This post shows steps to moving from a role separated Oracle restart setup to a single user setup.
The way to do this is to remove the GI software installed with grid user and reinstall it with oracle user. However it is not possible to remove the the existing GI home while oracle database home is configured on it.
[grid@rhel7 deinstall]$ ./deinstall Checking for required files and bootstrapping ... Please wait ... Location of logs /opt/app/oraInventory/logs/ ... Traces log file: /opt/app/oraInventory/logs//crsdc_2016-02-24_07-28-15PM.log ERROR: Can't deconfigure Oracle Restart before removing or downgrading managed Oracle databases.So the option is to manually remove the grid home. This oracle restart environment used here is 12.1.0.2 on RHEL 7
1. Create a pfile from the ASM spfile
SQL> create pfile='/home/grid/asmpfile.ora' from spfile; [grid@rhel7 ~]$ more asmpfile.ora +ASM.__oracle_base='/opt/app/oracle'#ORACLE_BASE set from in memory value +ASM.asm_diskgroups='FRA'#Manual Mount *.asm_diskstring='/dev/sd*' *.asm_power_limit=1 *.large_pool_size=12M *.remote_login_passwordfile='EXCLUSIVE'2. Backup the oratab file
3. Stop the HAS service
crsctl stop has4. As root user, delete the GI home installed with grid user
[root@rhel7 12.1.0]# pwd /opt/app/oracle/product/12.1.0 [root@rhel7 12.1.0]# rm -rf grid5. Remove other HAS related files
cd /etc
rm -rf ora*
find . -name *ohasd -exec rm {} \;
rm /etc/systemd/system/oracle-ohasd.service
rm /etc/init.d/*ohasd
rm -rf /opt/ORCLfmap
rm -rf /var/tmp/.oracleRemoving of "/var/tmp/.oracle" is important without removing it, trying to reinstall will fail. More on 1997268.12016/02/24 20:04:38 CLSRSC-318: Failed to start Oracle OHASD service Died at /opt/app/oracle/product/12.1.0/grid_2/crs/install/crsinstall.pm line 3041.6. Backup the existing oraInventory and create a new oraInventory directory as oracle user
drwxrwx---. 6 grid oinstall 97 Feb 5 19:38 oraInventory # mv oraInventory oraInventorybak # mkdir oraInventory # chown oracle:oinstall oraInventory7. Change udev file so that owner is the oracle user
OWNER="oracle", GROUP="asmadmin", MODE="0660"8. Remove grid user owned GI related folders from ORACLE_BASE
cd $ORACLE_BASE # ls -l drwxrwx---. 4 grid oinstall 29 Sep 29 16:58 admin drwxr-x---. 3 oracle oinstall 18 Sep 29 17:26 audit drwxrwxr-x. 6 grid oinstall 56 Sep 30 15:38 cfgtoollogs drwxr-xr-x. 2 grid oinstall 6 Sep 29 16:43 checkpoints drwxrwx---. 4 grid oinstall 32 Sep 29 16:39 crsdata drwxr-x---. 19 grid oinstall 4096 Sep 29 16:38 diag drwxr-xr-x. 3 grid oinstall 17 Feb 4 17:44 log drwxrwxr-x. 3 grid oinstall 19 Sep 29 16:33 product drwxr-xr-x. 3 grid oinstall 24 Sep 29 16:39 rhel7 rm -rf admin/+ASM rm -rf cfgtoollogs rm -rf checkpoints rm -rf crsdata rm -rf diag rm -rf log rm -rf rhel7/ # ls -l drwxrwx---. 3 grid oinstall 18 Feb 24 19:39 admin drwxr-x---. 3 oracle oinstall 18 Sep 29 17:26 audit drwxrwxr-x. 3 grid oinstall 19 Sep 29 16:33 productChange the ownership of the remaining files to oracle user
chown oracle:oinstall product/12.1.0 chown oracle:oinstall product chown oracle:oinstall admin # ls -l drwxrwx---. 3 oracle oinstall 18 Feb 24 19:39 admin drwxr-x---. 3 oracle oinstall 18 Sep 29 17:26 audit drwxrwxr-x. 3 oracle oinstall 19 Sep 29 16:33 product9. Reboot the server. Once restarted verify the permission on the block devices used for ASM
ls -l /dev/sd* brw-rw----. 1 oracle asmadmin 8, 17 Feb 24 19:42 /dev/sdb1 brw-rw----. 1 oracle asmadmin 8, 33 Feb 24 19:42 /dev/sdc110. Add to oracle user asm related os groups. The final group list for oracle user is as below
id oracle uid=1001(oracle) gid=1001(oinstall) groups=1001(oinstall),1002(dba),1003(oper),1005(asmoper),1006(asmdba),1007(asmadmin),1008(backupdba),1009(dgdba),1010(kmdba)11. Install the GI software selecting "software only" option.
12. Run the root scripts when prompted
# /opt/app/oraInventory/orainstRoot.sh
Changing permissions of /opt/app/oraInventory.
Adding read,write permissions for group.
Removing read,write,execute permissions for world.
Changing groupname of /opt/app/oraInventory to oinstall.
The execution of the script is complete.
# /opt/app/oracle/product/12.1.0/grid_2/root.sh
Performing root user operation.
The following environment variables are set as:
ORACLE_OWNER= oracle
ORACLE_HOME= /opt/app/oracle/product/12.1.0/grid_2
Enter the full pathname of the local bin directory: [/usr/local/bin]:
The contents of "dbhome" have not changed. No need to overwrite.
The contents of "oraenv" have not changed. No need to overwrite.
The contents of "coraenv" have not changed. No need to overwrite.
Creating /etc/oratab file...
Entries will be added to the /etc/oratab file as needed by
Database Configuration Assistant when a database is created
Finished running generic part of root script.
Now product-specific root actions will be performed.
To configure Grid Infrastructure for a Stand-Alone Server run the following command as the root user:
/opt/app/oracle/product/12.1.0/grid_2/perl/bin/perl -I/opt/app/oracle/product/12.1.0/grid_2/perl/lib -I/opt/app/oracle/product/12.1.0/grid_2/crs/install /opt/app/oracle/product/12.1.0/grid_2/crs/install/roothas.pl
To configure Grid Infrastructure for a Cluster execute the following command as oracle user:
/opt/app/oracle/product/12.1.0/grid_2/crs/config/config.sh
This command launches the Grid Infrastructure Configuration Wizard. The wizard also supports silent operation, and the parameters can be passed through the response file that is available in the installation media.Run the command to configure Oracle restart.# /opt/app/oracle/product/12.1.0/grid_2/perl/bin/perl -I/opt/app/oracle/product/12.1.0/grid_2/perl/lib -I/opt/app/oracle/product/12.1.0/grid_2/crs/install /opt/app/oracle/product/12.1.0/grid_2/crs/install/roothas.pl
Using configuration parameter file: /opt/app/oracle/product/12.1.0/grid_2/crs/install/crsconfig_params
LOCAL ADD MODE
Creating OCR keys for user 'oracle', privgrp 'oinstall'..
Operation successful.
LOCAL ONLY MODE
Successfully accumulated necessary OCR keys.
Creating OCR keys for user 'root', privgrp 'root'..
Operation successful.
CRS-4664: Node rhel7 successfully pinned.
2016/03/01 18:39:59 CLSRSC-330: Adding Clusterware entries to file 'oracle-ohasd.service'
rhel7 2016/03/01 18:40:32 /opt/app/oracle/product/12.1.0/grid_2/cdata/rhel7/backup_20160301_184032.olr 0
CRS-2791: Starting shutdown of Oracle High Availability Services-managed resources on 'rhel7'
CRS-2673: Attempting to stop 'ora.evmd' on 'rhel7'
CRS-2677: Stop of 'ora.evmd' on 'rhel7' succeeded
CRS-2793: Shutdown of Oracle High Availability Services-managed resources on 'rhel7' has completed
CRS-4133: Oracle High Availability Services has been stopped.
CRS-4123: Oracle High Availability Services has been started.
2016/03/01 18:40:49 CLSRSC-327: Successfully configured Oracle Restart for a standalone server
crsctl stat res -t
--------------------------------------------------------------------------------
Name Target State Server State details
--------------------------------------------------------------------------------
Local Resources
--------------------------------------------------------------------------------
ora.ons
OFFLINE OFFLINE rhel7 STABLE
--------------------------------------------------------------------------------
Cluster Resources
--------------------------------------------------------------------------------
ora.cssd
1 OFFLINE OFFLINE STABLE
ora.diskmon
1 OFFLINE OFFLINE STABLE
ora.evmd
1 ONLINE ONLINE rhel7 STABLE
--------------------------------------------------------------------------------13. Add ASM home entry to the /etc/oratab file
+ASM:/opt/app/oracle/product/12.1.0/grid_2:N14. Add listener and ASM to HAS configuration
$ srvctl add listener -l listener -o /opt/app/oracle/product/12.1.0/grid_2 -p 1521 $ srvctl start listener -l listener $ srvctl status listener -l listener Listener LISTENER is enabled Listener LISTENER is running on node(s): rhel7 $ srvctl add asm -l listener -d "/dev/sd*" $ srvctl start asm $ srvctl config asm ASM home:15. Modify the inventory for GI Home to include crs=true. The inventory.xml content before and after the modificationPassword file: ASM listener: LISTENER Spfile: ASM diskgroup discovery string: /dev/sd* [oracle@rhel7 ~]$ crsctl stat res -t -------------------------------------------------------------------------------- Name Target State Server State details -------------------------------------------------------------------------------- Local Resources -------------------------------------------------------------------------------- ora.LISTENER.lsnr ONLINE ONLINE rhel7 STABLE ora.asm ONLINE ONLINE rhel7 Started,STABLE ora.ons OFFLINE OFFLINE rhel7 STABLE -------------------------------------------------------------------------------- Cluster Resources -------------------------------------------------------------------------------- ora.cssd 1 ONLINE ONLINE rhel7 STABLE ora.diskmon 1 OFFLINE OFFLINE STABLE ora.evmd 1 ONLINE ONLINE rhel7 STABLE --------------------------------------------------------------------------------
<HOME_LIST> <HOME NAME="OraGI12Home1" LOC="/opt/app/oracle/product/12.1.0/grid_2" TYPE="O" IDX="1"/> </HOME_LIST> ./runInstaller -updateNodeList ORACLE_HOME=/opt/app/oracle/product/12.1.0/grid_2 CRS=TRUE -silent <HOME_LIST> <HOME NAME="OraGI12Home1" LOC="/opt/app/oracle/product/12.1.0/grid_2" TYPE="O" IDX="1" CRS="true"/> </HOME_LIST>16. Patch the GI home to the same level as the Oracle database home.
17. Attach the Oracle database home
./runInstaller -silent -attachHome ORACLE_HOME=$ORACLE_HOME ORACLE_HOME_NAME="oracle_home" Starting Oracle Universal Installer... Checking swap space: must be greater than 500 MB. Actual 4097 MB Passed The inventory pointer is located at /etc/oraInst.loc 'AttachHome' was successful.Inventory content before and after oracle home attached
Before <HOME_LIST> <HOME NAME="OraGI12Home1" LOC="/opt/app/oracle/product/12.1.0/grid" TYPE="O" IDX="1" CRS="true"/> </HOME_LIST> After <HOME_LIST> <HOME NAME="OraGI12Home1" LOC="/opt/app/oracle/product/12.1.0/grid_2" TYPE="O" IDX="1" CRS="true"/> <HOME NAME="oracle_home" LOC="/opt/app/oracle/product/12.1.0/dbhome_2" TYPE="O" IDX="2"/> </HOME_LIST>18. Mount the ASM disk groups
SQL> select name,state from v$asm_diskgroup; NAME STATE ------------------------------ ----------- FRA DISMOUNTED DATA DISMOUNTED alter diskgroup data mount; alter diskgroup fra mount;19. If does not exists create spfile alias and add the database to HAS configuration. Also db entry to oratab file.
mkalias parameterfile/spfile.266.891711477 spfilese2db.ora srvctl add database -d se2db -o /opt/app/oracle/product/12.1.0/dbhome_2 -p +DATA/se2db/spfilese2db.ora -a "data,fra" srvctl start database -d se2db20. Add auto start options to the components
crsctl modify resource ora.DATA.dg -attr "AUTO_START"="always" -unsupported crsctl modify resource ora.FRA.dg -attr "AUTO_START"="always" -unsupported crsctl modify resource ora.LISTENER.lsnr -attr "AUTO_START"="always" -unsupported crsctl modify resource ora.se2db.db -attr "AUTO_START"="always" -unsupported21. The HAS stack should be now up and running
$ crsctl stat res -t
--------------------------------------------------------------------------------
Name Target State Server State details
--------------------------------------------------------------------------------
Local Resources
--------------------------------------------------------------------------------
ora.DATA.dg
ONLINE ONLINE rhel7 STABLE
ora.FRA.dg
ONLINE ONLINE rhel7 STABLE
ora.LISTENER.lsnr
ONLINE ONLINE rhel7 STABLE
ora.asm
ONLINE ONLINE rhel7 Started,STABLE
ora.ons
OFFLINE OFFLINE rhel7 STABLE
--------------------------------------------------------------------------------
Cluster Resources
--------------------------------------------------------------------------------
ora.cssd
1 ONLINE ONLINE rhel7 STABLE
ora.diskmon
1 OFFLINE OFFLINE STABLE
ora.evmd
1 ONLINE ONLINE rhel7 STABLE
ora.se2db.db
1 ONLINE ONLINE rhel7 Open,STABLE
--------------------------------------------------------------------------------This concludes the steps for moving a role separated oracle restart setup to a single user setup.Useful metalink notes
Oracle Restart: 12.1 grid installation root.sh fails while starting ohasd [ID 1997268.1]
Related Posts
Recover From a Clusterware Home Deletion
Moving non-RAC Database and ASM Between Servers
Changing The Cluster Name
