The following steps uses the patch set 10094017 as an example. This patch set fixes issues in both Oracle home and Grid home.
The following Environment variables are assumed –
CRS_HOME = /app/oracle/grid/11.2/grid
RDBMS_HOME = /app/oracle/oracle/11.2/db
Prerequisites
1.
Make sure you have access as oracle,grid and
root user.
2.
Make sure you have the right amount of free
space.
Free space
required is 5.1GB. To free up space on grid home and oracle home, two places to
look at are
Ø
/app/oracle/grid/11.2/grid/.patch_storage.
This directory contains files created as backup everytime a
patch is installed.
To free up space in this directory, issue the following
command –
$opatch util cleanup <patch number with timestamp>
that command will usually free up
more than 2GB of space.
Ø
Log directories for the grid background
processes.
Some of the files locations are -
/app/oracle/grid/11.2/grid/log/diag/tnslsnr/node1/listener_scan/alert
/app/oracle/grid/11.2/grid/log/thehostnamehere/cssd
/app/oracle/grid/11.2/grid/log/ thehostnamehere /crsd
3.
Check if you have the latest version of the
opatch.
It is
recommended for the patch to be atleast the same version as Oracle currently
installed.
Current
version of Oracle is 11.2.0.1.0. So the opatch is recommended to be atleast 11.2.0.1.0
4. Check
if patch inventory is accessible
Issue the
following commands –
$opatch
lsinventory -detail -oh /app/oracle/grid/11.2/grid
$opatch
lsinventory -detail -oh /app/oracle/oracle/11.2/db
5. Check if the patch being installed does
not conflict with a previously installed patch.
$ opatch prereq
CheckConflictAgainstOHWithDetail -phBaseDir ./
Installation steps
Important first step
: Read the README.TXT file that is included in the oPatch zip file.
Place opatch in
all the oracle and grid homes in all nodes.
To achieve that,
perform the following steps -
1. Download
zipped opatch file from oracle website.
2. Copy the
zipped opatch file to the following locations on all nodes where you plan to
execute opatch –
/app/oracle/grid/11.2/grid
/app/oracle/oracle/11.2/db
3. Unzip the
zipped opatch file in the above directories.
This will result in the following new directories
/app/oracle/grid/11.2/grid/OPatch
/app/oracle/oracle/11.2/db/OPatch
This is the final installed opatch . You do not have to do
anything more.
This specific patch should be applied as a rolling upgrade.
All of the following steps should be followed for each node. Do not patch two
nodes at once.
1. Verify that
the Oracle Inventory is properly configured.
$ opatch
lsinventory -detail -oh <CRS_HOME>
$ opatch
lsinventory -detail -oh <RDBMS_HOME>
This command
completes instantly
2.relocate
service for inst1 instance. relocated the services service1, service2 and
service3
This command
takes about 30 seconds to complete.
3.shut down the
CRS managed resources running from DB home
Issue the
following command -
$
<RDBMS_HOME>/bin/srvctl stop home -o <RDBMS_HOME> -s <status
file location> -n
<node_name>#
note the
status file is created by the process
This command
completes in 4 minutes.
4.Execute the
following command as root to unlock protected files.
$
<CRS_HOME>/crs/install/rootcrs.pl –unlock
This command
completes in 3 minutes.
5. Save the
RDBMS home configuration settings
To achieve
that,execute the following command –
$
custom/server/10094017/custom/scripts/prepatch.sh -dbhome <RDBMS_HOME>
This command
completes instantly.
6. Patch the
CRS home files
As the Oracle
Clusterware (CRS) software owner, from the directory where the patch was
unzipped;
$ opatch napply
-local -oh <CRS_HOME> -id 10094017
This command
finishes in ~17-20 minutes.
7. Configure
the CRS HOME
After opatch
completes, some configuration settings need to be applied to the patched files.
To change owner
and permissions as root execute the following;
$ chmod +w
<CRS_HOME>/log/<nodename>/agent
$ chmod +w
<CRS_HOME>/log/<nodename>/agent/crsd
This command
finishes instantly.
8. Configure the
RDBMS HOME
After opatch
completes, some configuration settings need to be applied to the patched files.
As the RDBMS software owner execute the following –
$ server/10094017/custom/scripts/postpatch.sh
-dbhome <RDBMS_HOME>
This command
finishes instantly.
9. Security
settings need to be restored on the CRS Home. This script will also restart the
CRS daemons. Invoke this script as root.
$
<CRS_HOME>/crs/install/rootcrs.pl -patch
This command
finishes in 3 minutes.
$
<DB_HOME>/bin/srvctl start home -o <DB_HOME> -s <status file
location> -n <node name>
This command finishes in 4 minutes.
10. On success you
can determine whether the patch has been installed by using the following
command -
$ opatch
lsinventory -detail -oh <CRS_HOME>
$ opatch
lsinventory -detail -oh <RDBMS_HOME>
This completes the patching of Oracle version 11.2.0.1
