FreeNAS build for a small business

[floryn08]

Hello!

We currently have at the office(a web development agency) a FreeNAS built from unused PC parts from around the office and we have been very happy with it. But now it's full and it's time for an upgrade.

The parts I thought of are:

Case: Zalman Z11 Plus
2x HDD Rack: Thermaltake Max 3503 SATA HDD Rack
6x HDD: WD Red 6TB SATA-III 5400RPM 256MB WD60EFAX
PSU: Seasonic Focus GX, 80+ Gold, 650W FOCUS-GX-650
2x USB memory stick: Kingston DataTraveler 100 G3 32GB
RAM: HyperX Fury Black 64GB DDR4 3200MHz CL16 Dual Channel Kit

My thoughts:

• I choose that case because it's cheap and has four 5.25 inch bays to fit the two HDD racks.
• The HDDs will be fitted in the racks and used in a RAID-Z2.
• In the future, we could fit another 6 HDDs in the internal bays of the case and connect them using a PCI SATA controller.

I'm undecided if I should go with AMD or Intel, the two options I thought of are:

CPU: Intel Coffee Lake, Core i7 9700 3.0GHz box BX80684I79700
Motherboard: ASUS TUF Z390-PRO GAMING

OR

CPU: AMD Ryzen 7 3800X 3.9GHz box 100-100000025BOX
Motherboard: MSI MPG X570 GAMING PLUS

I've read about some temperature reporting errors with Ryzen CPUs but other than that couldn't find anything that could break the system. Besides I've read that Ryzen official support comes later this year when FreeNAS and TrueNAS merge.

What it will be used for:

• finished web design projects and website backup storage with samba shares
• a separate share for web development
• around 10 people will use it, 5 of them through a VPN
• maybe a small Ubuntu virtual machine

What do you think about this build for our use case? Should I go AMD or Intel? Will this FreeNAS?