10gR2 RAC SE and OCFS2

Hi All,
I have been trying to look at certification for a 10gR2 SE RAC build on RHEL4. In particular OCFS2 and voting, OCR Quorum disk.
I was told some time ago that having OCR, voting etc is not supported when they are in OCFS2 with an SE database. I have had a look on metalink and various certification documents appear to contradict each other. Does anyone have a definitive answer to this conundrum.
regards
Alan

Which certification documents are you referring too? If they are wrong Oracle needs to fix them.
And as far as I know, you can store the OCR and voting disks on an OCFS2 file system (and in 11GR2 you can even store them in ASM I think). The datafiles must be managed by ASM otherwise will you violate the SE license and you must also use Oracle CRS as the clusterware.
-Andy

Similar Messages

Can we have separate 10gR2 RAC CRS and 11gR2 RAC CRS homes on same Unix s

We'd like to test the upgrade of our 10gR2 RAC databases to 11gR2 RAC.
We have six databases on the same server and want to install a separate 11g RAC stack (11g CRS, 11g ASM, 11g RDBMS) and upgrade each 10g database from 10g RAC stack on same server (10g CRS, 10g ASM, 10g RDBMS) . Is it ok to have 10g CRS home and 11g CRS home same server? If not, how best to upgrade without buying more hardware?
Thanks in advance,
Lou

In more detail, the main issue/question is whether there can be 2 Oracle CRS homes on the same server i.e. separate 10gR2 and 11gR2 CRS homes residing on the same server for the purposes of (gradually) upgrading all Oracle RDBMS homes from 10g RAC to 11g RAC.
Can there be? What would be the implications for the OCR and voting disk? In our case 10g CRS has OCR and Voting Disk on raw devices. In 11gR2, these would need to be migrated/upgraded/stored in ASM, right?
We have 6 10g rdbms homes in addition to the one 10g CRS home and one 10g ASM home. To upgrade can we
- Install 11gR2 CRS in a separate home (this would now include ASM as well)
- Install 11gR2 RDBMS home
- Upgrade one of the 6 10g databases while leaving the others untouched as 10g databases in the separate 10g CRS, 10g ASM stack?
Any ideas, pointers greatly appreciated.
Thanks,
Lou

10gR2 RAC, more 10gR2 RAC, DataGuard and Grid Control on Windows 2003

Hello all,
I have never used GC to implement DG between two different RAC installations, so if i could just a few questions to the experts.
1) It seems that the Grid Control GUI of the DG broker cannot created a RAC instance for physical/logical standby. You have to use the third option from the wizzard, the one about the previously created standby database.
Can i hope that as long as i create the RAC standby i will still be able to work with GC?
2) Currently, when i try to create a physical standby from my primary RAC instance, i get a Java exception when i try to perform the backup and message like "Index: 3, Size: 3". doesnt really help... Does anybody know what this means?
3) Once i have the whole solution implemented, will the two clusters require the presence of the Grid Control machine to "talk to each other"? Ie what will happen if i shutdown the Grid Control machine?
GC: Grid Control
DG: Data Guard
RAC: Real Application Clusters

well i skipped Grid Control all together and went for an all command-line approach and ... it works! Maybe i shall setup GC now to see graphically what i did, but i found more confidence working the traditional way, both for creating the standby backup with RMAN and starting up the initial standby instance, registering it with the clustered ASM and adding more stby instances with srvctl as i needed.
I found a great ally in all the documents listed in the MAA section of oracle.com
and i could only suggest them (at least until 10.2 version of GC comes out)
http://www.oracle.com/technology/deploy/availability/htdocs/maa.htm

[10gR2] RAC database and scheduler!!

Hi, all.
I have a 2 node RAC database.
And I have a plan to export a schema at a specific node(Node1),
because the disk for dump files is attached to Node1(not Node2).
I will do that by using "expdp utility" and scheduler.
However, how can I force oracle to do that ALWAYS at the Node1?
Are there any tips??
Thanks and Regards.
Message was edited by:
user507290
Message was edited by:
user507290

dbms_job has that functionality(not dbms_scheduler).
1. dbms_job.submit procedure has an parameter called "instance". By setting this parameter, you can force your job to be executed on the instance you specifed.
SQL> dbms_job.submit(..., instance=>1);
2. dbms_job.instance procedure makes your ready-made job to be executed on the specific instance.
SQL> dbms_job.instance(:job_no, 1);
Unfotunately, dbms_scheduler is wholy new feature and re-designed from dbms_job. Oracle just dropped that kind of functionality from dbms_scheduler
and implemented another approach which is called "instance stickiness".

Oracle 10gR2 RAC / Dataguard on Linux Redhat 4.2 X86_64 and ASM / OCFS2

Hi All,
Well don't know if this is bleeding edge or not, but wanted to know if anybody has a system running the following setup and if there are any issues like some components are not certified on 64 bit (e.g is OCFS2)
We are in process of building a system with
Oracle RAC on 10gR2 on a 64 bit Linux OS 4.2 (2.6.9-22.ELsmp)
The system has a EMC CX500 and we are going to use ASM for the datafiles and OCFS2 for the Voting Disk and OCR.
We are also going to have a single (no RAC) Physical Dataguard instance at another site also using ASM.
We have seen that the OEM Grid Controller and agents are not supplied on x86_64
so we can't use it in a 64bit environment. (are we correct)
Anybody with suggested alternatives with the kit we have or a strong suggestion that 32 bit for RAC and Dataguard are best
Thanks in advance
John

I have a similar configuration, 3 nodes of SunFire X4100 (dual opteron), on RedHat 4 ES Update 2 using Dell/EMC CX300.
I am using OCFS2 for data and voting disks.
We had a couple of freeze-up (total node lockup) and I could not figure out what was wrong (this happens randomly).
Anybody have any idea where should I look for possible reasons?

Guidelines for SGA and PGA tuning for 10gR2 RAC and ASM ?

I am looking for tuning information on SGA and PGA tuning for Oracle 10g (10.2) RAC and ASM for a 4TB OLTP and DSS mixed environment on Solaris 10 platform.

We are running Solaris 10 SPARC 64 bit with Oracle 10gR2 RAC Enterprise Edition and ASM on Sun servers with 32GB of RAM for memory for a 4TB OLTP database.
It is in design phase so I do not have an existing AWR or Statspack report yet. Is there a best practices guideline on how to size parameters for the SGA (ie: shared_pool_size, etc) and PGA for this environment from Oracle?

10gR2 RAC on Solaris 10

Hi,
I am looking for "step by step install & configure" guide to setup 10gr2 RAC on Solaris 10.
I got the following Doc "ID: Note:317257.1" from metalink. Looks like I need to configure Solaris 10 containers and Solaris Zones for 10g RAC.
Is there another way to setup 10gr2 RAC on Solaris 10 without using the Solaris 10 containers just like (Solaris 9 or plain OS)?
Any help would be appreciated.
R-

Thanks for all your inputs. I finally got 10g RAC installed and running.
I learned that there is no way to install Oracle software and configure ASM during installation. I had to install “Software Only” then configure ASM at the later time, then that will work.
Good luck to you all.
:-)R

Solaris 10 + Oracle 10gR2 RAC question

Hello everyone
Has anyone come across the case where the CRS services of Oracle cause
the public interface to get turned off and then restored at random
time intervals? To elaborate, we have a 2 node cluster database.
Solaris 10, Oracle 10gR2 RAC with patch 10.2.0.3 applied. No SUN
clustering is involved. When the cluster software is down (nodeapps,
asm, database instances all down) /var/adm/messages show nothing. When
we start nodeapps on the 2 nodes(thus initiating some form of
communication between the nodes), at random time intervals we get
"interface ce0 turned off and interface ce0 restored" in /var/adm/
messages. When we check the status of the RAC, we see that one node's
vip has been assigned to the other. This on/off behaviour of the NIC
can be eliminated only if we continuously PING it from a another
client in the network.
As a matter of fact, the RAC and the RDBMS work perfectly when we keep
pinging the 2 nodes from an other client on the network. We even
managed to run a long batch job, distributed on cluster managed
services on the 2 instances, and it completed after 9 hours without
any problems.
Does anyone have a hint on this behaviour? Is there some sort of
timeout for the network cards? Some power saving features? Googling
around I came across the new Containers feature available on Solaris
10. Is there a way that I can verify that either RAC or the RDBMS is
running in "container" mode ( since the solaris and Oracle
installation was not performed by me)? Any other ideas?
Thank you for reading

Im an Oracle guy - not the SA type -
But on ours - the SA configured this cluster incorrectly. We use veritas. instead of making ipmp groups for the interfaces - he built the cluster according to veritas docs. That is - he has two publics - on difference interfaces and different privates on different interfaces. oracle can only two interfaces - no matter if its a ipmp group or a device name. one is used for private- the other is used for public - So sure the veritas cluster filesystems will survive - but the Oracle Cluster will not - nodes will reboot -
Is your system set up incorrectly as i described above? if it is - a quick test would be - turn down the other interfaces - and only leave the two interfaces you mention above up that you configured for Oracle CRS
This other sharp sa was able to go through the arp table and see duplicate IPs - and the routing was attempted via an interface that oracle doesnt see. You can not define two different interfaces public - and two different interfaces for private -

RHEL 4, 10g and OCFS2 Installation Error: mkfs.ocfs2

Hello,
I am working on the a Oracle RAC installation and I am getting an strange error
while installing OCFS2. The error I am getting occurs while performing a mkfs.ocfs2 (See details below).
This is the command and error I am getting:
Command: # mkfs.ocfs2 -b 4K -C 32K -N 4 -L oradatafiles /dev/sda1
Error: Writing system files: mkfs.ocfs2: Could not write: Input/output error
Can some give me the origin of the error?
Thanks,
Fritz
[email protected]
+++++++++++++++++++++ D E T A I L S ++++++++++++++++++++++
# uname -a
Linux gam-db-p-01 2.6.9-22.0.1.ELsmp #1 SMP
Tue Oct 18 18:39:02 EDT 2005 x86_64 x86_64
x86_64 GNU/Linux
# fdisk -l
Disk /dev/cciss/c0d0: 72.8 GB, 72833679360 bytes
255 heads, 63 sectors/track, 8854 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/cciss/c0d0p1 * 1 13 104391 83 Linux
/dev/cciss/c0d0p2 14 8854 71015332+ 8e Linux LVM
Disk /dev/sda: 21.5 GB, 21512585216 bytes
64 heads, 32 sectors/track, 20516 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Device Boot Start End Blocks Id System
/dev/sda1 1 20516 21008368 83 Linux
Disk /dev/sdb: 21.5 GB, 21512585216 bytes
64 heads, 32 sectors/track, 20516 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Device Boot Start End Blocks Id System
/dev/sdb1 1 20516 21008368 83 Linux
# ./o2cb status
Module "configfs": Loaded
Filesystem "configfs": Mounted
Module "ocfs2_nodemanager": Loaded
Module "ocfs2_dlm": Loaded
Module "ocfs2_dlmfs": Loaded
Filesystem "ocfs2_dlmfs": Mounted
Checking cluster ocfs2: Online
Checking heartbeat: Not active
# mkfs.ocfs2 -b 4K -C 32K -N 4 -L oradatafiles /dev/sda1
mkfs.ocfs2 1.0.3
Filesystem label=oradatafiles
Block size=4096 (bits=12)
Cluster size=32768 (bits=15)
Volume size=21512568832 (656511 clusters) (5252088 blocks)
21 cluster groups (tail covers 11391 clusters, rest cover 32256 clusters)
Journal size=33554432
Initial number of node slots: 4
Creating bitmaps: done
Initializing superblock: done
Writing system files: mkfs.ocfs2: Could not write: Input/output error

Hi,
I'm getting the same problem. My RAC nodes are actually virtual machines created with MS Virtual Server, and the ocfs2 disk is a shared SCSI virtual hard disk.
I'm getting the "Could not write: Input/output error" message when creating a ocfs2 partition.
Any suggestions would be appreciated.
Thanks,
Thom

10gR2 RAC installation: OUI forgets to create directory 'crs/auth' (BUG)

Hi,
We've got a new installed 10gR2 RAC cluster (2 nodes) on AIX. But there were several errors during startup of CRS (Cluster Ready Services).
The error log shows, that it couldn't write a special file (I guess a lock file).
So I just created the missing directory 'crs/auth' and anything works fine now.
This post is just for those who are looking for a solution for their non-working crs daemon. No need to answer.
But I suppose Oracle should log it as an installation bug, because the Universal Installer does not create this directory and so the CRS can not work.
Best regards
Sven

it looks like i hit a bug in crs 11.1.0.6 -> bug 6782573
becuase i can see in my /var/log/messages
Jul 30 00:53:07 rac1 logger: Oracle CRSD respawn disabled. Unsupported change in hostname.
Jul 30 00:53:08 rac1 logger: Oracle init script ceding reboot to sibling 10986.
Jul 30 00:53:08 rac1 logger: Oracle EVMD respawn disabled. Unsupported change in hostname.
Jul 30 00:53:12 rac1 logger: Cluster Ready Services completed waiting on dependencies.
Jul 30 00:53:13 rac1 logger: Cluster Ready Services completed waiting on dependencies.
Jul 30 00:53:14 rac1 logger: Running CRSD with TZ =
Jul 30 00:55:08 rac1 logger: Oprocd received graceful shutdown request. Shutting down.
Jul 30 01:58:07 rac1 logger: Oracle CSS family monitor shutting down gracefully.Jul 30 02:06:38 rac1 logger: Oracle EVMD respawn disabled. Unsupported change in hostname.

RHEL 4, 10g and OCFS2 Installation Error

Hello,
I am working on the a Oracle RAC installation and I am getting an strange error
while installing OCFS2. The error I am getting occurs while performing a mkfs.ocfs2 (See details below).
This is the command and error I am getting:
Command: # mkfs.ocfs2 -b 4K -C 32K -N 4 -L oradatafiles /dev/sda1
Error: Writing system files: mkfs.ocfs2: Could not write: Input/output error
Can some give me the origin of the error?
Thanks,
Fritz
[email protected]
+++++++++++++++++++++ D E T A I L S ++++++++++++++++++++++
# uname -a
Linux gam-db-p-01 2.6.9-22.0.1.ELsmp #1 SMP
Tue Oct 18 18:39:02 EDT 2005 x86_64 x86_64
x86_64 GNU/Linux
# fdisk -l
Disk /dev/cciss/c0d0: 72.8 GB, 72833679360 bytes
255 heads, 63 sectors/track, 8854 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/cciss/c0d0p1 * 1 13 104391 83 Linux
/dev/cciss/c0d0p2 14 8854 71015332+ 8e Linux LVM
Disk /dev/sda: 21.5 GB, 21512585216 bytes
64 heads, 32 sectors/track, 20516 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Device Boot Start End Blocks Id System
/dev/sda1 1 20516 21008368 83 Linux
Disk /dev/sdb: 21.5 GB, 21512585216 bytes
64 heads, 32 sectors/track, 20516 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Device Boot Start End Blocks Id System
/dev/sdb1 1 20516 21008368 83 Linux
# ./o2cb status
Module "configfs": Loaded
Filesystem "configfs": Mounted
Module "ocfs2_nodemanager": Loaded
Module "ocfs2_dlm": Loaded
Module "ocfs2_dlmfs": Loaded
Filesystem "ocfs2_dlmfs": Mounted
Checking cluster ocfs2: Online
Checking heartbeat: Not active
# mkfs.ocfs2 -b 4K -C 32K -N 4 -L oradatafiles /dev/sda1
mkfs.ocfs2 1.0.3
Filesystem label=oradatafiles
Block size=4096 (bits=12)
Cluster size=32768 (bits=15)
Volume size=21512568832 (656511 clusters) (5252088 blocks)
21 cluster groups (tail covers 11391 clusters, rest cover 32256 clusters)
Journal size=33554432
Initial number of node slots: 4
Creating bitmaps: done
Initializing superblock: done
Writing system files: mkfs.ocfs2: Could not write: Input/output error

Hi,
I'm getting the same problem. My RAC nodes are actually virtual machines created with MS Virtual Server, and the ocfs2 disk is a shared SCSI virtual hard disk.
I'm getting the "Could not write: Input/output error" message when creating a ocfs2 partition.
Any suggestions would be appreciated.
Thanks,
Thom

Oracle 10gR2 RAC - ASM question

Hi
I have a question regarding the ASM storage. Let says I have a system here running Oracle 10gR2 RAC and would like to add a new/extend the current DATA disk group with more disk space. How do I do that? will it affect the existing data stored inside there?

So to add a little more to the discussion. Let's say your storage administrator presents you a LUN and is nice enough to add a partition of say 7G. (/dev/sdo1).
Now you need to take /dev/sdo1 stamp it and alter your storage group.
For illustration purposes I shall use rac1 and rac2 as my dual instance RAC and add to the asm group ARCH.
As root on rac1
/etc/init.d/oracleasm createdisk ARCH2 /dev/sdo1
then run
/etc/init.d/oracleasm listdisks
to make sure ARCH2 shows up.
On rac2 you run
/etc/init.d/oracleasm listdisks
You don't see ARCH2 so then run
/etc/init.d/oracleasm scandisks
then
/etc/init.d/oracleasm listdisks
Now you should see ARCH2
Ok the asm stamps are in sync now.
Back to rac1
su - oracle
set ORACLE_SID to asm instance and use sqlplus
sqlplus / as sysasm
If you query V$ASM_DISK you will see your disk with a header_status of PROVISIONED
that's good ...
NOw while still in sqlplus
Let's bump up the asm_power_limit so rebalancing runs faster
alter system set asm_power_limit=5 scope=both ;
If your asm instance are sharing the same spfile you only need do this on one instance; otherwise run the command both on all asm instances.
Lastly
ALTER DISKGROUP ARCH ADD DISK 'ORCL:ARCH2' ;
Now you can query V$ASM_OPERATION and watch ASM do it's magic of rebalancing.
That's it. All done while the DB is up and running.
How does that work for you?
-JR jr

Upgrade Oracle 10gR2 RAC to 11gR2 RAC

Hi Gurus,
I got a requirement to upgrade my existing environment from Oracle 10gR2 RAC to 11gR2 RAC. My environment details are as follows
Operating system RHEL 5.5
Cluster version 10.2.0.4
ASM version 10.2.0.4
Database version 10.2.0.4
Storage HP EVA (Multipathing)
Could any one please specify the links or documents to complete this task!
Thanks & Regards,
Venkat

HI!
In my practise we have hardware to move 10g -> 11g.
We upgrade our DB's -> install Grid 11g on new server, move DB 10g, Upgrade 10g -> 11g.
You should work on this topic's:
Oracle® Database Upgrade Guide 11g Release 2 (11.2)
NEW FEATURES 11gr2
Complete Checklist for Manual Upgrades to 11gR2
Oracle Recommended Patches
Oracle Clusterware - ASM - Database Version Compatibility
How to Download and Run Oracle's Database Pre-Upgrade Utility
Best Practices to Minimize Downtime During Upgrade
Things to Consider Before Upgrading to 11.2.0.2 Grid Infrastructure
Different Upgrade Methods For Upgrading Your Database
All in you hands!!!

10gR2 RAC

Hi All,
Iam preparing a document to be presented to the management on below topics. Any help from your end is highly appreciated.
1. 10gR2 RAC on Windows (yes, windows - no unix flavour)
Topics that are being covered
- Best storage filesystem
- Special Considerations for Windows
2. Is there a possibility of logically splitting ERP modules between two instances, like, AR, AP related connections to go to Instance 1 and GL, FA connections to go to Instance 2.
Iam aware that the connection split can be done at the mid-tier level, but is it possible on the instance level.
Much appreciate your time.
cheers,
Ram.

I think both topics are covered right here on OTN - in the documentation library. This is the configuration and installation guide:
http://download-uk.oracle.com/docs/cd/B19306_01/install.102/b14207/toc.htm
Topic 2 can be achieved through the SERVICES concept, that's also covered in the document above.
Difficult is the question, what's the BEST storage filesystem. You will get different answers from different vendors, but you should go on the Oracle side for ASM.
Werner

Migration 10gr2 rac to 11gr2 rac

Hi all,
Can I use Transportable Tablespaces to migrate 10gr2 rac with ASM (solaris) to 11gr2 rac with ASM (AIX), the server is not the same.
regards
Edited by: mexman on 06-may-2010 15:36

mexman wrote:
OK, and can I use Transporting Tablespaces Between Databases 10gr2 to 11gr2 ?Yes.. as mentioned above by Dan , you can use..

10gR2 RAC SE and OCFS2

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