How could I study Oracle linux cluster ?

Hello buddy:
I want to study Oracle linux cluster. so, where can I get started ? I read online documents, but they not tell you how to build a test enviroument using VMware.
Could you give a hint ?

user1934450 wrote:
Purpose is studying.Studying what exactly? Clusters are more than just shared disks.
I want to restablish a single instance and database using OS cluster. The shared disk just can be seen by on node server, then I can manually test this OS cluster and make switching between two nodes at least.This is not really a cluster. A cluster supports scalability - for example, if a process load is too large for a single node, some of it can spill over and be executed by another node or multiple other cluster nodes.
If you talk about standard Linux clustering, that would be running some kind of number crunching s/w (weather modeling, crunching astronomy data, etc) and running this across multiple cluster nodes.
A shared cluster storage system is one possible component of a cluster.
Taking your example - a shared cluster file system is not needed. As the other nodes cannot use that file system (if it does, it can corrupt database files) - only a single non RAC database instance can use the database. Thus the file system can only be used by a single instance on a single server. No clustering needed.
When that server fails, that file system (from the storage server) needs to be mounted on another server and the database instance started on that server.
This is not really a true cluster - simply a high availability and redundant configuration using multiple servers.
If you want to study actual real clustering - do some research using Google. Create a simple project like calculating pi for example and create a virtual 2 or 3 node cluster that run this processing in parallel - using a shared cluster file system for data storage.

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