Hi, I'm running a relatively well equipped /upgraded TS-677 (it's in the signature) as a small business server with 8 VMs (6 Clients; 2 Servers) in an office eviroment.
I'm currently looking at alternatives too, as QNAP chose to discontinue Ryzen Desktop NAS.
Our current setup is first and foremost constrained by the amount of RAM, than by the amount of fast PCIe storage and lastly by CPU-Power/amount of Cores.
We bought the TS-677 roughly 3 year ago, as it was much cheaper than buying or buildung a server for VMWare ESXi with vSphere and Veaam Backup for vSphere,
which in license fees alone would have cost more than a naked TS-677 over time.
If our TS-677 dies tomorrow, i would restore it on a spare TS-877 (which is privately used right now as storage & plex server).
As an replacement i currently look into the following Open-Source NAS-OS:
(iirc correct it's called TrueNAS now)
running on relatively cheap to come by Desktop/Workstation Hardware like this: 12/24Core Ryzen 3000/Zen2; 128GB and room for adding 5x PCIe 4.0 4x/NVMe SSD & 6x Sata-HDD Drives, for about 1500€.
I personally don't care for Hot-Swapping drives/PSUs (it' imho a more of a convenience feature, than a necessity in small business environments).
Qnap is charging 2,5 times the price, for a less powerful systems in EU actually:
--> https://skinflint.co.uk/qnap-quts-hero- ... 95366.html