Introduction This guide walks through the installation of Oracle Database 19c RAC on a two-node Oracle Linux 7.3 environment. It covers OS and network preparation, Grid Infrastructure setup, ASM disk group configuration, silent installation of the Oracle Database software, RAC database creation, and post-installation checks to verify cluster and database functionality. This guide covers a silent installation of Oracle Database 19c (19.3) RAC on two Oracle Linux 7.3 nodes. For the newer release, see the Oracle Database 26ai RAC installation post. What is specific to this build is the ASMLib disk setup, a chrony time source with no external NTP, response-file installs on a memory-constrained lab, and a DBCA failure caused by ASM disk group compatibility, covered in its own section near the end. Prerequisites Below are the minimum requirements for a Linux environment. For Each Node OS - Linux 7.3 CPU - 2 core RAM - 8GB SWAP - 8GB Disk space - 50GB (/u01) Mu...