Primary SSD 2tb 7200rpm (good for OS and software, but takes a few sec. to boot up.)
OS & Software
Secondary NVMe/RAID 250gb m.2 (fastest for media playback)
Tertiary SSD 250gb SSD sata III ssd (cache, mostly for making room for m.2 storage)
Media Cache & Scratch
Optional Platter/SSD 500gb 5200rpm HDD (slowest for backup)
Storage & Archive
Though i'll keep my os where it is now (on the m.2)
The article states that h264 media should do fine on platters.
If i'm experiencing stutters etc... I might move the project files and media over to the scratch disk, if available size permits it?
That is a waste of your fastest drive. Put your OS/Application on the SATA III drive as once it boots it really runs from memory. Then put you project files on that fastest drive. backup and archive to hard disk drives