Applying a cpu patch in Oracle RAC environment c/w dataguard standby database

From: dba cjb <>
Date: Mon, 21 Feb 2011 07:16:03 -0800 (PST)
Message-ID: <>

I am applying a patch ( 38 ) on production at the week-end on 3 node cluster on oracle / this will also be applied to dataguard standby database on seperate 3 node cluster.

os is windows 2003 sp 2

I have practised patch apply on copy production many times and have confidence this will work.

The general order of events will be:-

  1. Stop production
  2. Stop Standy
  3. apply binaries part of patch on production
  4. apply binarries part of patch on Standby
  5. Start standby
  6. Start production
  7. Apply database scripts to production

I will be unable to test until the week-end

My main concern is that standby can apply archivelogs that were generated from redo before patch / database upgrade as well as logs resulting from upgrade and after

/ especially in rac environment wher application of standby logs generated from independant nodes is not independant

If anyone can allay my fears or point to hints/documentation I would be gratefull

Chris B Received on Mon Feb 21 2011 - 09:16:03 CST

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