What advantages/disadv to having a none-rac db datafiles on rac clusterware

Hello,
We have a rac 10.2.0.3 with ocfs2 files on linux 4. We want to create a none-rac database on one of the rac nodes. The none-rac 10.2.0.4 is in its own new separate oracle home. Would it be a bad idea to use the existing ocfs2 mountpoints for the none-rac datafile locations? What would be adv/dis-adv to using ocfs2 for none-rac database files? Thank you.

I will disagree of if a non-RAC database should use CFS or not. Since the file systems in use are clustered I see no reason to use a non-clustered file system and by using a CFS should the server the database is built on fail you can with a few minor edits start the database on the other node. If you used a traditional file system to hold the non-RAC database then its data files would not be accessible to the remaining node.
Placing the Oracle database on CFS then starting it from another node in the advent of failure is one of the early high availability (quick recovery) methods. This kind of set up was not uncommon in the VMS (DEC) world back in the late 1980's and early 1990's.
Also what if at a future data you determine you want to convert the database to RAC? It will be easier if the database is already on a CFS.
IMHO -- Mark D Powell --

Similar Messages

The CSSD does not start automatically on Non-RAC - AIX 5L

Hi all,
Database: Oracle 10.2.0.4
O.S AIX 5.3 TL 10
I am facing a problem with the CSSD Non-RAC/Clusterware.
When we restarted the server the service CSSD does not start automatically and there is no relevant messages in the log files of CSSD.
Running the "localconfig reset $ORACLE_HOME", execute successfully but does not start the CSSD.
Running "/etc/init.cssd start" - does not work, nothing happens when we run it
I manually ran "/etc/ init.cssd run" and the service CSSD (ossd.bin) was started without errors.
No errors on errpt from AIX.
I've opened a SR but I am waiting for response from Oracle.

Hi,
I believe this problem is not with Oracle, but in AIX.It may be that one process that is starting on boot is holding the other process. You need to identify what is process/application.
Check the process on inittab that are already active and which are inactive they should be active.
One clue: Is very common process that is initiated in wait mode hold the boot server.
wait
When the init command enters the run level that matches the entry's run level,
start the process and wait for its termination.
All subsequent reads of the /etc/inittab file while the init
command is in the same run level will cause the init command to ignore this entry.http://publib.boulder.ibm.com/infocenter/aix/v6r1/index.jsp?topic=/com.ibm.aix.files/doc/aixfiles/inittab.htm
Regards,
Levi Pereira

Best way to have resizeable LUNS for datafiles - non RAC system

All,
(thanks Avi for the help so far, I know its a holiday there so I wait for your return and see if any other users can chip in also)
one of our systems (many on the go here) is being provided by an external vendor - I am reviewing their design and I have some concerns about the LUN's to house the datafiles:
they dont want to pre-assign full size luns - sized for future growth - and want more flexibility to give each env less disk space in the beginning and allocate more as each env grows
they are not going to use RAC (the system has nowhere near the uptime/capacity reqs - and we are removing it as it has caused enormous issues with the previous vendors and their lack of skills with it - we want simplicity)
They have said they do not want to use ASM (I have asked for that previously I think they have never used it before - I may be able to change their minds on this but they are saying as not RAC not needed)
but they are wondering how they give smaller luns to the env and increase size as they grow - but dont want to forever be adding /u0X /u0Y /u0Z extra filesystems (ebusiness suite rapidclone doesn't like working with many filesystem anyway and I find it unelegant to have so many mount points)
they have suggested using large ovm repo's and serving the data filesystems out of that (i have told them to use the repo's just for the guest OS's and use direct phy's attached luns for datafiles (5TB of them)
now they have suggested creating a large LUN (large enuogh for many envs at the same time [dev / test1 / test2 etc]) .... and putting OCFS2 on it so that they can mount it to all the domU/guest's and they can allocate space as needed uot of that:
so that they have guests/VM's (DEV1 - DEV2 - TEST1 say) (all seperate vm's) and all mounting the same OCFS2 cluster filesystem (as /u01 maybe) and they can share that for the datafiles under a sep dir so that each DB VM would see:
/u01/ and as subdirectories to that DEV1 DEV2 TEST1 so:
/u01/DEV1
/u01/DEV2
/u01/TEST1
and only use the right directory for each guests datafiles (thus sharing the space in u01(the big LUN) as needed per env)....
i really dont like that as each guest is going to have the same oracle unix user details and able to write to each other dir's - id prefer dedicated LUNS for each VM - not mounted to many VM's
so I am looking for a way to suggest something better....
should I just insist on ASM (but this is a risk as I fear they are not experienced with it)
or go with OEL/RHEL LVM and standard ext filesystems that can be extended - what are the risks with this? (On A Linux Guest For OVM, Which Partitions Can Be LVM? [ID 1080783.1]) - seems to say there is little performance impact
or is there another option?
Thanks all
Martin
Edited by: Martin Brambley on 11-Jun-2012 08:53

Martin, what route did you end up going?
We are about to deploy several hundred OEL VMs that are going to run non-RAC database instances. We don't plan to use ASM either. Our plan right now is to use one large 3TB LUN virtual disk to carve out the operating system space for the VMs and then have a separate physical attached LUN for each VM that will host a /u01 filesystem using LVM. I have concerns with this as we don't know how much space /u01 will ultimately need and if we end up having to extend /u01 on all of these VMs, that sounds like it will be messy. Right now I've got 400 separate 25gb LUNs presented to all of my OVM servers that we plan to use for /u01 filesystems.

OCFS2 in a non-RAC environment

Here's a question I've been batting around with a sysadmin. I thought I'd run it past this group.
We're spec'ing out the hardware for a very large Oracle database (3+ TB) running on Linux. This will be a single, non-RAC instance. This particular SA has very bad feelings about the ext3 filesystem (I am not exactly sure what his objections are). He has heard about ocfs2 and wonders if it would be superior to ext3.
What do you think? Would ocfs2 be appropriate in a non-clustered environment? Can you suggest any arguments for or against this approach?
Thanks, I appreciate any thoughts anyone might have.

Note that paper was written in 2004, and their tests used Pentium III processors. The OS was RHAS 2.1 and their kernel was 2.4.9
I'm not saying that invalidates the paper's conclusions, but I'm certainly saying you'd have to be very careful indeed in assuming that conclusions drawn from that combination of hardware and software had anything much to say about today's quad cores, multi-gigabyte RAM, kernel 2.6.x setups.
I'm concerned when I see their graphs on page 8: no axis scales in either x or y directions. If they're going to come to the conclusion that ext2/3 performance tails off, it would be nice to know whether it does so when the number of users hits 10, 50, 100, 500 or whatever, wouldn't it? But you can't tell anything from their graphs on that score.
And I don't see any mention of them adjusting the buffer cache when using raw, which (having just abolished the file system cache) is something you should sensibly do when making such comparisons.
And, of course, they were testing OCFS not OCFS2, so again... the applicability of anything concluded in that paper to today's situation is highly questionable, at least in my mind. But I do note that OCFS with "high numbers" of users ended up clobbering the CPU to death, whereas ext2/3 didn't...
And they seem to claim that transactions per second levelled out with ext2/3 because they hit a lot of free buffer waits -and there are ways of dealing with them that don't involve getting rid of the file system! The fact that they didn't report a lot of write complete waits as well as free buffer waits might indicate that they just need more DBWRs, and not a switch of file system, for example.
Anyway... short answer is, I wouldn't read too much into that report, which looks to me to be poorly devised and written and very much 'of its time and place' with little general applicability outside of that.

ASM in a non-RAC environment

Gurus,
what are the advantages, if any, of running ASM in a non-RAC environment?
Thanks.

Any raid (that actually provides multiple disks in a
LVM) will nullify the performance gains of raw that
are associated with disk head contention.
Any disk subsystem with front-end RAM cache will
nullify the rest of the performance gains of raw
disk.
Any 'RAID-5 is good' argument under a database
assumes large and efficient cache.Unfortunately, we can't just discount RAID-5, since it is far too cost-efficient an option these days, with 10, 20, 30+ TB databases. Plus, the storage vendors actually make it efficient enough that it performs almost as well as RAID 1+0.
Multiple disks on the storage subsystem and RAM caches (for reads and writes) are still important and valuable performance enhancements. Remember that your storage subsystem is much more efficient at this than your database or server (since it's designed to do it!). True, it doesn't have knowledge of the database files, their content, and their usage, but you do, and can therefore intelligently configure the subsystem and place the data files.
ASM does nothing more intelligent than stripe the data across all of the available disks. The best part about it is the ability to dynamically grow the groups. The problem with it is that it thwarts the read-ahead cache of the storage subsystem. And, while Oracle will intelligently 'read-ahead', it can't optimize where the heads are on the disk, or take into consideration the 10 other servers accessing the same storage subsystem.
The problem with ASM doing the striping is that, for large databases, you will typically have hundreds of disks underneath the covers. If you gave the OS and then Oracle that many devices, what do you think would happen? It would step all over itself and seriously impair your ability to access the devices in parallel. Whereas, if you group 4 or 8 devices together, the storage subsystem will access them together in parallel for the OS.
So, don't discount your storage box... But yeah, use RAID 1+0 rather than RAID-5 (4,3) when possible!

Instnce name in non-RAC environment

Hi!
In non-RAC environment V$INSTANCE.INSTANCE_NAME does not actually displays the name of the instance,that was set in INSTANCE_NAME parameter.
It always displays DB_NAME instead.
Is it any way to get instance_name that has service user connected to in this environment?
LSNRCTL for 32-bit Windows: Version 10.2.0.4.0 - Production on 28-JAN-2010 09:16:25
Copyright (c) 1991, 2007, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=vegas)(PORT=1524)))
STATUS of the LISTENER
Alias LISTENER
Version TNSLSNR for 32-bit Windows: Version 10.2.0.4.0 - Production
Start Date 28-JAN-2010 09:15:36
Uptime 0 days 0 hr. 0 min. 48 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File D:\oracle\db\product\10.2.0\network\admin\listener.ora
Listener Log File D:\oracle\db\product\10.2.0\network\log\listener.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=vegas)(PORT=1524)))
Services Summary...
Service "EMCOR" has 1 instance(s).
Instance "INST0", status READY, has 1 handler(s) for this service...
Service "EMCOR_XPT" has 1 instance(s).
Instance "INST0", status READY, has 1 handler(s) for this service...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "RESXDB" has 1 instance(s).
Instance "INST0", status READY, has 1 handler(s) for this service...
Service "SRV1" has 1 instance(s).
Instance "INST0", status READY, has 1 handler(s) for this service...
Service "SRV2" has 1 instance(s).
Instance "INST0", status READY, has 1 handler(s) for this service...
The command completed successfully
And SQLPLUS said
C:\Documents and Settings\oradba>sqlplus
SQL*Plus: Release 10.2.0.4.0 - Production on Thu Jan 28 09:44:59 2010
Copyright (c) 1982, 2007, Oracle. All Rights Reserved.
Enter user-name: emcos@emcor_srv2
Enter password:
Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
09:45:04 EMCOS@emcor_srv2 >select name from v$database;
NAME
EMCOR
Elapsed: 00:00:00.00
09:45:07 EMCOS@emcor_srv2 >select instance_name from v$instance;
INSTANCE_NAME
emcor
Elapsed: 00:00:00.01
09:45:21 EMCOS@emcor_srv2 >select service_name from v$session where sid=(select unique sid from v$mystat);
SERVICE_NAME
SRV2

Hemant K Chitale wrote:
The documentation on INSTANCE_NAME in the 10gR2 Reference says :
"In a single-instance database system, the instance name is usually the same as the database name."
(this after
"In a Real Application Clusters environment, multiple instances can be associated with a single database service. Clients can override Oracle's connection load balancing by specifying a particular instance by which to connect to the database. INSTANCE_NAME specifies the unique name of this instance.")
This would imply that setting INSTANCE_NAME in non-RAC is ignored. The usage of the word "usually" is weak.
Hemant K ChitaleBut what do says lsnrctl - it says that it is not weak
11:33:28 SYS@EMCOR_SRV1 >show parameter instance_name
NAME TYPE VALUE
instance_name string INST0
11:33:36 SYS@EMCOR_SRV1 >host lsnrctl status
LSNRCTL for 32-bit Windows: Version 10.2.0.4.0 - Production on 28-JAN-2010 11:33:50
Copyright (c) 1991, 2007, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=vegas)(PORT=1524)))
STATUS of the LISTENER
Alias LISTENER
Version TNSLSNR for 32-bit Windows: Version 10.2.0.4.0 - Production
Start Date 28-JAN-2010 09:15:36
Uptime 0 days 2 hr. 18 min. 14 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File D:\oracle\db\product\10.2.0\network\admin\listener.ora
Listener Log File D:\oracle\db\product\10.2.0\network\log\listener.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=vegas)(PORT=1524)))
Services Summary...
Service "EMCOR" has 1 instance(s).
Instance "INST0", status READY, has 1 handler(s) for this service...
Service "EMCOR_XPT" has 1 instance(s).
Instance "INST0", status READY, has 1 handler(s) for this service...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "RESXDB" has 1 instance(s).
Instance "INST0", status READY, has 1 handler(s) for this service...
Service "SRV1" has 1 instance(s).
Instance "INST0", status READY, has 1 handler(s) for this service...
Service "SRV2" has 1 instance(s).
Instance "INST0", status READY, has 1 handler(s) for this service...
The command completed successfully
11:33:50 SYS@EMCOR_SRV1 >select sys_context('USERENV','INSTANCE_NAME') from dual;
SYS_CONTEXT('USERENV','INSTANCE_NAME')
emcor
Elapsed: 00:00:00.00
11:34:42 SYS@EMCOR_SRV1 >select service_name from v$session where sid=sys_context('USERENV','SID');
SERVICE_NAME
SRV1
Best regards, Sergey

Configuring multiple listeners in a non-RAC env.

Hi,
Our database is being made as many as 35 requests per second by the application during peak hours. This is causing the listener to die. Metalink suggested to configure more listeners so that they can balance the load. When I tried to configure 2 listeners on the local server, one of the listeners are not working propoerly.
I am posting the listenerr.ora and their statuses along with the error messages here. Can someone help me understand the problem?
Listener.ora
LISTENER2 =
(DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = dbdev.website.com)(PORT = 1522))
SID_LIST_LISTENER2 =
(SID_LIST =
    (SID_DESC =
      (SID_NAME = TESTDB)
      (ORACLE_HOME = /u02/app/oracle)
      (PROGRAM = extproc)
LISTENER1 =
(DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = dbdev.website.com)(PORT = 1521))
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
SID_LIST_LISTENER1 =
(SID_LIST =
    (SID_DESC =
      (SID_NAME = PLSExtProc)
      (ORACLE_HOME = /u02/app/oracle)
      (PROGRAM = extproc)
lsnrctl status <listener_name>
oracle@ DBDEV $ lsnrctl status LISTENER1
LSNRCTL for Linux: Version 10.2.0.3.0 - Production on 02-AUG-2009 20:08:03
Copyright (c) 1991, 2006, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=dbdev.website.com)(PORT=1521)))
STATUS of the LISTENER
Alias                     LISTENER1
Version                   TNSLSNR for Linux: Version 10.2.0.3.0 - Production
Start Date                29-JUL-2009 22:28:31
Uptime                    3 days 21 hr. 39 min. 32 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /u02/app/oracle/network/admin/listener.ora
Listener Log File         /u02/app/oracle/network/log/arogya1.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=dbdev.website.com)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC0)))
Services Summary...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "TESTDB" has 1 instance(s).
Instance "TESTDB", status READY, has 1 handler(s) for this service...
Service "TESTDB_XPT" has 1 instance(s).
Instance "TESTDB", status READY, has 1 handler(s) for this service...
The command completed successfully
oracle@ DBDEV$ lsnrctl status LISTENER2
LSNRCTL for Linux: Version 10.2.0.3.0 - Production on 02-AUG-2009 20:08:07
Copyright (c) 1991, 2006, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=dbdev.website.com)(PORT=1522)))
STATUS of the LISTENER
Alias                     LISTENER2
Version                   TNSLSNR for Linux: Version 10.2.0.3.0 - Production
Start Date                31-JUL-2009 02:37:10
Uptime                    2 days 17 hr. 30 min. 56 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /u02/app/oracle/network/admin/listener.ora
Listener Log File         /u02/app/oracle/network/log/arogya2.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=dbdev.website.com)(PORT=1522)))
Services Summary...
Service "TESTDB" has 1 instance(s).
Instance "TESTDB", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully
ps -ef | grep tnslsnr
oracle@ DBDEV $ ps -ef | grep tnslsnr
oracle    7951     1 0 Jul29 ?        00:00:00 /u02/app/oracle/bin/tnslsnr LISTENER1 -inherit
oracle   18080     1 0 Jul31 ?        00:00:00 /u02/app/oracle/bin/tnslsnr LISTENER2 -inherit
Client message
C:\Oracle\product\10.1.0\Client_1\BIN>sqlplus system/manager@asridb1
SQL*Plus: Release 10.1.0.2.0 - Production on Mon Aug 3 09:32:18 2009
Copyright (c) 1982, 2004, Oracle. All rights reserved.
Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.3.0 - Production
With the Partitioning, OLAP and Data Mining options
SQL>
SQL> Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.3.0 - Production
With the Partitioning, OLAP and Data Mining options
C:\Oracle\product\10.1.0\Client_1\BIN>sqlplus system/manager@asridb2
SQL*Plus: Release 10.1.0.2.0 - Production on Mon Aug 3 09:32:25 2009
Copyright (c) 1982, 2004, Oracle. All rights reserved.
ERROR:
ORA-28547: connection to server failed, probable Net8 admin error
Enter user-name:Thanks,
Aswin.

ice_cold_aswin wrote:
But shared server is not always better than a dedicated server.I did not say it was - only that if you're expecting loads of brand new connection requests to be services fast by the Listener, then shared server will be significantly faster than dedicated server.
Frequency of connections may be handled better by the use of shared server, but how about holding thousands and thousands of connections and serving all their requests by using some preemptive mechanism? Many years ago, I configured an Oracle 8i instance on my desktop PC with shared server and told the Java guys to try their worst. See how many threads they can open against my desktop PC instance versus the big HP server instance. The latter was using dedicated server and they were kind of thinking that this was somehow better than shared server. They could open less than a few hundred connections to the big server. They opened over a 1000 connections to my desktop instance.
Shared Server is and never was a poor and second choice to Dedicated Server as some seems to suggest. It is extremely capable and ideally suited when dealing with a huge number of connections.
In our application, number of connections would reach thousands during peak hours and large number of REALLY BIG queries would be fired by each of them in a small time period. I would say these BIG QUERIES can be termed as OLAP queries, while our main stream application is a OLTP system. It must be apparent to you by now, our database (non-RAC) is supporting an application that gives OLAP and OLTP queries at a very high frequency. A big query ito what? Resource footprint? Source code size of the query? Execution time of the query?
If you have 100's of OLAP type queries (complex and long running queries) hitting the server every few seconds, then your server will die. Unless you are running some seriously expensive hardware.
That aside - it is only a sensible approach to use shared server in an environment that deals with 1000's of OLTP type connections. And if there is an OLAP mix too, then configure those connections to request dedicated server connections.
Why? The shared server scales a lot better than dedicated server. And scalability is what you want in this type of environment.

Non RAC to RAC using RMAN

Hi All Oracle Guru's!
I have an environment right now which consists of non rac and rac databases.
What I want to do now is duplicate my non rac database going to the rac instance using RMAN duplicate. The rac instance is freshly configured.
How can this be done? Is there any other options? Im using 10gr2.
Please guide me.
Thanks in advance!

cmadiam82 wrote:
Hi All Oracle Guru's!
I have an environment right now which consists of non rac and rac databases.
What I want to do now is duplicate my non rac database going to the rac instance using RMAN duplicate. The rac instance is freshly configured.
How can this be done? Is there any other options? Im using 10gr2.
Please guide me.
Thanks in advance!Do an RMAN restore on node 1 for example. that should work.

How to create a standby redolog from rac to non rac ??

Hi,
How to create a standby redolog from rac to non rac DR setup..???
in rac we can create with specifying thread number for each instances..... but this will be replicating to standby ....so how this will act/create on single DR??
pls help

854393 wrote:
Thanks Shivanandha,
(maximum number of logfiles for each thread + 1) * maximum number of threads
Using this equation reduces the likelihood that the primary instance's log writer (LGWR) process will be blocked because a standby redo log file cannot be allocated on the standby database. For example, if the primary database has 2 log files for each thread and 2 threads, then 6 standby redo log file groups are needed on the standby database.In maximum performance mode you can keep same number of redo logs but having one more redo log member for each thread is recommended and mandtory for other protection modes.
How to create a standby redolog from rac to non rac DR setup..???
in rac we can create with specifying thread number for each instances..... but this will be replicating to standby ....so how this will act/create on single DR??pls help
Yes, even your DR is RAC or non-RAC, you must have both threads, because each instance information exist on own thread, So to perform redo transition from both the instances, you must have both standby redo log threads even though if it is non an RAC DR.
Hope This helps.

Finding the order of archive logs in RAC to NON-RAC manual cloning

Hi,
I am in the process of automating a RAC to NON-RAC clone using traditional method [ not using RMAN ].
Here are the steps:
On Source:
Record the sequence number and thread of the instance
put the database in begin backup mode
copy the files
disable the backup mode
record the sequence number and thread of the instance
prepare the order of the archive logs which will be needed for recovery ==> Here is where I need help
On Target:
Restore the backup
Issue recovery using the order of archive logs identified ==> Failing as order is not correct.
I am finding the archive logs based on FIRST_TIME# and preparing the order which is not correct. I think i should be using SCN but not sure what should be the criteria.
Could you please let me know on what basis we can find the order of the archive logs which will be asked during the recovery ?
Your quick response is appreciated. Thanks in advance for your help.
Thanks
Suneel

Yes, When we execute recover database using backup controlfile until cancel, will prompt for the redo log sequences.
But as i mentioned before, I am trying script everything and cannot manually enter the sequence numbers required. I need to know the archives and thread it is going to ask [ in what order as well ] so that recovery command can be scripted in shell.
Please let me know if there is a away to find the order of archive logs which needs to be applied to recover [ if this is a NON-RAC, we can simply go with the sequence numbers but since it is a RAC, i should know the thread number as well ].
Thanks

Steps to Convert R12 Non-Rac to RAC database with ASM

dear All,
We have following environment.
R12.0.6 with a non RAC 11.2.0.2 database on on AIX (64bit). Datafiles are stored local filesystem. We want to do the following.
Migrate the database file to ASM
convert database Non RAC to RAC
we have gone through many oracle support documents but were unable to decide which path we should adopt. Any body who has done similar activity; please share only highly level steps. No step by step Instructions are needed. e.g. Install Grid Infrastructure (for single instance or the one which comes with cluster home???????), Move datafiles to ASM etc etc
Please make sure the steps are for 11gR2 and EBS R12.
Best Regards,

we have gone through many oracle support documents but were unable to decide which path we should adopt. Any body who has done similar activity; please share only highly level steps. No step by step Instructions are needed. e.g. Install Grid Infrastructure (for single instance or the one which comes with cluster home???????), Move datafiles to ASM etc etc
Please make sure the steps are for 11gR2 and EBS R12. The steps in [ID 823587.1] which is referenced above should be sufficient (from your post, I understand that you have covered the steps in this doc) -- What exactly you have issues with?
Thanks,
Hussein

Oracle EBS Cloning - RAC to Non-RAC on windows 2008

Kindly note that my Client is currently running Oracle E-Business Suit R12.1.1 + 11.2.0.2 on Windows
Server 2008R2 on RAC + ASM.
I have been requested to perform the Clonning of the Production to Test Enviroment from RAC to non
RAC?
I have gone through the note id Certified RAC Scenarios for E-Business Suite Cloning [ID 783188.1] which
says that Oracle E-Business Suit R12.1.1 is not supported for RAC to RAC or RAC to non RAC Clonning?
Please advise whether the Clonning is possible from RAC to non RAC enviroment on Windows 2008 R2 for
R12.1.1 + 11.2.0.2?
What is the possible risk if I go ahead with the same Oracle non supported Enviroment ?

R12 clone with RMAN auxiliary db.

Non-RAC Oracle Database Cluster 10g

We are upgrading a 9i non-RAC cluster to a similar 10g configuration (LINUX) and are looking around at failover software. For those running this configuration, I would greatly appreciate some suggestions / recommendations for what cluster management software you use. Thanks.
Message was edited by:
j_70

I have worked with this kind of setup once and we used HP cluster for that I think it was "HP cluster/data guard" not sure the exact name. But it will not provide transparent failover feature meane in failover, the connected users have to reconnect.
Why RAC is not an option for you?? is it cost or something else?
Daljit singh

How to apply archivelogs from 2 node rac to non-rac

Is there any way to apply the archivelogs from 2 node RAC to sinlge node non-rac instance while migrating RAC to non-rac.
Could anyone clarify it?
-Shanlee

There's no "different way".
Each instance in RAC write's to it's own Redo Thread -- so each has it's own set of ArchiveLogs. In the log_archive_format specification %t is the thread identifier.
Oracle needs the ArchiveLogs from both Threads of the 2 node RAC. When you issue a RECOVER DATABASE, it applies them in the correct (interleaved) sequence.
What you have to do is to ensure that the ArchiveLogs of both threads are available on the new server.
Hemant K Chitale
Edited by: Hemant K Chitale on Jun 1, 2011 5:09 PM

Restore RAC database from non-RAC source - EBS R12.1.1

We have restored (PIT) a RAC database from a non-RAC (but ASM) source and I was wondering if that was a reasonable thing to do.
The reason I ask is that I seem to remember that in the upgrade to R12.1.1 the upgrade driver had a different list of jobs to do when the target was RAC vs when it was non-RAC... so is it possible the EBS R12.1.1 code is different for RAC (meaning we dont have the right code base in the DB since we restored a non-RAC source to a RAC destination)?
Disclaimer - I am NOT a DBA .. just trying to identify some potential problems we are troubleshooting.
Thanks in advance!
EBS R12.1.1
OEL 5
11gR2

We have a RMAN back up of the non-RAC database that was restored and PIT recovered on the RAC database.Is it a full database backup?
The "code" base I am referring to is all the db stored objects for R12 EBS .. database compiled code.Restoring the RMAN backup on the target node is not enough. Have you run AutoConfig or postclone? Does your instance know that this is a a single instance and not a RAC one?
I am nervous that there may be alternate versions of the code to run in RAC vs non-RAC .. for instance I know that some of the ASCP jobs use DBMS PIPES and that can be tricky with RAC and Concurrent Manager.. And when we did the upgrade to R12, pointing it @ RAC generated more and different jobs than when it was not pointed @ RAC .. so SOMETHING was different according to the APPS ADPATCH/ADADMIN utilities.Please explain in details what is the purpose of doing this restore and what exactly you are trying to achieve. What cloning procedure you follow to refresh the target instance?
Thanks,
Hussein

What advantages/disadv to having a none-rac db datafiles on rac clusterware

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