SSD cache is the means of using solid-state drives for storing frequently accessed data on Synology NAS to improve overall system performance. This guide will show you how to set it all up.

Cache hit rates measure the effectiveness of SSD caching for random reads, and proper setup/monitoring through Synology’s tools can maximize benefits while minimizing SSD wear.

Putting a SSD in front of your array means file transfers will hit the SSD first and then be moved to the array later on. That’s how I have my Unraid set up.