hybrid flash array

https://get64gbcachestoragedesk.novacrestiq.com/posts/why-64gb-cache-storage-matters-for-enterprise-data-centers

A hybrid flash array blends the speed of SSDs with the capacity of HDDs, using smart caching to keep frequently accessed data on fast flash storage while less-used data stays on slower disks. It's a practical way to boost performance without breaking the bank, ideal for environments needing a balance between cost and speed.