RAC clarifications

  • From: <debra.scarpelli@xxxxxxx>
  • To: <oracle-l@xxxxxxxxxxxxx>
  • Date: Thu, 17 Dec 2009 15:40:43 -0500

Hello all, and thanks in advance for your input on these questions.

For those of you who are familiar with RAC, in your experiences, how often are 
the patches (include vulnerability patches) rolling patches (i.e. no downtime) 
vs. non-rolling patches (downtime required)?

And if anyone is using the combination of RAC with DataGuard - do you find this 
truly provides a no-downtime solution in the event of hardware failure? What 
are the drawbacks/gottchas if any?

We're comparing a number of RDBMS solutions for a 24x365 requirement, including 
RAC. I've been an Oracle DBA for sometime, but not yet used RAC, so your 
experience is most appreciated!


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