
Both SSD and RAID 0 configs loose all data if there's a failure. A single fast SDD (M.2 NVMe) is cheaper and faster than a RAID 0 config, by a long shot, but stores far less data.

This, combined with proxies made editing much smoother, especially when more than one clip is active. With three HDDs I got about 2.5X read throughput improvement (around 250MB/s to 600MB/s plus). I needed faster read speeds (I film in RAW) and have started using a RAID 0 (striping) configuration using larger hard drives and a OWC ThunderBay enclosure. Are you thinking of an SSD to get better read performance, compared to a single hard drive? Referencing "read" because much of Resolve's performance comes from being able to accessing data faster.
