Configuring drives for speed

[csgaraglino]

What I currently have is an iMac with a Fusion Drive, A 8TB External Drive for all my photography and a 8TB External Drive for all my videography. Both are USB3 and I believe they are WD 5,400 rpm RED NAS drives.

Currently,

• Premiere is on the Fusion Drive
• I keep the actual project files (I'm working on) on the same Fusion Drive
• Additional video files are on the Video Drive
• All my Scratch Settings are pointing to the Photo Drive
  The Photo Drive is the least used drive while I am editing.

Today I received an External 512GB SSD drive and I am wondering of the 4 different elements, what would be the best configuration?

[csgaraglino]

I am very surprised that no one has chimed in? You guys are usually super quick to voice opinions and setting up hardware!

[Andy 1968]

It would not be wise to try to play multiple layers of 4K Red One R3D files or 4K Pro Res files of a mechanical hard drive. On the other hand 4K H.264 can be played from a mechanical hard drvie. The video below should help answer your question. That being said you might need to empty the media cahce files from time to time.