Questions regarding install and config procedures

[Esperanza]

First off, I am a Windows guy, my Org's Infrastructure is all Windows, so please bear with me.
Doing some searching on this forum, I found that pretty much everything is installed on an individual server. Is it possible with Sentora to segregate the services? Having a separate DB server with a separate Mail Server; all with Ubuntu of course all while attaching to a separate storage pool? And is it possible to cluster for failover?
I'm not entirely comfortable with a single point of failure

Have you considered how you would manage the network configuration and security settings to ensure seamless communication between the segregated services, such as the separate database server and mail server, while maintaining high availability and failover capabilities?