🔧 Step-by-Step: Updating OPatch on Oracle Exadata

Keeping OPatch up-to-date is essential for successful patching operations on Oracle Grid Infrastructure (GI) and RDBMS homes. This guide outlines how to update OPatch on all nodes of an Exadata environment using dcli.

Step 1: Update OPatch in the Grid Infrastructure Home

From KVM1 (or any control node):

Ensure you have a list of all VMs in /EXAVMIMAGES/patches/stage/ALL_VMs.

chmod 666 /EXAVMIMAGES/patches/stage/ALL_VMs

Configure SSH passwordless access:

dcli -g /EXAVMIMAGES/patches/stage/ALL_VMs -l root -k -s '-o StrictHostKeyChecking=no'

Test SSH access

dcli -g /EXAVMIMAGES/patches/stage/ALL_VMs -l root hostname

Copy OPatch zip file to all nodes:Conflict and Space Check

dcli -g /EXAVMIMAGES/patches/stage/ALL_VMs -l root -f /tmp/p6880880_190000_Linux-x86-64.zip -d /tmp/
dcli -g /EXAVMIMAGES/patches/stage/ALL_VMs -l root chmod 666 /tmp/p6880880_190000_Linux-x86-64.zip
dcli -g /EXAVMIMAGES/patches/stage/ALL_VMs -l root ls -l /tmp/p6880880_190000_Linux-x86-64.zip

Backup old OPatch and upgrade in GI home:

dcli -g /EXAVMIMAGES/patches/stage/ALL_VMs -l root "mv /u01/app/19.0.0.0/grid/OPatch /u01/app/19.0.0.0/grid/OPatch_$(date +"%FT%H%M")"

Step 2: Update OPatch in the RDBMS Home

From one of the VM nodes (e.g., VM_1):

Prepare a list of database nodes:

vi /u01/stage/SDN_Nodes
EXA1-SDN-DBP1
EXA1-SDN-DBP2
EXA1-SDN-DBP3
EXA1-SDN-DBP4

chmod 666 /u01/stage/SDN_Nodes

Configure SSH equivalence:

dcli -g /u01/stage/SDN_Nodes -l root -k -s '-o StrictHostKeyChecking=no'

Verify SSH login:

dcli -g /u01/stage/SDN_Nodes -l root hostname

Verify GI OPatch version (already updated in previous step):

su - grid
dcli -g /u01/stage/SDN_Nodes -l grid "/u01/app/19.0.0.0/grid/OPatch/opatch version"
dcli -g /u01/stage/SDN_Nodes -l grid "/u01/app/19.0.0.0/grid/OPatch/opatch lspatches"
exit

Update OPatch in RDBMS Home:

su - oracle
dcli -g /u01/stage/SDN_Nodes -l oracle "mv /u01/app/oracle/product/19.0.0.0/dbhome_1/OPatch /u01/app/oracle/product/19.0.0.0/dbhome_1/OPatch_$(date +"%FT%H%M")"
dcli -g /u01/stage/SDN_Nodes -l oracle "unzip -qo /tmp/p6880880_190000_Linux-x86-64.zip -d /u01/app/oracle/product/19.0.0.0/dbhome_1"

dcli -g /u01/stage/SDN_Nodes -l oracle "/u01/app/oracle/product/19.0.0.0/dbhome_1/OPatch/opatch version" | grep Version
dcli -g /u01/stage/SDN_Nodes -l oracle "/u01/app/oracle/product/19.0.0.0/dbhome_1/OPatch/opatch lspatches"

dcli -g /u01/stage/SDN_Nodes -l root rm /tmp/p6880880_190000_Linux-x86-64.zip

✅ You have now successfully updated the OPatch utility in both Grid Infrastructure and RDBMS homes across all nodes in your Exadata environment.

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