You as an SAP basis admin often spend more time to install the SAP systems. Be it a NetWeaver, or an S/4HANA, it takes several days for you to install the system. And moreover, it is not a fun job to watch screen and wait when your turn comes to enter the input. Install process takes long. Imagine, the popup screen for your installer just appeared when you left home, and installation is at halt all night, until you come tomorrow morning and just press “next”.
You may also want a quick/silent install method to achieve the following use case scenarios:
• Disaster recovery: Where you build your application layer quickly
• On demand scale out: Month-End/Year-End close scenario where you need additional application servers
• Training/Demo system: Quickly build the system
Read the attached article "SAP S4HANA Silent Installation.pdf" for complete detail.