[Linux-cluster] Oracle 9i RAC and GFS 6.1

[Robert Peterson]

Adel Ben Zarrouk wrote:
> Dear All,
>
> please Can someone clarify the below questions:
>
> -What kind of lock method supported by Oracle 9i RAC (DLM or GULM) or doesn't 
> need any lock daemon?
>   
If you're going to use GFS for your data, you need a lock daemon.  I 
recommend DLM
because GULM is old-school and may not be supported in future versions 
of Cluster Suite.
> -Installation of Cluster Suite should be installed before the GFS or After?
>   
I consider GFS to be part of Cluster Suite, so installed at the same time.
> -What is the purpose of the Cluster Manager, it is just for fencing or for 
> other things  ?
>   
Cluster Manager is the part of Cluster Suite that handles cluster 
communications.
It maintains a "heartbeat" to inform all nodes in the cluster that the 
node is still running,
and it also takes care of internal messages regarding the joining and 
leaving of nodes
in the cluster.
> -If the customer have any kind of support regarding Oracle or GFS, he must get 
> back to Oracle Inc. or Redhat Inc.
>   
It depends on the error.  People can usually look at what's in the syslog
(/var/log/messages) to determine if error messages are coming from Oracle or
some part of the Cluster Suite.
> -There is any TPC-Benchmark for Oracle-Redhat GFS
>   
I don't have experience with this, so I'll let someone else answer this.
> -How to perform RHEL and Oracle DB for better performance 
>   
There are multiple books and courses dedicated to RHEL and Oracle
performance tuning.  Here's one link that speaks to GFS performance
 tuning, and I'm sure there are more:

http://www.redhat.com/archives/linux-cluster/2005-February/msg00040.html

> Thanks a lot for your help.
>
> Regards
>
>  --Adel
>   
Bob Peterson
Red Hat Cluster Suite