Thank you for sharing this.  My company is looking to transition to leveraging AEM and and Dynamic media for hosting customer facing imagery and using the renditions to change them so the timing on this is is great.

I would also add the below session to this list.  This session was a game changer for our mindset on Frame.io and how it can interplay with AEM and the content supply chain as a whole.¡Revolutionizing Content Production with Adobe [S305] – Session diving deep into the content supply chain concept an...

So a lot of this will depend on how your server architecture is setup and what tools you have available to you.  But at my previous company we used to do a backup strategy similar to what you mentioned.  We would take every 3 hours an online backup using the documentation here https://experienceleag...