RE: clustering

Tanel,  

Are you sure that all nodes hang when one node dies? Not in my experience .. do you have version numbers on hand?  

I am very interested ... as I have 5 production and about 25+ (devl/acpt type) instances on RAC and when node dies the other one always takes over. But I am very interested ...  

Raj

-----Original Message-----
Sent: Monday, July 28, 2003 7:05 PM
To: Multiple recipients of list ORACLE-L

However, failed transactions must be handled from client side. Queries may migrate to surviving nodes transparently. Also, currently RAC has many problems, such all nodes hanging when one node dies. Completely separate systems are still (an will always be) the most available solution.  

Tanel.  

• Original Message -----

To: Multiple recipients of list ORACLE-L <mailto:ORACLE-L_at_fatcity.com> Sent: Monday, July 28, 2003 7:49 PM

Another Important different is that RAC is best High Availability solution in case of System/Instance Failure where in case of HP or Veritas Cluster, all of the resource get stopped on live system/node of the cluster and then get started on second node and hence user will be affected. But in case of system or Instance failure, there is seamless transition of the User session in RAC

Indy Johal

        "Ron Rogers" <RROGERS_at_galottery.org>
Sent by: ml-errors_at_fatcity.com

07/28/03 12:29 PM
Please respond to ORACLE-L

        
        To:        Multiple recipients of list ORACLE-L
<ORACLE-L_at_fatcity.com> 
        cc:         
        Subject:        Re: clustering	

ak,
As I understand it, an HP cluster is 2 boxes that have the capability to access the same disks and data but only one can have the oracle instance running and accessing the datafiles(active). Sort of like a high availability option.
With RAC both boxes can access the instance and datafiles at the same time.
List, Correct me if I need it.
Ron

>>> oramagic_at_hotmail.com 07/28/03 12:14PM >>>
Hi Guys ,
I am new to this clustering concept. Just trying to understand few basics . Need ur help .

what is differece between oracle running on sun /hp cluster with 2 nodes and oracle with RAC running on 2 nodes ?

thanks,
-ak

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