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Home -> Community -> Mailing Lists -> Oracle-L -> Re: Deploying 11i in a grid environment
Grid or not. Isn't this just a RAC installation of Apps? If not, please
shoot me down, so I can learn something new today (always nice in my old
age) :-).
Apps on RAC: Internally, Oracle's own RAC/Apps installation uses data partitioning in order to perform. Oracle's benchmark of RAC/Apps used data partitioning. That might not be required in your situation, but you should be aware of the possibility - and be prepared to do something about it, if it turns out to be necessary.
As an owner of a consulting company I welcome these kinds of initiatives. Man, we will have work to do in the coming years.
Mogens
Ir Forex wrote:
> Hi,
>
> I'm curious about the challenges a DBA faces when deploying 11i in a grid environment.
>
> Once I get a proper mental handle on what the challenges are,
> I'd obviously like to find some solutions.
>
> So, assume I have 10 hosts running Linux and that I have the latest version
> of 11i and 10g.
>
> Lets assume I decide on this physical deployment:
>
> DB Tier:
> 3 linux nodes running 10g RAC
>
> Apps Tier:
> 7 linux nodes running 11i
>
> Question 0:
> How sensitive is 11i (11.5.9) to the version of the underlying database?
> Will it run fine on 8i, 9i, 10g?
>
> Question 1:
> During 11i installation, when I run rapidwiz,
> is it possible to point rapidwiz at a database service rather than a
> specific Oracle instance?
>
> q2: (a generalization of q1)
> Is rapidwiz RAC aware?
>
> q3:
> Ignoring the answers to q1,2, is it possible to configure 11i so that it
> is unaffected by a crash of any instance in the 10g RAC?
>
> q4:
> What is the best way to install the 11i software on the 7 Linux nodes?
> Should I run rapidwiz 7 times such that I have 7 copies of the 11i software
> on the local disk drives of the 7 Linux nodes? If I do this, will the
> 11i software on node2 be identical to the 11i software on say node7?
> If there is a difference, what is it and how complicated is it?
>
> q5: (a variation of q4)
> Suppose I don't want to run rapidwiz 7 times;
> could I run rapidwiz once on a central file server and then serve
> (using NFS maybe) the 11i software to the 7 Linux nodes? If I do
> this, do I need to worry that the deployed software will function only
> on its orginal node? If it does function only on the original node,
> would it be possible to use soft links, environment variables, and
> properly edited configuration files to properly serve the 11i software
> to the 7 Linux nodes so that it functions on the 7 Linux nodes?
>
> q6:
> Assume I can figure out how to properly serve 11i software to
> the 7 nodes using NFS; what is the best way to protect the application
> from crash of the file server?
>
> q7:
> Lets assume that I have figured out an elegant way to deploy the
> 11i software and I have it properly configured to function with 10g RAC,
> what is the best way to deploy services across the 7 nodes?
> Should I maybe put the Forms server on nodes1,2,3 and the SelfService server
> on nodes4,5,6 and the CM on node 7?
> Or, should I put all the services on all 7 nodes so that each node is identical?
>
> q8:
> Assume I have a good solution to q7, how do I protect the application from
> a crash of one of the 7 nodes? For example, if a user is interacting with
> some business object (entering an order for example), and this user's session
> is connected to node5 and node5 then crashes, is it possible for 11i to
> be configured so that this user session would be seamlessly failed over
> to another node?
>
>
> Sorry about posting so many questions; I've not found any obvious answers
> in the documentation.
>
>
> -moi
>
>
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-- Archives are at http://www.freelists.org/archives/oracle-l/ FAQ is at http://www.freelists.org/help/fom-serve/cache/1.html -----------------------------------------------------------------Received on Sun Mar 07 2004 - 18:41:08 CST
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