I added SSD caching to my NAS and now I'll tell you why you shouldn't
SSD caching isn't for every NAS. It's probably not great for most NAS deployments, and here's why.
A solid-state drive (SSD) is fast, reliable, and has no moving parts, making it the perfect replacement for the mechanical hard disk drive (HDD). The only problem is that SSDs are incredibly expensive, are available in limited capacities, and are only outright better than mechanical drives if used through NVMe slots. One way of improving the performance of HDDs inside network-attached storage (NAS) is through data caching using speedier NVMe drives, and while this seems like a no-brainer, I wouldn't recommend you do the same.
