11 Jan How to Apply a Standby-First PSU Patch in a 2 node RAC environment
Oracle provides since it’s 220.127.116.11 version a way to apply certain patches, to our standby environment first, without compromising the primary database, to allow to let it burn in the Standby for the time you deem appropriate and then apply the patch binaries to the primary BD ORACLE_HOME and these will cascade into our Standby DB.
The first thing you have to make sure before applying a patch like this, is that it’s certified in the MOS Patch note as “Standby-First”.
For this, I have the patch binaries in /u01/app/oracle/patches/18.104.22.168/PSUOct2013, and the databases that I will apply the patches are the primary DB TEST with oracleenespanol1/oracleenespanol2 nodes, and Standby TESTSTBY with oracleenespanol3 and oracleenespanol4 nodes. The PSU patch that I will apply is 17272731 which is 22.214.171.124.8.