I really appreciate all of yours suggestions and feedback.

For you information I will be using Solaris 5.8. I will simply create a database. I won't use RAC or OPS. Raw device will be created by the vendor. I just want to know the followings from oracle database operation perpective.

1. I have a Server. Where Oracle is already installed and 2 instances are already in game on Unix File system. I would like to create raw devices (will be done by vendor) on few new disks and will create a new database instance on that.

Question:
Is that possible? I mean on an existing database, on unix file system, can I create another instance on Raw device?

2. Once the divoce will be ready, I would like to create a database running oracle 9i database creation script. ( create database ...)

Question: Is there any change required for those scripts?

3. I have to create few Locally managed tablespace on that new instance.

Question: Any changes to create those tablespaces?

4. I will take few exports for unix file system database and import the same to Raw device instance.

Question: Any issue on that?

5. I might add few more disks later.

Question: Any issue to add few more raw devices in future when database in oroduction.

Thanks and Regards in advance