d/60-raw.rulesCreate a custom udev raw mapping rule file, /etc/udev/rules.d/61-oracleraw.rules say, for example:
# touch /etc/udev/rules.d/61-oracleraw.rules3b. Add udev raw binding rules to /etc/udev/rules.d/61-oracleraw.rules file
Add the udev raw binding rules to the /etc/udev/rules.d/61-oracleraw.rules file, for example:
# cat /etc/udev/rules.d/61-oracleraw.rules
# Raw bind to Oracle Clusterware devices
ACTION=="add", KERNEL=="sd*", PROGRAM=="/sbin/scsi_id", RESULT=="360a98000686f6959684a453333524174", RUN+="/bin/raw /dev/raw/raw1 %N"
ACTION=="add", KERNEL=="sd*", PROGRAM=="/sbin/scsi_id", RESULT=="360a98000686f6959684a453333524179", RUN+="/bin/raw /dev/raw/raw2 %N"If migrating to RHEL5/OEL5 from an earlier Linux version that relied on /etc/sysconfig/rawdevices file for persistent raw device bindings, the following script can be used as a basis for generating your RHEL5/OEL5 udev rules. Note, the script does not factor device name persistency.
#!/bin/bash
grep -v "^ *#" /etc/sysconfig/rawdevices | grep -v "^$" | while read dev major minor ; do
if [ -z "$minor" ]; then
echo "ACTION==\"add\", KERNEL==\"${major##/dev/}\", RUN+=\"/bin/raw $dev %N\""
else
echo "ACTION==\"add\", ENV{MAJOR}==\"$major\", ENV{MINOR}==\"$minor\", RUN+=\"/bin/raw $dev %M %m\""
fi
done

10g R2 RAC on Solaris 10 with EMC Storage

We are in the process of setting up 3/4 node RAC with the following components:
Oracle 10g R2 RAC
Oracle Clusterware / Sun Cluster / Veritas Cluster
Sun Solaris 10
EMC storage
ASM/Cluster FS
I would appreciate if some one can through some light on:
* ) Veritas cluster / Sun Cluster is must component or Can I use Oracle clusterware ? what are the advantages and disadvantages of using Oracl clusterware compare with varitas cluster or sun cluster
* ) Is cluster filesystem a compulsory component or Can I use ASM instead of Cluster File system.
* ) If I don't use cluster filesystem where to put CRS repository and voting disk ?
* ) What is best option for Oracle_Home, is it shared oracle home or sepereate oracle_home on each node ?
* ) Are there any known risks invovled in using ASM. How is the I/O performance with ASM on EMC with Solaris ? Are there any best practices
* ) Is GigE okay for interconnect or do I need to go for Infiniband ?
* ) Is there any notes on Best practices for the above components
*) Do I need to consider fail over option for NIC's (interconnect and public), if yes, how to do that ?
*) Are there any other risks do I need to consider ?
Thanks
G

Hi,
I see lot of good input. I have done few RAC installs on sun/solaris/emc ...
Here are few things to consider.
* ) Veritas cluster / Sun Cluster is must component or Can I use Oracle clusterware ? what are the advantages and disadvantages of using Oracl clusterware compare with varitas cluster or sun cluster
Just stay with Oracle Clusterware. If there are any issues then you only have to deal with one vendor and there will be no finger pointing. In any case Oracle Clusterware is needed even if you install Veritas/Sun.
* ) Is cluster filesystem a compulsory component or Can I use ASM instead of Cluster File system.
For the database you can use ASM. The only time I have considered a cluster filesystem is if external tables were in use.
When you use ASM you need to partition the disk with 1 meg offset or start at cyclinder 1.
* ) If I don't use cluster filesystem where to put CRS repository and voting disk ?
OCR and Voting Disk go on raw devices.
* ) What is best option for Oracle_Home, is it shared oracle home or sepereate oracle_home on each node ?
Install ORACLE_HOME, ASM_HOME and CRS_HOME locally on each server.
* ) Are there any known risks invovled in using ASM. How is the I/O performance with ASM on EMC with Solaris ? Are there any best practices
http://www.oracle.com/technology/products/database/asm/pdf/asm-on-emc-5_3.pdf
We have always installed 2 HBAs and used powerpath.
* ) Is GigE okay for interconnect or do I need to go for Infiniband ?
For a majority of cases gigE is sufficient.
* ) Is there any notes on Best practices for the above components
Have redundancy at each level.
*) Do I need to consider fail over option for NIC's (interconnect and public), if yes, how to do that ?
You can use IPMP. Use large send/receive buffers. Enable Jumbo Frames.
We had to apply some patches.
5128575 - RAC install of 10.2.0.2 does not update libknlopt.a on all nodes
4769197 - WHILE ONE NODE OF RAC IS DOWN, CONNECTIONS FROM CLIENT HANG
patch 5749953
Thanks
G

How to change SGA and PGA in 10g r2 RAC

Hi,
How to change SGA and PGA in 10g r2 RAC, its Linux.

Hi,
Here is the way i followed to change SGA and PGA in RAC.
Action Plan to change the memory parameter in the production environment(5/21/2010)
Note:
=====
Practice should be done in the DEV/TST environment before moving to Production;
Although the procedure could be applied in the testing environment the changing values
used in the testing environment should be modified since RAM number are not the
same between the testing servers and production servers.
1.     Make changes to these two parameters in one of
     the prod instance, e.g. PROD1
     ====================================================
     login as sysdba on sqlplus
Change :
alter system set sga_target=28G scope=spfile sid='*';
Change :
alter system set pga_aggregate_target=4G scope =spfile sid='*';
     sql>alter system set pga_aggregate_target=4G scope=both;
     sql>show parameter pga_aggregate_target;
          -- should see the altered number on both instances
Change:
sql>alter system set sga_max_size=28G scope=spfile sid='*';
sql>alter system set sga_max_size=28G scope=spfile ;
sql>alter system set sga_target=28G scope=spfile;
3.     shutdown database PROD (two instances should be shut down)
     $>srvctl stop database -d PROD
     $>. /$ORA_CRS_HOME/bin/crs_stat -- to check for the database status
4.     bring up database PROD (two instance should be brought up)
     $>srvctl START database -d PROD
     $>. /$ORA_CRS_HOME/bin/crs_stat -- to check for the database status
     login into both instances as sysdba to check
     sql>show parameter pga_aggregate_target
     sql>show parameter sga_max_size
          -- should see the altered number still there in both instances
          -- from step 1
     -- After confirming above two parameters are altered on both instances,
     -- then issue the syntax below in one instance
5)     check everything is ok

How to upgade Oracle from 9.2 on SUN to Oracle 10g R2 RAC on Oracle EL4

Hi all,
I have production database Oracle 9i EE Release 9.2.0.5.0 - 64bit on SunOS 5.9 cca 100GB. I would like to upgrade Oracle 10g Relase2 RAC with 2 nodes on Oracle Enterprise Linux. Database availability is 24x7 and system breakdown must be minimal. Upgrade could be done in several independent steps. What is the best form of upgrade realisation?
Thx for some idea
Libor Veverka
[email protected]

My 2 cents:
1. de-RAC 9i on solaris
2. upgrade to 10g on solaris (why? take advantage of datapump, much faster than exp/imp)
3. expdp from 10g solaris
4. create single instance 10g on linux
5. impdp on linux
Please note there are a number of issues with 9ir2.10gr2 upgrade (check metalink for details).
HTH,
[email protected]

Install Oracle 10g R2 RAC on Linux 5.x (64 bit)

Hi Friends,
Please provide the document to Install Oracle 10g R2 RAC on Linux 5.x (64 bit)
Cluster : Local Disk
OCR and Voting Disk : OCFS2
DB Home : Local
DBF Files and FRA : ASM
Please let me know how to create OCFS2 and ASM Volumes for RAW Disks (SAN Lun's)
Regards,
DB

You can refer below
http://oracleinstance.blogspot.com/2010/03/oracle-10g-installation-in-linux-5.html
http://www.oracledba.org/10gR2/Pre_Install_10gR2.html
http://www.google.com/url?sa=t&rct=j&q=&esrc=s&frm=1&source=web&cd=9&ved=0CHUQFjAI&url=http%3A%2F%2Fcommunities.vmware.com%2Fservlet%2FJiveServlet%2FdownloadBody%2F12534-102-1-13254%2F10gR2%2520RAC%2520INSTALLATION%2520IN%2520LUNX5.pdf&ei=71A5T-jrM8jMiQLihOS_Cg&usg=AFQjCNGnBrzhvm3j9PuPNy4FLJuaxetS1A&sig2=0b8VnMefcXueFUu44-66yQ
Hope this helps,
Regards
http://www.oracleracexpert.com

Oracle 10G on RAC

Hi all,
I am searching for doc on Oracle 10G on RAC.Please send me the related link.
Thanks in advance
Vipin

Look into this URL for Oracle Documentations on Oracle 10g RAC.
http://www.oracle.com/pls/db102/portal.portal_db?selected=3
Fore more related links, take a look at the following link.
http://syedracdba.wordpress.com/2008/03/24/list-of-useful-links-for-oracle-rac/
Regards,
Sabdar Syed,

SE 11g2 RAC in AIX

Hi.
Can I use Oracle 11g R2 (SE) RAC on AIX platform if one node on processor "POWER 6" and second node on processor "POWER 7"?
Regard
Spencer

Ty Helios:
I read this documents before post thread and hasn't found the answer to question about different processor within cluster.
Ty Werner:
Please post always a 4-digit version number, not only Oracle marketing labels.Oracle Standard Edition Database 11.2.0.1.0.
11.2.0.2 is certified for Single Instance ONLY Can you post link on documentation about this ?....
In general I prefer same configuration in a RAC environment, even if some differences are tolerated. If one node is much more powerful than the other(s), the >whole internal RAC handling is likely confused.
Technically it's possible to install 11.2.0.1 in such an environment.Thanks for the help. It's nice.
Regard
Spencer

RAC on AIX

Does RAC on AIX require HACMP or GPFS?. I think these are licensed products of IBM. Can't I use CRS without HACMP or GPFS?.
OS: AIX 6.1
DB : 10.2.0.4

Hi Boochi,
Yes. It is possible!
See on http://download.oracle.com/docs/cd/B19306_01/install.102/b14201/storage.htm#sthref602
You must use raw devices to store OCR and Voting disks and ASM to store database files
Regards,
Rodrigo Mufalani
htp://mufalani.blogspot.com

What is restriction on HOSTANEM as a name to install ORACLE RAC on AIX

Hi all..
we plan to install new Oracle RAC on AIX 64 bit with 6.1 version . we need to know what is restriction on hostname ..like it should not contain dash character or not exceed X Character ...
Best Regards,
Mohammed

Check if this thread is relevant
Single NIC card and RAC ???
Thanks,
Ajay More
http://www.moreajays.com

Diffrence between 10g R1 RAC and 10g R2 RAC

Good day to all,
Any one here knows the diffrence between 10g R1 RAC and 10g R2 RAC in terms of Installation , Backup and recovery , Performance tunning and more ..............
Please this treat this information is urgent
Cheers
Syed

Please this treat this information is urgentOk, then what about the New features doc of 10gR2 reading urgently :
http://download.oracle.com/docs/cd/B19306_01/server.102/b14214/chapter1.htm#NEWFTCH1
Nicolas.

10g R2 RAC in AIX

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