> "Dual 25 Gigabit SFP28 ports and redundant power supplies for resilience" Can you actually saturate the links with the spinning drives? I've had the hardest time making my TrueNAS ZFS server fast when it was filled with HDD spinning disks. I initially also had 12 of them trying to get maximum speed. I have 128GB RAM and a 10G ethernet connection. I tried all types of optimizations like L2ARC via NVMe, etc, and it w…
The bigger risk is the CPU. This is an issue with the Ubiquiti UNAS Pro 8, their ~$800 USD 8 bay NAS. In theory it has 10gig networking. In practice the CPU physically cannot transfer bits fast enough, because its a dinky underpowered ARM CPU that they clearly chose to hit that quite affordable price point. Its a decent trade-off, because similar units from Synology are more like $1600, and you can meaningfully hit somewhere between 2.5gig and 10gig; but saturating 10gig is out of the question.
The ENAS has a beefier CPU so it might keep up with 25gig (could this do 50gig bonded?). But only testing will tell.