About Operating System Requirements
Depending on the products that you intend to install, verify that you have the required operating system kernel and packages installed.
Checking the Software Requirements
Check your software to see if they meet the minimum version, filesets, and Authorized Problem Analysis Reports (APARs) requirements for installation:
Enabling I/O Completion Ports
To ensure successful database, client, and grid infrastructure installation, set IOCP to Available using this procedure.