Complete Steps:
=============
1. Pre Health checks
Take following command output by login as ororacrs user to one of the CRS node
crs_stat -t
crs_stat -t |grep vip
crs_stat -t |grep ons
crsctl query crs activeversion
crsctl query crs softwareversion
ocrcheck
ocrcheck -config
crsctl query css votedisk
crsctl check crs
crsctl check cluster -all
crsctl stat res -t -init
2. Set black out and perform pre health checks
3. Stop services
Stop all web services
Stop all app services
Stop db services using following commands
login as ortest on one DB node only - and run:
$ORACLE_HOME/bin/srvctl status database -d test
$ORACLE_HOME/bin/srvctl stop database -d test
$ORACLE_HOME/bin/srvctl stop listener -l test
4. Take Cold backup.
5. Run following command to check the readiness of the current grid home to upgrade.
cd /softwares/12102BIT64/grid/
./runcluvfy.sh stage -pre crsinst -upgrade -rolling -src_crshome /oracrs/oracle/product/11204 -dest_crshome /oracrs/oracle/product/12102 -dest_version 12.1.0.2.0
Go to /tmp/CVU_12.1.0.2.0_ororacrs
Ask SA to run "runfixup.sh" script as root user.
Once done, run the "runcluvfy.sh" again & make sure All checks should be passed.
6. Proceed 12C Grid installation
crsctl query crs softwareversion node1
crsctl query crs softwareversion node2
crsctl check cluster -all
$unset ORACLE_BASE
$unset ORACLE_HOME
***** Login to the host "node1" as "ororacrs" user & make sure CRS services are up ****
cd /softwares/12102BIT64/grid/
$./runInstaller
==> skip software updates
==> Select 3rd option for upgrade and Click Next
==> English
==> Select two nodes
==> Next
==> provide new software location - /oracrs/oracle/product/12102
==> Next
==> Install
==> promt you to run rootupgrade.sh
==> exit
7. Post Checks:
cd /autofs/upgrade/ebso/linux/SOURCE/ORACLE12C/12102BIT64/grid
./runcluvfy.sh stage -post crsinst -upgrade -rolling -src_crshome /oracrs/oracle/product/11204 -dest_crshome /oracrs/oracle/product/12102 -dest_version 12.1.0.2.0
OR
./runcluvfy.sh stage -post crsinst -n node1,node2
crsctl query crs releaseversion
crsctl query crs softwareversion
crsctl query crs activeversion -f
ps -ef |grep pmon
./oclumon manage -get reppath
./srvctl status mgmtdb -verbose
./srvctl config mgmtdb
****** CRS Upgrade Completed to 12c *********
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