Oracle clusters

Gurus
If you all can help me in this.I have a fair idea about this but i want experts advice.
we want to set up a database server cluster with two nodes to start - dual processor each connected to a RAID 5 SAN
We want both servers to be Active (no Passive) and we want the ability to add more Storage and add more servers to the cluster.
Why can't we do this with LINUX AS 3.0 and Oracle 9i enterprise edition?
What are our options for doing this with ANY OS running on a NON Unix/AIX machine? We want to be able to set this up using PCs.
Please let me know which licenses and OS combination will work. one hosting company says with LINUX AS 3.0 and Oracle 9i Enterprise we would only be able to run the 2 server cluster as Active/Passive.
Please give me some advice on this issue
Thanks
Regards

you can run Redhat Linux 3.0, Oracle Release 2 Enterprise Edition in Active Active mode that is Two node real application clusters. If you feel that Enterprise Edition is too expensive, you can go for Oracle 10g Standard edition with Redhat 3.0,dual processor nodes(licenced max of 4 cpu s ).

Similar Messages

Advantage/disadvantage in OS and Oracle clustering

Dear DBAs
i need to know what are the advantages and disadvantages in using Oracle clustering instead of OS clustering.
I will be thankfull if you can provide a table (advantage/disadvantage) for each case.
The OS is windows 2003 and the database is 10g
Thx in advance
Regards

One advantage could be you don't need to buy OS clusterware as it comes bundled with Oracle 10g.
So Cost benifit is One of the advantage.

Struggling with oracle clustered production environment

Hi Experts,
I have a requirement to upgrade Oracle Data Integrator(ODI) from 10.1.3.5 to 11.1.1.6.3 We have a Clustered production environment where N1 will be up when N2 be down and viceversa.
Here N1 and N2 are the ODI servers as well as DB(11g Release 2) servers. They both access the SHARED CLUSTERED database.
From ODI we will generally point the Oracle clustered IP(Virtual IP) which will internally point either N1 or N2 whichever is active.
ODI application wise we are clear about the procedure.
Having some issues on DB related activities.
1. Should I break the cluster definitely? Cant I do the activity without breaking the cluster?
2. Do I need to point N1, N2, Clustered IP (Virtual IP) while doing the activities?
3. Since its a clustered database, do I need to db related activities once or twice? (Twice means, manually on both the servers)
4. As they are using same file structures (RAC), If the Virtual IP points N1 by default, assume that I create two new users and log in is success. Now i manually point N2 and what will happen if I try to log in to the two new users from N2. will it work?
5. If it will not work, then what would be the solution for this?
Please someone suggest about the clustered environment production problem.
As this is high priority, early response would be highly appreciated.
Need Expert's suggestions for the sequence of steps that to be carried out for a successful migration in clustered environment.
Many thanks in advance..!

This is an ODI question.
Please discontinue your question here and continue it in your duplicate thread here Struggling with oracle clustered production environment
Apart from that, ODI is a front-end tool. If you have any clue about RAC: for ODI it doesn't matter whether your database is RAC or not. the issue is you installed a front-end tool in a RAC environment.
Finally:
As this is high priority, early response would be highly appreciated.For high priority questions there is paid support. This is a forum of volunteers.
Asking for high priority is IMO insulting and rude.
Sybrand Bakker
Senior Oracle DBA

Oracle Clustering on hetrogeneous environment?

Has anyone tried Oracle clustering on a hetrogeneous environment.I have a requirement ,where oracle clustering needs to be implemented between Sun box es and Linux boxes?
Any ideas or Documents wlill be highly appreciated?
Cheers

hmmm... how do you differentiate Sun boxes and Linux boxes? Sun sells boxes which
run Linux. Sun sells OSes which run on systems which come from other vendors which
also run Linux. Some Linux distros are available for SPARC and IA-32 (and other)
ISAs. Solaris support for PowerPC has been discontinued, but I don't think that you
are talking about PowerPC Linux boxes, or are you?
But the only place you can get an answer to your question is Oracle. If Oracle supports
it, then you are ok. If not, then you are on your own.
-- richard

Oracle clustering

Hi,
I want to know whether oracle 10g release2 Standard Edition One supports clustering on windows?
and if yes,which versions of windows?
thanks.

It does not.
Either SE (2 nodes 4 cpu max) or EE only.

Oracle on Linux and Clustering

Are there any solutions for Oracle Clustering on Linux?
null

Hi,
the latest dev. kernel (2.3.12) contains raw device support. For
linux 2.2.10 there is a patch avail. from Stephen Tweedy. That
works great even with oracle8.
ftp://ftp.uk.linux.org/pub/linux/sct/fs/raw-io/
I guess it will be avail. in stable kernel soon.
Marcus
Douglas (guest) wrote:
: Linux does not support raw devices which are needed for OPS.
: Anyone fncy developing raw device support ?
: John Smiley (guest) wrote:
: : The Oracle product you need to support clusters for high
: : availability and scalability is Oracle Parallel Server
(OPS).
: : Unfortunately, the Linux Oracle8i documentation states that
OPS
: : is not yet available for Linux.
: : You could use a hot standby database as Freddy suggested, but
: : this does not require a clustered environment. Oracle 8i
: : (8.1.5) allows a hot standby database to be temporarily
placed
: : in an open, but read-only state. This is particularly useful
: : for batch reporting applications where the main database
needs
: : to be available 24x7 and the reporting load would degrade
: : performance of the main database. So, with Oracle8i, the hot
: : standby can be used as both a disaster recovery database, and
a
: : useful reporting database. With previous versions of Oracle,
: : the hot standby was not useable as anything but a disaster
: : recovery platform.
: : Freddy Wissing (guest) wrote:
: : : Volker Rath, DETECON (guest) wrote:
: : : : Are there any solutions for Oracle Clustering on Linux?
: : : I'm gonna begin experimenting with this.
: : : Oracle can do what's called a standby database, running on
a
: : : remote machine, possibly one in a linux cluster.
: : : The Linux HA project has come a long way, and I believe
could
: : : handle switching the standby database to active, and
assuming
: : the
: : : mac address, IP address and hostname, etc of the failed
node.
: : : Once I have time, I'm gonna try and put all this together.
: If
: : I
: : : have success, I'll be sure and post it.
: : : There are also commercial clustering solutions coming out
for
: : : Linux too. Either way, it won't be long.
: : : - Freddy Wissing
null

ABAP Engine Installation on AIX / Oracle

Dear Team.
We want to install the ABAP engine on the AIX / Oracle Clustered Environment on we have EP 7.0 installed.
Can anyone guide as to how this can be achieved.
Any help will be appreciated.
Thanks,
Prashant.

same as above
I suggest getting a Basis consultant on site, someone, who knows HACMP, can have a look at your current configuration (quorum, clusters filesystem et al) and can give suggestions, what´s the best and safest way to setup an additional system and if you need downtime according to your configuration or not.
Markus

Recommendations - Oracle RAC 10g on Solaris 10 Containers Logical/Local..

Dear Oracle Experts et all
I have a couple of questions for Oracle 10g RAC implementation on Solaris and seek your advice. we are attempting to implement oracle 10g RAC on Solaris OS and SPARC Platform.
1 We are wondering if Oracle 10g RAC could be implemented on Solaris Local/Logical Containers? I was assuming that Oracle will always link it self with OS binaries and Libraries while S/W installation and hence will need an OS image/Root Disk over which it could go. However, in containers, I assume we have a single solaris installation and configuration which will thus be shared to the containers which will be further configured in it. In such situations how does Oracle instalation proceed? Do I need to look at a scenario where, the global Container/Zone will have Oracle install and this image be shared across to zones/containers accordingly? If it is so, what all filesystems from OS will need to be shared across to these zones/containers?
Additionally, even if this approach is supported, is it a recommended approach? I am unsure about the stability and functionality of Oracle in such cases and am not able to completly conceptualize. However, I assume there could be certain items which needs to be approprietly taken care off. It will help if you could share observations from your experiences.
2 The idea of RAC we are looking at is to have multiple Oracle Installations on top of native clustering solution say veritas clusters/Sun Clusters. Do we still need to have Oracle Cluster solution Clusterware (ORACRS) on top of this to achieve Oracle Clustering? Will I be able to install Oracle as a standalone installation on top of native clustering solution say veritas clusters/Sun Clusters?
Our requirement is to have the above mentioned multiple Oracle installations spread across two (2) seperate H/W platforms,say Node A and Node B, and configure our Cluster Solution to behave as active-passive across Node A and Node B. In other words, I will configure Clustering Solution like VRTS/SunCluster in Active-Passive, then have 3 Oracle installations on Node A, another 3 on Node B. I will configure one database each for each of these Oracle S/W installation (with an idea not to have Clusterware between clustering solution VRTS/SunCluster and Oracle installation, if it works). Now I will run 3 databases thus on each of these nodes. If any downtime happens on any one of the nodes, say Node A, I will fail all oracle databases and S/W accordingly to the alternate available node, Node B in this case, using native clustering solution and I will want the database to behave as it was behaving earlier, on Node A. I am not sure though if I will be able to bring the database up on Node B when resources in OS perspective are failed over.
we want to use Oracle 10g RAC Release 2 EE on Solaris 10 OS latest/one before the latest release.
Please share your thoughts.
Regards!
Sarat

Sarat Chandra C wrote:
Dear Oracle Experts et all
I have a couple of questions for Oracle 10g RAC implementation on Solaris and seek your advice. we are attempting to implement oracle 10g RAC on Solaris OS and SPARC Platform.
1 We are wondering if Oracle 10g RAC could be implemented on Solaris Local/Logical Containers? My understanding is that RAC in a Zone (Container) is not supported by Oracle, and will not work anyway. Regardless of installation, RAC needs to do cluster level stuff about the cluster configuration, changing network addresses dynamically, and sending guaranteed messages over the cluster interconnect. None of this stuff can be done in a Local Zone in Solaris, because Local Zones have fewer permissions that the Global Zone. This is part of the design of Solaris Zones, and nothing to do with how Oracle RAC itself works on them.
This is all down to the security model of Zones, and Local Zones lack the ability to do certain things, to stop them reconfiguring themselves and impacting other Zones. Hence RAC cannot do dynamic cluster reconfiguration in a Local Zone, such as changing virtual network addresses when a node fails.
My understanding is that RAC just cannot work in a Local Zone. This was certainly true 5 years ago (mid 2005), and was a result of the inherent design and implementation of Zones in Solaris. Things may have changed, so check the Solaris documentation, and check if Oracle RAC is supported in Local Zones. However, as I said, this limitation was inherent in the design of Zones, so I do not see how Sun could possibly have changed it so that RAC would work in a Local Zone.
To me, your only option is the Global Zone. Which pretty much destroys the argument for having Zones on a Solaris system, unless you can host other non-Oracle application on the other Zones.
2 The idea of RAC we are looking at is to have multiple Oracle Installations on top of native clustering solution say veritas clusters/Sun Clusters. Do we still need to have Oracle Cluster solution Clusterware (ORACRS) on top of this to achieve Oracle Clustering? Will I be able to install Oracle as a standalone installation on top of native clustering solution say veritas clusters/Sun Clusters?I am not sure the term 'native' is correct. All 'Cluster' software is low level, and has components that run within the operating system. Whether this is Sun Cluster, Veritas Cluster Server, or Oracle Clusterware. They are all as 'native' to Solaris as each other. They all perform the same function for Oracle RAC around Cluster management - which nodes are members of the cluster, heartbeats between nodes, reliable fast message delivery, etc.
You only need one piece of Cluster software. So pick one and use it. If you use the Sun or Veritas cluster products, then you do not need the Oracle Clusterware software. But I would use it, because it is free (included with RAC), is from Oracle themselves and so guaranteed to work, is fully supported, and is one less third party product to deal with. Having an all Oracle software stack makes things simpler and more reliable, as far as I am concerned. You can be sure that Oracle will have fully tested RAC on their own Clusterware, and be able to replicate any issues in their own support environments.
Officially the Sun and Veritas products will work and are supported. But when you get a problem with your Cluster environment, who are you going to call? You really want to avoid "finger pointing" when you have a problem, with each vendor blaming the cause of the problem on another vendor. Using an all Oracle stack is simpler, and ensures Oracle will "own" all your support problems.
Also future upgrades between versions will be simpler, as Oracle will release all their software together, and have tested it together. When using third party Cluster software, you have to wait for all vendors to release new versions of their own software, and then wait again while it is tested against all the different third party software that runs on it. I have heard of customers stuck on old versions of certain cluster products, who cannot upgrade because there are no compatible combinations in the support matrices between the cluster product and Oracle database versions.
I will configure Clustering Solution like VRTS/SunCluster in Active-Passive, then have 3 Oracle installations on Node A, another 3 on Node B. As I said before, these 3 Oracle installations will actually all be on the same Global Zone, because RAC will not go into Local Zones.
John

Oracle 9i installtion problen on RH21AS 2.4.9-e.3

Hi,
I am installing Oracle 9i cluster on RH21AS kernel version 2.4.9-e.3. Using the doc "Tips to install oracle 9i on RH21AS" I have installed my OS configured it to install oracle. I could get Oracle cluster manager installed and started (using watchdog). I proceeded to install "oracle enterprise" version that supports oracle clustering (I am using LVM, rawdevices). Now at the end of installation post install tasks like starting http server, cluster manager....failed though the message on there says it is not necessary for these process to succeed. Now that cluster manager and net configuration and agent configuration failed I am trying to do that manually. I started dbca to configure cluster database but erred saying to start "gsd". I started gsd and when I try to check the status "gsdctl stat"
I get this error message "CMCLI ERROR: CMRPC: dropping message that doesnt match, reqMsg :"
Any one any idea whats going on? I would appreciate any help in this regard. And I also read about hangcheck-timer I would like to install that can any one provide any further assistance regarding this?
Thank you.
S

maybe because your jre version is older than the one required for the installation...
Also as far as i remember you can use the jsdk 1.4.2_12 for IA32 in your 64 server... correct me if i'm wrong.
regards
Juan

Oracle Linux 6.2 with RH compatible kernel .versus. Red Hat Linux 6.2 diff?

Hello everyone
* assume that I booted Oracle Linux 6.2 with a Red Hat Compatible Kernel - as opposed to booting the Oracle Linus 6.2 with UEK R1 or UEK R2 kernels *
I am interested in any feature differences between the two OS relating to: functionality, reliability, performance, stability and tools.
The reason I ask is that my employer is trying to figure out if OL 6.2 with a RH compatible kernel is identical to the RHEL 6.2 OS, if we excluded the Oracle UEK and Oracle clustering extra functionality.
This OS will not be used to run Oracle 11g R2 database, this is to be used for any other Linux based non-database applications (such has running Java, JDBC, Apache, C/C++, etc).
many thanks
Yuri

yurib wrote:
So now I can tell them to use Oracle Linux 6.x with a RH compatible kernel for all those non-DB systems and use OL 6.x with UEK for Oracle 11g database.
And I remember there was (still is?) a third kernel, which does not contain new features or performance enhancements, but only bug fixes for the RH compatible kernel.
I am not sure if you are going to need it, but it can be very useful in some cases. For example, if there is a bug in the RH kernel, and you don't want to run the UEK line as you want to stick to 100% strict RHEL compatibility, then Oracle can put the fix into this 3rd bug-fix only RH compatible kernel series.
(For me, I've set up dual-boot UEK & standard RHEL kernels on my machines and never have never encountered issues or bugs.)
>
Many thanks, as always
Yuri

New to Oracle DBA

Recently I've been thrust (kicking and screaming) into a role of DBA. My supervisor has put me through the Oracle Sys Admin Workshops I&II, but that is a starting point; it seemed that many of the features that were touched upon are not being used in our environment (ASM,AMM,RMAN,EM) which makes my life less fun!
My job now is to monitor the database for any performance issues, proactive failure avoidance, backup and restore (the BU/R is handled by NetBackup/BCV with Symmetrix disk mirroring between).
I've been a systems administrator for many years, and I've been able to script a few health checks outside of the DB; at the OS level. I am beginning to look into some of the v$ views that allow me to see what is happening in our system.
I have a couple of generalized questions I'd like to pose (if I need a seperate thread for each question let me know and I'll repost):
1. How do I determine what features are being used by the database (outside of the features mentioned earlier)?
2. What should I be monitoring on a <interval> basis (hourly, daily, monthly)?
3. What should I be looking for when I monitor? (right now i look at the alert log every day for "ORA-" entries and send alerts...)
I'm sure I'll have many many more questions, but these are the ones I have on my mind at the current time.
I apologize for the generality of my questions, I'm sure we'll get more granular as the discussion continues.
We are running the following:
Oracle 11gR2 in HA mode (Veritas clustering NOT oracle clustering or grid control) running on Solaris 10...
Thanks in advance for helping me understand this complex beast!

975181 wrote:
Recently I've been thrust (kicking and screaming) into a role of DBA. My supervisor has put me through the Oracle Sys Admin Workshops I&II, but that is a starting point; it seemed that many of the features that were touched upon are not being used in our environment (ASM,AMM,RMAN,EM) which makes my life less fun!
My job now is to monitor the database for any performance issues, proactive failure avoidance, backup and restore (the BU/R is handled by NetBackup/BCV with Symmetrix disk mirroring between).Modern Oracle is pretty tame, most performance problems wind up being application issues. Avoid "best practices" and people with prescriptive remedies. When you do have a problem, you need to solve that problem, not start twiddling knobs. There is plenty of instrumentation, though some things can get pretty dense for newbies.
>
I've been a systems administrator for many years, and I've been able to script a few health checks outside of the DB; at the OS level. I am beginning to look into some of the v$ views that allow me to see what is happening in our system.
I have a couple of generalized questions I'd like to pose (if I need a seperate thread for each question let me know and I'll repost):Normally one question at a time gets more answers, but some of us will do a list anyways. One thing you will learn as a DBA is you have to change focus rapidly between qualitatively diverse subjects. That is an extreme understatement.
1. How do I determine what features are being used by the database (outside of the features mentioned earlier)?There is a table called DBA_FEATURE_USAGE_STATISTICS that tracks some things. Also, when you log into sqlplus, you get a list of some options. This winds up being quite a complex subject, as there are some features the db uses internallly that you are not allowed to use unless they are licensed. As a DBA you are expected to not even access the tables or views, and to turn off access through dbconsole/enterprise manager (dbconsole is a single db enterprise manager included as a default. Enterprise manager is often used as a synonym for the db part of grid. Explanations may vary) . You are also expected to know that these things can get silently turned back on when you patch. Oracle has a feature called OCM, which helpfully tries to tell support about your system, if not unconfigured.
Learn to use the docs to search for things like DBA_FEATURE_USAGE_STATISTICS. Yes, it is hard to search for things you don't know what they are called.
2. What should I be monitoring on a <interval> basis (hourly, daily, monthly)?Remember to post the exact version of Oracle when posting here. The version would look like 11.2.0.3. So, it depends, and it depends if you are using grid control. The default dbconsole has some decent notifications. The details of what to monitor are site dependent and should be explicit. Some place send some alerts out at 3AM to your cell phone, others think it is good enough to send you an email for when the first person on the team gets in. You have to watch out for the former if you are the sole dba, you can get run ragged without some pushback against management that has a funny idea of uptime requirements. Some places people are afraid to say boo even if there is something wrong, so you do have to watch things. If you can get licensing, the top activity screen in dbconsole/em is real nice for just leaving it up on your screen.
In the past, you had a whole list of things to watch for, nowadays it's easy to have sufficient space and just get to know your system, how much cpu and i/o in pretty little graphs is normal. In most places you learn pretty quick what makes the phone ring.
But the first rule is "don't lose data." That means, fully understand how to backup and how to restore in your sleep, for various scenarios.
3. What should I be looking for when I monitor? (right now i look at the alert log every day for "ORA-" entries and send alerts...)Yes, you need to know what they mean.
>
I'm sure I'll have many many more questions, but these are the ones I have on my mind at the current time.
I apologize for the generality of my questions, I'm sure we'll get more granular as the discussion continues.
We are running the following:
Oracle 11gR2 in HA mode (Veritas clustering NOT oracle clustering or grid control) running on Solaris 10...
Thanks in advance for helping me understand this complex beast!Welcome to our world! You will see there can be some stylistic variance in how people administer. The modern training pushes people to be "DBA 2.0," a fancy way of saying to be slaves to the GUI's. That's only useful up to a point, you do have to have someone around who is willing to dive into the command line and understand what is really going on. People here really want to help, follow the "ask smart questions faq" and the various faqs here. There are some real gurus here (not just in badges), as well as a vast following 24 hours.
A note about googling: There is a lot of good information on the web. There is also a lot of bad advice. Use a critical eye, even here and in the docs. So, learn to deal with the docs, learn to search before asking, give all requested information when posting even if it seems oddly requested. Remember, we can't see what you do, people may jump to wrong conclusions if you don't cut and paste to show exactly what you did and the response. Many here have been doing this a long time and can ask to see information to answer the question you didn't know to ask.

Cluster 3 with Oracle 9

Hi Everyone,
This is for education and personal project use, I have a simple scenario, I have Oracle and few applications running on my shared DIsk Array of my 2 node cluster 3.0, the applications are happy with the primary node running, let's assume that node is down, is there a script or a way to get my app as well as Oracle to automatically restart on the node that is still up (secondary that will become primary node).
I understand there is an Oracle Clustering setup, but I just need a simple scenario or maybe a shell script to check which node is primary, checks for the processes, if processes are dead or killed just restart them.
Any help is welcomed.
Thanks

Its very possible to do - write your own scripts to do what ha-oracle does, only at a user level - you just have to think through all the conditions and tests when doing so..
Things to think about -
-disk / filesystem resources
-ip resources
-crontabs and other local dependencies on Oracle (not necessarily related)
If you throw a script together or check in cron for which side has a "stub" directory, then you can have your app try startup on node B versus node A, and if it doesn't work, fallthrough.
Remember you can even do this inside the cluster itself, just not using the Sun agent/dataservice - and now that SC 3.x has the "data service package template", it's much easier than before.

Making new oracle 10g cluster in redhat enterprise linux

Hy All
i have installed redhat enterprise server in 2 systems and both are attached with SANE network storage. i want to configure oracle 10 g clustering with this setup.
should i have to configure clustering in linux only or there is a feature of clustering in oracle?
if yes than how to do that? i dont have any idea about oracle
please somebody help me
with regards,
ali

Hi Ali!
Hardware clustering is differnet from Oracle clustering.
If you have the database you should investigate RAC http://www.oracle.com/pls/db102/to_toc?pathname=rac.102%2Fb14197%2Ftoc.htm&remark=portal+%28Administration%29
For the Application Server have a look at http://download-uk.oracle.com/docs/cd/B14099_18/core.1012/b14003/toc.htm
Hardware clustering with RedHat could be achieved with Piranha.
cu
Andreas

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.

Oracle backup machine

hello gurus
we are looking to study learn and testing to have backup machine prepared, where we have os as redhat or linux and oracle 10g R2 ARCHIVE MODE.
for this, there are various options
1) duplicate database
2) standby database
3) oracle clustering
the purpose is if one machine get crashed, other start working automaticaly or little manual efforts(commands/wordaround). so duplicate database create one time and no moreupdate, so rest are 2 last options.
but i dont know what are pros and crons of each. what are the alternate mehtod of oracle database on any other machine. is it strictly bind to os and same version or not.
i am instrested to know standby database and clustering oracle, can some one guide and do we need to buy additional software/license for clustering and how best oracle can help us
also can someone advise any alternate solutions available?
regards
salim

hello gurus
but in regualar way what options are available in oracle to make backup database on another machine.
can some one advise and comments all possible way using oracle technology and others third party if any experience
i want to know pros and crons of duplicate,standby,clustering of oracle database among two machine, if 1 machine production goes down so other machine ready to up for users/clients
kind regards
salim

Oracle clusters

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