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Completing pre-upgrade tasks

 To complete pre-upgrade tasks

1. Upgrade the OS and install any patches, if required. Refer to Oracle metalink note 169706.1, "Operating Systems Installation and Configuration Requirements Quick Reference"..
2. Take a hot or cold backup of the existing database
3. Take a backup of the existing Oracle home and central inventory.
4. Shutdown the Oracle instance.
   • If Oracle is under VCS control, freeze the oracle group:

     # haconf -makerw

     # hagrp -freeze <oracle group> -persistent

     # haconf -dump -makero

   • Use oracle commands to shutdown oracle.
5. Shutdown CRS.
   • If CRS is under VCS

     # haconf -makerw

     # hagrp -freeze <cssd group> -persistent

     # haconf -dump -makero

   • Stop CRS

     # /etc/init.d/init.crs stop