3 or 4 nodes in a RAC?

From: Guillermo Alan Bort <cicciuxdba@xxxxxxxxx>
To: oracle-l-freelists <oracle-l@xxxxxxxxxxxxx>
Date: Thu, 9 Jun 2011 11:51:10 -0300

List

  This is a design question.... We are building a new RAC, we currently have
a 4 node RAC and we are upgrading the hardware and software and are
wondering whether to go with a 3 node RAC or a 4 node RAC. I've heard rumors
that 3node RAC perform better (we have no 4-way current gc waits, but there
are a lot of 3-way current waits)...

   So, what I'm looking for is links or experiences regarding 3-way and
4-way RACs.

Thanks in advance

Alan.-

3 or 4 nodes in a RAC?

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