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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Can't drop UNDO TABLESPACE

We have oracle 11gr1 rac two instances on two different servers, new undo tablespace UNDOTBS20140508 created 30G, I want to remove the old one UNDOTBSX02, I did the following: CREATE UNDO TABLESPACE ...
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1answer
91 views

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 ...
3
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0answers
197 views

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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10.2.0.5 RAC instance running on Linux-64 recieved KEWRRFC: Remote Flush slave Failed, return code: 2

Last Friday one of two instances in our 10.2.0.5 RAC cluster was non-responsive after logging the following messages. We ended up rebooting the node and it came up successfully. While I will likely ...
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0answers
45 views

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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75 views

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 ...