How to change OEM 12c Agent Port ?

Whenever we install EM agent, it will use default port at time of installation on target host. If we need to modify the port then we can follow below steps to change the port number.

Stop the EM Agent

$ $AGENT_HOME/bin/emctl stop agent

Modify the $AGENT_HOME/sysman/config/ file in the EM Agent home directory:

For example:


Modify the <port number> in the EMD_URL property so the EM Agent uses a new unused port on the target host.


Start the EM Agent.

$ $AGENT_HOME/bin/emctl start agent

Check the EM status

Exadata Patching Strategy

Let's have an overview of Exadata Machine patching.
  1. Check latest patches available on Oracle note ID - 888828.1 
  2. Download the required patches
  3. Review the patch README file
  4. Make step by step plan to apply patch for all the component
  5. Run Exachk utility before the patch application, analyse the report and correct wherever it's required.
  6. Automate the patch application process based on rolling or non-rolling method
  7. Apply the patch

Exadata Interview Questions

Get serious about your next job..!!!
                                  It's time to be well prepared..!!

Based on our experience as an interviewer and interviewee, here we have consolidated some of the generic Exadata interview questions and answers.

For more Oracle Exadata Interview Questions & Answers you can go through below link.

Exadata is pre-configured combination of hardware and software which provides a platform to run the Oracle Database. 

There are multiple reason to answer this question. You can go to this link for detailed answer

  • Key components of Exadata
DB Server
Cell Storage
Infiniband Switch
Cisco Switch
Smart Scan
Smart Flash Cache
Storage Index
EHCC (Exadata Hybrid Columnar Compression)

  • Exadata Sizing