Dataguard vs RAC [message #405232] |
Wed, 27 May 2009 02:20  |
lodopidolo
Messages: 3 Registered: May 2009
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Junior Member |
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I to every body.
This is my first question in this forum.
Is possible make a RAC with private storage and not with share storage?
I explain my situation. I have two buildings and I want to put one Oracle Database Server in each one. These two buildings are connected using a 100Mb optical net over ATM but we are going to migrate to one gigabit net. All traffic between buildings is made by this network but I can guarantee any transfer rate I need. I want replicate then information in both server to prevent a possible collapse of the building SAN (there is a SAN in each building).
One solution is make a data guard configuration, but I don't want put one of these server in standby. I want all server up and resolving customers request. Then I thought in mixture of both: Data replication of data guard, and service availability of RAC. Then is necessary private storage por each node.
Is possible a RAC or I must make a data guard?
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Re: Dataguard vs RAC [message #405272 is a reply to message #405257] |
Wed, 27 May 2009 04:54   |
lodopidolo
Messages: 3 Registered: May 2009
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Junior Member |
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Mahesh Rajendran wrote on Wed, 27 May 2009 03:56 | about real time data and serious business, RAC has to be in shared storage.
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Ok. It isn't a real time o serious buniness. I only want a another database server in other place serving to all user or balancing with the other server.
Mahesh Rajendran wrote on Wed, 27 May 2009 03:56 |
RAC without a standby like arrangement provides very little HA solution.
... you want to separate services (reporting for example), DG Standby will help.
DG can be used for dual purpose. For standby and for read-only reporting.
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Well, I don't want a read-only system. I want my system run like a RAC, but with some DG characteristics (separate storage for node). Then it could be an HA system.
Mahesh Rajendran wrote on Wed, 27 May 2009 03:56 |
If you would just like a replicated site and do not worry about and ideal standby-like environment, you can just use streams.
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With Stream I could have two identically system, but really these are two separated system. There isn't unique ip for both and unique administration point, isn't it?
Thanks!
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