Installing OEM 13c on Linux 6 and 7

In this article I will explain how to install Oracle Enterprise Manager 13c on Linux 6 and 7. Installation process is almost similar for both Linux 6 and 7. I am using Oracle Enterprise Linux for this installation. Recommended way is to install database repository on a separate server and OMS on a different server, but for this installation I will be using a single server for both repository and OMS installation. You may download OEM 13c from www.oracle.com. Latest downloadable version available while writing this article is 13.1.0.0. Download all 5 files as shown below.

Installing Oracle 12c R1 Grid Infrastructure on Linux 7

You might be interested in installing 12cR1 Grid Infrastructure (for a standalone server) software in order to use ASM and/or Oracle Restart feature of GI. In the following I will explain how to install GI for a standalone server on Linux 7. For this installation, I am using Oracle Linux 7. You might also want to check how to install Oracle 12cR1 GI on Linux 6

Installing Oracle 12c R1 Grid Infrastructure on Linux 6

You might be interested in installing 12c R1 Grid Infrastructure (for a standalone server) software in order to use ASM and/or Oracle Restart feature of GI. In the following I will explain how to install GI for a standalone server on Linux 6. For this installation, I am using OracleLinux 6. You might also want to check how to install Oracle 12c R1 GI on Linux 7

Configuring OracleasmLib n Linux

To use ASM on Linux, we need to create ASM disks, and using oracleasmLib is one way to configure ASM disks. To do this, we need to install oracleasm kernel driver, oracleasm-support and oracleasmlib, and then configure oracleasm.
oracleasm kernel driver is built in Oracle Linux and does not need to be installed. After installing oracleasm-support and oracleasmlib packages, oracleasm driver starts working.

Installing Oracle 12c R1 Database Software on Linux 7

This document explains how to install Oracle 12c Database software on Oracle Linux 6. At the time of writing this document, latest 12c version is 12.1.0.2 which can be downloaded from My Oracle Support using patch search for patch 17694377 (Disk 1 and Disk 2 are needed for Oracle Database software). Otherwise you can also download 12.1.0.1 from www.oracle.com.

Installing Oracle 12c R1 Database Software on Linux 6

This document explains how to install Oracle 12cR1 Database software on Oracle Linux 6. At the time of writing this document, latest 12c version is 12.1.0.2 which can be downloaded from My Oracle Support using patch search for patch 17694377 (Disk 1 and Disk 2 are needed for Oracle Database software). Otherwise you can also download 12.1.0.1 from www.oracle.com

Creating Oracle Database Using dbca for 12c R1

Database Configuration Assistant (dbca) is an Oracle provided tool to create a new database. In this document I would explain how to create a new 12c R1 database using dbca. For database creation steps for Oracle 12c R2, follow this document. Steps and screens are almost same for other Oracle database versions and different OS platforms.

Changing Listener and SCAN Listener Ports

In this article I will explain how we modify Listener and SCAN Listener ports in RAC environment. For this article, in a 2 nodes RAC on Windows, my database listeners are listening ports 1521 and scan listeners are running on port 1522. I will change listeners’ ports to 1531 and scan listeners’ ports to 1532.

ORA-01017: invalid username/password - While Starting Instance using srvctl

If you face ORA-01017, following could be the reasons of this error.

• Username has been specified wrongly – check the username.
• Password has been specified wrongly – check the password.
• If you see this error while logging in as user SYS, check if password file exists. If not, re-create the password file or enable OS authentication.

Starting and Stopping Oracle Cluster (RAC)

In this article I will explain how to start and stop a cluster (RAC). To find out hot to start and stop High Availability Services (HAS) and other Grid Infrastructure resources in a standalone GI installation, check this article.
We can either use “crsctl stop/start cluster” command or “cractl start/stop crs” command to accomplish this task. The difference between both method is as follows