Oracle Database 11 g - Online Public Access Catalog

CHAPTER 1 ■ INSTALLING, UPGRADING, AND MANAGING CHANGE 27upgrade occurs in the source Clusterware’s ORACLE_HOME. Since you are running RAC for highavailabilityconsiderations, you should perform rolling upgrades of the Clusterware stack. Thefollowing sections provide detailed instructions with screen shots of the Clusterware upgradeprocedures from 10g Release 2 to 11g. Furthermore, the upgrade is performed in a rollingupgrade fashion.Preparation for UpgradeBefore you can run the installation and upgrade your clusterware, you must first prepare yourenvironment. First, the clusterware should be shut down completely. Next, you must run thesupplied preupdate.sh script to reset the file permissions. This script attempts to shut downClusterware also, but the recommendation is to perform a clean shutdown manually prior tothis step.You can comment out the last three lines of /etc/inittab so that the CRS daemons will nottry to restart:#h1:35:respawn:/etc/init.d/init.evmd run >/dev/null 2>&1 /dev/null 2>&1 /dev/null 2>&1