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INS-40915 : Installer detected the presence of Clusterware

 There was a failed installation of  Oracle 12c grid infrastructure due to some storage issues, later these nodes were cleaned using the deinstall procedure. Once the nodes are cleaned, proceeded back with the installation and encountered the following error: To solve this issue check "/etc/oracle" directory on nodes for which its failing. When we check both nodes, we found this directory existed on node2 and not deleted by deinstall procedure. Action Plan: - Delete "/etc/oracle" directory - Retry the Installation  and it should proceed without issues. thanks for reading :)
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Disable Firewall on Oracle Linux 8

In this blogpost we will see how we can stop/disable the firewall on Oracle Linux 8, the firewall command is same in both linux 7 an linux 8. The below listed is the procedure for stopping and disabling the  firewall on Oracle Linux 8. - Here we can see the firewall deamon in active state - Here when we stop the firewall in previous command, now the firewall daemon is dead - For permanent disabling the firewall on server, we can use "disable" option The following commands will be helpful: #systemctl status firewalld #systemctl stop firewalld #systemctl disable firewalld #systemctl enable firewalld #systemctl start firewalld Hope it helps !! Thanks for reading :) regards, X A H E E R

RMAN duplicate fails on 19c

Performing rman duplicate on 19c database failed with below error: RMAN> connect target * 2> connect auxiliary * 3> run 4> { 5> duplicate target database for standby from active database nofilenamecheck; 6> } 7> 8> PL/SQL package SYS.DBMS_BACKUP_RESTORE version in TARGET database is not current PL/SQL package SYS.DBMS_RCVMAN version in TARGET database is not current connected to target database: PRODDB (DBID=33467284355) connected to auxiliary database: PRODDB (not mounted) Starting Duplicate Db at 19-MAY-20 RMAN-00571: =========================================================== RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS =============== RMAN-00571: =========================================================== RMAN-03002: failure of Duplicate Db command at 05/19/2020 17:43:58 RMAN-05501: aborting duplication of target database RMAN-05614: Passwords for target and auxiliary connections must be the same when

Configure Local Repository Oracle Enterprise Linux 8

In this blogpost we will see how we can configure local repository on Oracle Enterprise Linux 8, As you know installation of rpm packages is never been very easy when individually  (without using repository), there may be many dependencies for installation of single rpm. Hence its always a good practice to use package repository either local or public for  installation of rpm package. But in this post we will see how we can configure the local repository on the server. We must have the media/DVD to configure the local repository. - Copy media to any valid directory where you want to configure the repository - Create and Edit Local repository file and use the location where the content has been copied recently - Check the newly configure repository - Now the repository is configured an ready to use. Conclusion: Local repository configuration is simple and its helpful on servers where you cannot configure internet on the server for installation of rpm.

Enable Desktop on Oracle Solaris 11.4

Oracle Solaris 11 installation has multiple options to choose for installation of an Operating Environment, but mostly Oracle Solaris text install media is used and this installation media doesn't offer the GUI Desktop Environment by default after the installation. This blog post will explain how we can enable the desktop for Oracle Solaris 11.4 operating system, after the completion of installation. We have to install "solaris-desktop" package and reboot the machine and GUI desktop will be enabled for the Operating System. In this blog post my virtual machine is connected to the internet and hence I am able to use available pupblic repository for package installation, if in case internet is not available for the server/machine then we have configure the local/Server  repository for the installation. Follow the below steps for desktop package installation: After installation of dekstop package we are now able to login with GUI desktop environment

Oracle Solaris 11.4 VM Template - Import Virtual Box

In this blog post we will see the step by step procedure for importing the Oracle Solaris 11.4 VM template in virtual box. We need virtual box software already installed. Oracle Solaris 11.4 VM template can be downloaded from the below URL: Oracle VM Templates Download templates for Oracle VM VirtualBox, for Oracle VM Server for SPARC, and for an Oracle Solaris 10 zone to run on Oracle Solaris 11 releases.  After the download is complete we are ready to proceed with the import of Oracle Solaris 11.4 VM Template. - Go to preferences and select "Import Appliance" - Browse the location of template downloaded file - Once the import is completed, the newly provisioned VM will be listed in Machine list of Virtual Box. - Next Power on the virtual machine and follow below steps to complete the system configuration. - Review the con

Oracle Exadata X8 Family overview

September 2019 Oracle announced Oracle Database Appliance X8-2 (Small, Medium and HA). ODA X8-2 comes with more computing resources compared with X7-2 Models. Let's take a quick look at few benefits of ODA followed by the technical specification on ODA X8-2 Small/Medium and HA. Oracle Database Appliance is an Engineered System. Software, server, storage, and networking, all co-engineered and optimized to run Oracle Database and applications. Benefits of Oracle Database Appliance (ODA): Software, server, storage, and networking engineered and optimized to run Oracle Database and applications. Supports Oracle Database Standard Edition, Standard Edition One, Standard Edition 2, and Enterprise Edition. Optimized for Cloud Capacity on Demand Licensing - Reduced Cost Ease of deployment, patching, management, and support Increased performance and reliability with NVMe flash storage Reliable hardware architecture with redundant power, cooling, networking, and storag