RAC with Multiple controlfile's

Is it possible to start multiple oracle instances with different controlfiles (with one database name/alias) instead of using the common controlfile.
right now we are using all files in common except pfile like standalone pfile for each instance.
The way we are able to control the database with pfile/like block size and some other common parameters.
in the same way does the oracle 10g or any future database support the separate controlfile for each instance.
DBA should be able to choose the controlfile parameters/datafiles .

user538769 wrote:
I have 7 application systems that need 7 different Oracle database servers. It is not that simple. There is no such "+rule of thumb+" even that states that one should have one application system per database. So you're assumption that because you have 7 app systems you need 7 Oracle db servers, is very much flawed.
There are numerous factors that dictate how resource intensive that app system is and the size of the server it needs (or the number of servers in terms of RAC).
How many nodes are to be configured to support 7 instances of database?7 what instances? 7 dedicated non-RAC instances? It is seldom technically sound to run 7 (or more) database instances on a single server platform. Often better performance and scalability are achieved by consolidating those difference instances into a single instance.
7 RAC instances? A RAC instance per server is needed. Thus 7 servers would be required.
But this is IMO still very much irrelevant thumb suck equating 7 apps to need 7 RAC instances.
This is not how client-server architecture works. It is not a hardware architecture - it is a software architecture. For that reason it is wrong to assume that each s/w layer or component in the client-server architecture needs a separate and dedicated h/w platform.
Client-server does not scale using hardware alone. In fact, scalability via h/w alone can be a dead-end street running into a massive and unmovable wall.

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No of databases need to be configured :3
what would be the effective configuration?
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Edited by: user570138 on May 26, 2009 11:29 PM

user570138 wrote:
hi,
sorry, am new to RAC.
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Hi,
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If not, what is the order of operations for the install?
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I have done such a configuration on my laptop with i7 Quad processor, 16GB RAM and 640 GB HDD.
I have Installed 2 node RAC, 2 Node ERP and all are running smoothly without any issues.
Refer:
http://appsdbaworkshop.blogspot.com/2011/10/11gr2-rac-on-linux-56-using-vmware.html
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X A H E E R

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I am very confused on what is the best way to handle this setup for my friends family. Any help would be appreciated. Sorry in advance as I know this is a long winded post - I have a feeling this will help others faced with the same issues or questions.
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Would home sharing be better in some way?
I understand the NAS should show up under the shared section in iTunes - I assume that would mean that would mean each user has an iTunes library on their documents?
I have read that there may be corruption issues if users on the different machines try to access iTunes at the same time.
Will there be any issues syncing that various iPods with?
Ugh - sorry for the long post and all the questions. I am just trying to find the best way to do this. I wish Apple would put out a best practices document for setups like this. Thanks in advance.

This is a user to user support forum. Your fellow users can offer solutions or workarounds based on their experience with the application. If you think it should work differently drop a line to iTunes Feedback.
For reasons unknown Apple haven't chosen to allow iTunes to be suspended in one profile and active in another. My recollection is that this applies even if each profile has a different library, although it is some time since I've committed a personal test.
I'm not sure why my suggestion make less sense that your current approach?. As I understand it currently everybody is either signed into their own account when they can do something other than work with iTunes, or they sign into the special iTunes account where they can't access any of their other stuff. You don't have to disable fast user switching. Follow exactly the same steps, but make sure everyone closes iTunes before turning the computer over to another user. Disabling fast user switching helps to enforce that action.
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