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Thursday, July 26, 2018

Oracle Database: Oracle Enterprise Linux : Page Allocation Failure : Performance/Kernel Tuning / - System Unresponsive

We recently had issue with one of our physical servers.  It will become unresponsive and hang in a lot of situations.  Oracle Linux Server release 7.3 NAME="Oracle Linux Server" VERSION="7.3"...

Tuesday, July 24, 2018

Oracle Database - 18c: On Premise Installation - Oracle Linux - Part 2

The second part of the blog discusses on how to install 18c once all the pre-req are complete.  Download the required software from  http://www.oracle.com/technetwork/database/enterprise-edition/downloads/index.html Make sure to accept the license...

Oracle Database - 18c: On Premise Installation - Oracle Linux - Part 1

In this blog I discuss installation of Oracle 18c on premise.  The part 1 covers the pre-requisites installation and part 2 covers the installation.  Pre-requistites The easy and fast way...

Friday, July 20, 2018

Oracle Database : Standard Edition vs Standard Edition one (SE vs SE1)

We had an environment where Standard Edition one was required and engineers installed by mistake Standard Edition. This caused us to stress due to licensing issue from Oracle.  However, to be...

Wednesday, July 18, 2018

Oracle Database - ORA-07217: sltln: environment variable cannot be evaluated. (After Windows to Linux Restore for Archive Logs)

We restored one of our databases from Windows to Linux, everything went fine since cross-platform is supported on our database version.  However, when doing anything with archivelogs (crosscheck archivelog all)...

Wednesday, July 11, 2018

OEM 13cR3 - De-Installation - 13.3.0.0

In this blog I cover how to de-install OEM 13cR3 installation.  Login using oracle account or OMS owner account. The proces is to copy  the uninstall utility to tmp directory...

OEM 13cR3 - Post OMS Installation - 13.3.0.0

If you have followed my install series, then you have successfully installed OEM 13cR3 Installation details can be found on server path - $ORACLE_HOME/install/setupinfo.txt If you have not changed the...

Tuesday, July 10, 2018

OEM 13cR3 - OEM Installation (OMS Setup) - 13.3.0.0

In this blog I am going to discuss on installation of OEM 13cR3 You must do below changes before you can continue On the Database alter system set "_allow_insert_with_update_check" =...

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