[Linux-cluster] Oracle non-RAC database cluster

Greg Forte gforte at leopard.us.udel.edu
Fri Jul 21 12:54:31 UTC 2006

In fact, yes, I have that exact configuration.  I assume you intend to 
operate in an active-passive mode, in which case, everything seems to 
work fine (at least, I haven't had any problems since I got it all 
working).  Active-active would be a bad idea, for hopefully obvious reasons.

The biggest stumbling block was that you MUST set the hostname and 
ORACLE_HOSTNAME env var to the name of a "virtual" IP address that will 
always be associated with whichever machine is running oracle at the 
moment.  And when starting the listener (though not the database, 
enterprise manager(s), or isqlplus, for some reason), you must 
temporarily change the node's hostname to that name (you can change it 
back as soon as the listener is started).  Failure to do this during the 
install will cause you no end of grief later on, and there's no easy way 
to fix it afterwards (at least, I never found one).

For various reasons I decided to split up the startup process into 
separate components and separate cluster services, so I've got 4 init 
scripts (database, listener, em, isqlplus) and corresponding, 
independent cluster services.  This may or may not be the smartest way 
to do things, but it seems to work.  I'll send you my init scripts 
offline if you like - they're shameless hacks, but again, they seem to 
work.  ;-)


linux70 at comcast.net wrote:
> Does anyone run a non-RAC Oracle database cluster using  Red Hat Cluster Suite. We are upgrading an older Solaris cluster that uses a Veritas Cluster management software which is very expensive. We would be running Oracle 10g, RHES4 and  Red Hat Cluster Suite. 
> I don't see many references to this configuration so I am a little worried about building a non-standard database. Any input from those out there in cluster-land??
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