Does oracle clusterware and oracle RAC require sun cluster

Hi,
I have to setup oracle RAC on solaris 10 SPARC. so is it necessary to install sun cluster 3.2, QFS file system on solaris
I have 2 sun sparc servers with solaris 10 installed on it and shared LUN setup(SAN disk RAID 5 partitions)
Have to have 2 node setup for RAC load balancing.
Regards
Prakash

Hi Prakash,
very interesting point:
As per oracle clusterware documents the cluster manager support is only for windows and linux.
In case of solaris SPARC will the cluster manager get configured ???
The term "Cluster Manager" refers to a "cluster manager" that Oracle used in 9i times and this one was indeed only available on Linux / Windows.
Therefore, let me, please, ask you something: Which version of Oracle RAC do you plan to use?
Because for 9i RAC, you would need Sun or Veritas Cluster on Solaris. The answers given here that Sun Cluster would not be required assume 10g RAC or higher.
Now, you might see other dependencies which can be resolved by Sun Cluster. I cannot comment on those.
For the RAW setup: having RAW disks (not raw logical volumes) will be fine without Veritas and ASM on top.
Hope that helps. Thanks,
Markus

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Veritas required for Oracle RAC on Sun Cluster v3?

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

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

Oracle RAC on solaris Cluster - advantages

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

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

RAC: using Sun cluster or Oracle clusterware?

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

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

Oracle RAC on Sun server.

Hello Oracle RAC gurus,
I have below questions, I would highly appreciate if anyone can answer these.
1) Is it must to have identical server model and configuartion for Oracle RAC?
2) I have Sun Fire 280R machine with Sun solaris 10. Can I install Oracle RAC on this
using Oracle VMWare?
3) Please let me know below scenario is possible or not,
If I have Oracle Databases(single instances) are running on my Sun server box, can I
use this machine as primary node for Oracle RAC? If this is not possible then
can I use as secondary node?
Thanks gurus.

For 1: NO, the hardware does not need to be exactly the same. The nodes can be different models, with different CPU speed and different RAM sizes. The only consideration is that they must be the same O/S. This is a hardware vendor issue. They determine which configurations they are willing to support.
For 2: RAC is currently not supported in Oracle VM.
For 3: YES, at first glance you can do this. Note that the RAC database requires a cluster database home. Thus, you would need to install a cluster database home in addition to the Single Instance database home(s). However, this answer does not consider whether or not your node would be capable of hosting another database instance in regards to performance.
Thanks.

RAW disks for Oracle 10R2 RAC NO SUN CLUSTER

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

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

Oracle RAC requires ODP?

I am starting a new project with the following scenario: .Net 2.0 web application accessing Oracle RAC (64 bits) using Data Access Application Block. I would like to know if it is required to use ODP to access Oracle RAC or Microsoft Oracle Data Provider could be used. Another questions: Do ODP supports .Net 2.0? Is it possible to configure ODP in Data Access Application Block?
Any help is appreciated.
Luciana

Hi,
ODP.NET does not currently support ADO2.0. There should be a beta coming up sometime soon for it, and there are other threads you can check to get info to get in on the beta if you want to do that.
A lot of the RAC functionality is handled by the underlying client, so both ODP's should be able to take advantage of it, at least in some sense. However, as of 10.2, Oracle's ODP has additional functionality to be able to get notification when RAC events occur.
I dont know much about DAAP, but believe there are other threads where folks have converted it to Oracle code.
Hope that helps,
Greg

Multiple Oracle databases in Sun cluster 3.2 (without RAC setup)

There are 2 Sun SPARC (Sun Fire T2000) servers with Solaris 10 (05/09) OS and Sun Cluster 3.2 software. We need two different Oracle databases & instances (Oracle 10g R2 without RAC) for an application. The first database is for Production and need to be configured in the first node & Shared storage disk and need high availability. This database should run from the second node if the first node fails. The second database is for Quality/Test and it is prefered to be running in the Second node for better load distribution. This DB doesnt require any failover.
The shared storage is Sun SE 3510 FC and multiple LUNs can be created for different databases..
Is it possible to configure two different resource groups (one for Quality and other for Production) and make the first node primary for Production RG, and the second node primary for Quality RG and thus distributing the load on 2 servers ? If possible, what special configuration required in Sun OS and Cluster side ?
Appreciate if you can give some configuration procedures/documents for this multi-master cluster setup..

You can configure two resource groups, such as:
# clrg create -n node-a,node-b prod-rg
# clrg create -n node-b qa-rgand you configure the required resources (disk groups / file systems, logical host, oracle listener, oracle server) as described within
[http://docs.sun.com/app/docs/doc/819-2980?l=en&a=expand|http://docs.sun.com/app/docs/doc/819-2980?l=en&a=expand]
Note that this is not really called a "multi-master" configuration - that has a specific meaning for a resource group (see [http://docs.sun.com/app/docs/doc/820-4682/babefcja?l=en&a=view|http://docs.sun.com/app/docs/doc/820-4682/babefcja?l=en&a=view] ) for details.
With Solaris Cluster all nodes part of a cluster are considered active and can host resource groups. You can have any number of resource groups running, where a subset runs one one node, another subset on other nodes. The nodelist property of the resource group defines where it can run, the first node in the list is the preferred primary.
You can even define resource group dependencies or affinities between the resource groups. Like you could define a negative affinity between qa-rg and prod-rg, such as if prod-rg needs to failover to node-b (since e.g. node-a died), it would offline qa-rg. Details for that kind of possibilities are described at [http://docs.sun.com/app/docs/doc/820-4682/ch14_resources_admin-35?l=en&a=view|http://docs.sun.com/app/docs/doc/820-4682/ch14_resources_admin-35?l=en&a=view].
Regards
Thorsten

Installing oracle 10g RAC on sun cluster

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

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

Linux set up for Oracle RAC (real application cluster)

Hi Guys,
I m wrkig as Oracle DBA.
Very curious to know the initials for RAC set up at OS level.
Can anyone provide his/her usefull guidelines for the same.
Although I know all steps at OS level also, but didn't did the set up of before Oracle RAC installation.
Want to increase knowlegde on like:
--how we sahre storage.
--how we set up network (private & virtual IP) and how can check working of NIC's.
--and other required things.
Will appreciate ur help and if someone want to share his/her personal experience.
Thx in advance.

[email protected] wrote:
Want to increase knowlegde on like:Here are very basic answers to very complex questions - from a pure Linux perspective running an Open Source stack and untainted kernel.
--how we sahre storage.Using multipath - this should ship with most 2.6 kernels. The kernel sees the shared storage LUNs as scsi devices - multipath does the rest. (and ASM can directly use a multipath device).
On a physical layer. Typical setup (on a RAC node) is using a HBA PCI card that runs fibre connections into a SAN switch. You can also use Infiniband (IB) as the I/O layer (as Oracle's Exadata database machine does). In this case the servers will use HCA PCI cards, run IB cables into the switch, and so will the storage array run an IB cable into the switch.
--how we set up network (private & virtual IP) and how can check working of NIC's.Depends on the achitecture choses as Interconnect. Typical choices are GigE or Infiniband (IB). Oracle's Exadata database machine (RAC) uses IB as already mentioned. (and is also our preferred Interconnect technology)
With IB you would use the OFED driver stack and have a range of ib.. commands available. These can be used to configure IP over IB (IPoIB) for use as an IP-based Interconnect, bonding of NICs, check a port's status, and so on.
--and other required things.As both Daniel and Hans indicated.. you are asking quite complex questions that require a manual (if not several) to be written in response. So best to refer to the manuals and OTN material available.
Also, if you and your company are serious about using RAC, then you should make use of Oracle's RAC Assurance group to assist you. They will provide you with starter kit information for the o/s selected. They will check every single configuration parameter afterwards and deliver a comprehensive report on what's wrong, what works and what doesn't. With recommended changes that need to be done.

Startup and Shutdown HAOracle on Sun Cluster 3.0

How can I safely shut down Oracle8i on the running Sun Cluster 3.0?
Best regards, Tomislav

Once you have the tds-rg offline, try using scsetup to update the state of the VxVM disk groups, then try switching just the disk group back and forward. Once that works, try bring the RG online.
Tim
---

Does Oracle RAC improve performance over single-instance db

Hallo!i am running a single instance db that seems to be overwhelmed by workload as CPU is constantly 100% utilized despite code and instance tuning and users persistently complain of system slowness.
It is our plan to uprgade to more powerful servers but would also like to implement load balancing to have 2 instances and 2 servers share workload via RAC solution.
Some of peers state that RAC mostly a High Availability solution to enable continuity should one instance fail.I would like to know if db performance would improve on RAC as load balancing between 2 or more instances occurs in a RAC setup.
Thanks.

4joey1 wrote:
Some of peers state that RAC mostly a High Availability solution to enable continuity should one instance fail.I would like to know if db performance would improve on RAC as load balancing between 2 or more instances occurs in a RAC setup.RAC also provides scalability - as you have additional servers and database instances to deal with the workload. It is not a mere high availability and redundancy architecture.
BTW, a 2 node RAC is IMO not a "real" RAC... We also have one of those and I regret not insisting that it be, at minimum, a 4 node RAC - from both a redundancy/availability and performance/scalability viewpoints.
Simple example - on our bigger RAC we are dealing with about 37000+ row inserts every second (3+ billion rows per day). This workload is only handled (on smallish dual 2-core CPU servers) due to RAC. No way that a single one of these servers would alone (as a single non-RAC instance) be capable to deal with that workload.
So yeah - RAC is most definitely also about performance and scalability too. (but that does not mean it's a magic wand for solving your performance problems either).

ORA-28547 on oracle 10g/solaris9/sun cluster

I get an error ORA-28547 each time I try to connect to the running instance of from a host different than the one oracle is running on.
The listener.ora is as follows:
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = IMA)
(ORACLE_HOME = /opt/oracle/app/oracle/product/10.1.0/db_1)
(PROGRAM = extproc)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = oracle-lh)(PORT = 1521))
the tnsnames.ora:
IMA =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = oracle-lh)(PORT = 1521))
(CONNECT_DATA =
# (SERVER = DEDICATED)
# (SERVICE_NAME = IMA)
(SID = IMA)
EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
and the sqlnet.ora:
NAMES.DIRECTORY_PATH= (TNSNAMES, EZCONNECT)
any idea of what's wrong? A ps -ef reports this process running:
oracleIMA (DESCRIPTION=(LOCAL=YES)(ADDRESS=(PROTOCOL=beq)))
can PROTOCOL=beq be the cause of the mess?
Please help!!
Thanks in advance

In the block
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = IMA)
(ORACLE_HOME = /opt/oracle/app/oracle/product/10.1.0/db_1)
(PROGRAM = extproc)
you have to remove line (PROGRAM = extproc)
This line belongs to an external procedure call, not to a database instance, here's a simple example:
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = C:\oracle\server)
(PROGRAM = extproc)
(SID_DESC =
(GLOBAL_DBNAME = Oracle.wkawollek.de)
(ORACLE_HOME = C:\Oracle\Server)
(SID_NAME = ORACLE)
)

Does iOS app and game development require additional cost?

I Want to develop iOS games and apps. I'm all alone to do that. I'm a One-Man-Developer. I can't hire a developer. I have money problems. I knew that I need a Mac And Developer Certification.
Develop a Story line 2D game, do I need to use more money? Why? Dose tye game engines need money?
TO create An app all by yourself on one Mac, do I need more money on the development, programming, coding and designing?

Nobody can give you an absolute answer.
But with the tools available with an Apple Developer paid account, all you need is your imagination and perseverance. This stuff takes a tremendous amount of effort to learn if you haven't any prior programming experience, especially OOP. Swift should make the process a little easier but even learning a language like Swift will require time and patience.
Only read enough to be able to get your first app up and running, no matter how simple.
Once you have a working app, save the source code in a safe place so you can copy it back if you need to later.
Now, read and experiment.
Actually writing the code and testing is how you will learn most things.
Making mistakes is a great way to learn!

Gig Ethernet V/S SCI as Cluster Private Interconnect for Oracle RAC

Hello Gurus
Can any one pls confirm if it's possible to configure 2 or more Gigabit Ethernet interconnects ( Sun Cluster 3.1 Private Interconnects) on a E6900 cluster ?
It's for a High Availability requirement of Oracle 9i RAC. i need to know ,
1) can i use gigabit ethernet as Private cluster interconnect for Deploying Oracle RAC on E6900 ?
2) What is the recommended Private Cluster Interconnect for Oracle RAC ? GiG ethernet or SCI with RSM ?
3) How about the scenarios where one can have say 3 X Gig Ethernet V/S 2 X SCI , as their cluster's Private Interconnects ?
4) How the Interconnect traffic gets distributed amongest the multiple GigaBit ethernet Interconnects ( For oracle RAC) , & is anything required to be done at oracle Rac Level to enable Oracle to recognise that there are multiple interconnect cards it needs to start utilizing all of the GigaBit ethernet Interfaces for transfering packets ?
5) what would happen to Oracle RAC if one of the Gigabit ethernet private interconnects fails
Have tried searching for this info but could not locate any doc that can precisely clarify these doubts that i have .........
thanks for the patience
Regards,
Nilesh

Answers inline...
Tim
Can any one pls confirm if it's possible to configure
2 or more Gigabit Ethernet interconnects ( Sun
Cluster 3.1 Private Interconnects) on a E6900
cluster ?Yes, absolutely. You can configure up to 6 NICs for the private networks. Traffic is automatically striped across them if you specify clprivnet0 to Oracle RAC (9i or 10g). That is TCP connections and UDP messages.
It's for a High Availability requirement of Oracle
9i RAC. i need to know ,
1) can i use gigabit ethernet as Private cluster
interconnect for Deploying Oracle RAC on E6900 ? Yes, definitely.
2) What is the recommended Private Cluster
Interconnect for Oracle RAC ? GiG ethernet or SCI
with RSM ? SCI is or is in the process of being EOL'ed. Gigabit is usually sufficient. Longer term you may want to consider Infiniband or 10 Gigabit ethernet with RDS.
3) How about the scenarios where one can have say 3 X
Gig Ethernet V/S 2 X SCI , as their cluster's
Private Interconnects ? I would still go for 3 x GbE because it is usually cheaper and will probably work just as well. The latency and bandwidth differences are often masked by the performance of the software higher up the stack. In short, unless you tuned the heck out of your application and just about everything else, don't worry too much about the difference between GbE and SCI.
4) How the Interconnect traffic gets distributed
amongest the multiple GigaBit ethernet Interconnects
( For oracle RAC) , & is anything required to be done
at oracle Rac Level to enable Oracle to recognise
that there are multiple interconnect cards it needs
to start utilizing all of the GigaBit ethernet
Interfaces for transfering packets ?You don't need to do anything at the Oracle level. That's the beauty of using Oracle RAC with Sun Cluster as opposed to RAC on its own. The striping takes place automatically and transparently behind the scenes.
5) what would happen to Oracle RAC if one of the
Gigabit ethernet private interconnects fails It's completely transparent. Oracle will never see the failure.
Have tried searching for this info but could not
locate any doc that can precisely clarify these
doubts that i have .........This is all covered in a paper that I have just completed and should be published after Christmas. Unfortunately, I cannot give out the paper yet.
thanks for the patience
Regards,
Nilesh

Does oracle clusterware and oracle RAC require sun cluster

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