Oracle Real Application Clusters (RAC) is an option for Oracle Databases. It is a cluster database with a shared cache architecture that increases scalability and availability. Oracle RAC support is included in the Oracle Database Standard Edition and is an extra cost option for Enterprise Edition.

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Slowness after migration to RAC 11gr2

we are getting slowness after migrate from ORacle 10gr2 single db to Oracle 11204 oracle rac (standard ed) with asm, on oracle solaris 11. at this momento we have only one node. In the next days we ...
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changing Virtual IP interface names on RAC nodes - how to reconfigure

We are adding an extra interface on our nodes and we are going to bond these so the VIP interface will change from eth5 to bond3. Can someone point on documentation on what to do to reconfigure the ...
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How to forwarding connection between 2 Oracle Database?

I have 2 Databases on independent 2 Linux server. I'm using Oracle 10G and 11G. I have this stage: client -> connect to Server A -> check Database A (check specific tablespace or database A is ...
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SYS_CONTEXT INSTANCE changing on failover?

When using Oracle RAC with either Fast Connection Failover or TAF (Transparent Application Failover), for a given database connection, is SYS_CONTEXT('USERENV', 'INSTANCE') going to change when ...