I’m installing a DS1821+ with two NVME drives. While I understand the difference between a cache and a pool, I’m a fuzzy on which would be more beneficial and why. I’ve done a bunch of searches, but haven’t found anyone discussing it yet. I don’t need the space, so this is a performance issue. And what would be the best way to configure it, if I can even do that — I haven’t yet booted the NAS yet, so I’m not sure what I’ll find once I get into it.
Also, does anyone know if there’s a way around the 108Tb volume size on the DS1821+? Will the volume limit even matter?
What is the maximum single volume size of my Synology NAS? - Synology Knowledge Center.
It depends what you’re wanting to use it for. Cache drives are better for file servers sharing the same files a lot as it greatly speeds it up in the SSD Cache whereas an NVMe Storage Pool are more for VMM as you’ll get NVMe performance on the VMs then.
That link only tells me what I already knew, not how to deal with it.
So if I was going to run a bunch of Docker containers, a pool would be better. Can I use a pool for cache as well? I plan to morrow the two NVME drives; could I set it up to do both?