Database - RAC/Scalability (MOSC)

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When applying OS patches to 2-node RAC, do both nodes have to be shut down?

edited Feb 13, 2015 5:20PM in Database - RAC/Scalability (MOSC) 2 commentsAnswered ✓

We are running a 2-node 11.2.0.4 RAC (11.2.0.4 GI) on RHEL6.5 and need to apply RHEL6.6 patches.  Because RAC requires nodes to be at same release, I feel we need to shut down both nodes and patch but this seems to defeat the one of the benefits of having RAC.  Can someone confirm?  Also, we do have Data Guard Standby so we can failover to Standby while maintenance is in-progress on primary correct?

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