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fspinillo
Few questions regarding RHEL 5.1/Oracle 11g and clustering
Jul 18 2008, 10:30 AM EDT | Post edited: Jul 18 2008, 10:30 AM EDT
I was recently given the task of configuring two RHEL servers to run Oracle 11g in a clustered environment. I know that Oracle has its own Clusterware component and that RHEL also has a cluster utility. I've been reading guides and how-to to try and better understand the way clustering will work in this environment. I know that I need a shared storage component (I'm currently working on configuring iSCSI connections up to our SAN) for ASM to function and that the Oracle clusterware communicates via SSH with each other. What I am having trouble with is understanding if I need both cluster components (RHEL and Oracle) or one to manage them. I know in Windows the cluster software manages the storage space, but is this the same for linux? Is Oracle going to manage and mount the storage space as one fails or does the RHEL cluster software do it?

Any help or reference to guides would be greatly appreciated. I'm a user of Linux but only in a personal computing sense, so I have very little understanding of it in regards to networking functionality; so this has been a huge learn as I go experience. Do you find this valuable?    
Keyword tags: cluster oracle 11g red hat
rmaureira
rmaureira
1. RE: Few questions regarding RHEL 5.1/Oracle 11g and clustering
Apr 9 2009, 5:59 PM EDT | Post edited: Apr 9 2009, 5:59 PM EDT
Well, that depends on what you'll do with the machine.

If you will run only RAC with ASM, then you don't need RHEL clusterware. Oracle clusterware will take care of everything for you.

On the other side, if you'll use a cluster filesystem (RHEL includes GFS) or the machine for any other clustered service, then you must install both clusterware software. Oracle clusterware will be responsible for RAC and its components (VIP, GSD, LISTENER), and RHCS will manage filesystems and linux services.

 Do you find this valuable?    

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