Building a home server / NAS solution

[Emzor_]

1. Budget (including currency): 2.200€ (2.270 USD) (a bit over would not be the end of the world, but it needs to be warranted)
2. Country: Germany
3. Aim: 
   • It should be as power efficient as possible
   • The system should function as a NAS for myself and close family
   • Movie and Audio streaming
   • Development Server
   • Home Lab
   • VMs
   • Docker Services
4. Software:
   • OS: TrueNAS Scale
   • Family connectivity:
     • DuckDNS to connect to my router with dynamic IP
     • Reverse Proxy to connect to the service which shall be exposed over the internet through DuckDNS
     • OpenVPN for connection to development services
     • Nextcloud for account separated access to data like photos and documents 
   • Streaming: Plex for movies and series, audio has not been decided yet
5. Other Info:
   • TrueNAS with ZFS file system
   • 2 VDEVs á 4 * 8 TB drives
   • RAIDZ2

Hey there, I am currently in the midst of configuring a home server for myself and my family and could need some advise from the pros. The use cases I have already laid out above, but it is the first time for me to create such a system. In the future I actually want to have 2 different systems, so one can just be the NAS and media streaming server and the other the the development server / home lab. For now I will do everything in one single machine, out of simplicity and budgetary reasons, but of course if you see some better hardware I could use to have an easier upgrade path to a 2 system situation, please do not hesitate to point that out. I have made an initial plan on what software to use to accomplish my needs, but that of course may change in the future, I added it nonetheless because that may help some of you to have a better understanding of what I need. I have a few questions left before I want to go into buying all the parts. So I am going to lay out the planed build for you and then list the questions I have in hopes of some help from you guys, which would be greatly appreciated.

 

My planed build:

• CPU: AMD Ryzen 7 5700G
• CPU Cooler: Stock ?
• Motherboard: ASRock X570M Pro4
• Memory: Crucial Pro CP2K16G4DFRA32A DDR4 RAM Kit (2x16GB) 3200MHz
• Boot & Cache Storage: Samsung 970 EVO Plus 500GB NVMe M.2 SSD
• Data Storage drives: 4x Seagate IronWolf 8 TB NAS HDD
• Power Supply: Seasonic Vertex PX-750 ATX3.0 750W Vertex PX-750
• Case: SilverStone Technology SST-CS381 v 1.2

 

My questions are:

1. Is there anything you would change about this build? Knowing what it will be used for, is there anything in particular you would change? I hope I didn't mismatch any parts, but this is not my primary forte so any head ups are gladly received. 
2. What would you recommend for fan configuration? I am either going to use the Stock cooler or one from Noctua. Which one would you recommend? Other than that, I am not quite sure how many case fans I would need and in which push or pull configuration. That's why I haven't listed them above. I want to make sure that nothing gets too hot even under load, but I have no experience with it.
3. What RAID configuration would you recommend? I have looked into this a bit and I think I want to use the ZFS file system with TrueNAS. For now I would buy four 8 TB drives which will become my first VDEV. I thought I would use the RAIDZ2 which would give me 16 TB of usable space and quite a high fault tolerance, but would that be needed? If I need more space I would add another VDEV of four drives in the same configuration. I like the data to be as save from corruption as feasible, but should I rather use RAIDZ1 or another RAID altogether. What do you think?
4. Do I need any additionals? Like cables or something like that, which I might forget.
5. What about GPU? I am thinking about adding a GPU for hardware transcoding for PLEX for example at some point. Is that even needed and if that is something which you would recommend, what is a good card for my configuration?
6. OPTIONAL: Backup strategy? This is a optional question, but because family will also store data on this machine I am thinking about what I will do for backups. For me I wouldn't care too much, but with them in the mix. Are there any cloud backup services you could recommend? If not I may be just going with some good old hard drives stored with a friend.

 

That would be all the info I could think of right now and all the questions I still have. I am more the software kinda guy, so hardware is not my real strong suit. I hope someone here can help me out a bit, so I do not make any dumb decisions and go into this as prepared as possible. Thank you all for reading and anyone helping I thank in advance also. Have a nice day stranger

 

[Electronics Wizardy]

1 minute ago, Emzor_ said:

• TrueNAS with ZFS file system
• 2 VDEVs á 4 * 8 TB drives
• RAIDZ2

Thats a odd choice storage wise. IDK drive prices there, but if power usage is a main goal, go bigger  drives like 16-24TB drives. If your in a high power cost area that will likely pay for its self.

 

I'd get a 8 drive raidz2, triple failures are unlikely and in that case restore backups.

 

If you want 50% usable space go mirrors instead.

 

3 minutes ago, Emzor_ said:

Boot & Cache Storage: Samsung 970 EVO Plus 500GB NVMe M.2 SSD

I'm pretty sure truenas won't let you use the boot drive also for cache, so get a second drive. But I woudln't get a cache drve here, get a pool for VMs and stuff that needs speed instead.

 

4 minutes ago, Emzor_ said:

OPTIONAL: Backup strategy? This is a optional question, but because family will also store data on this machine I am thinking about what I will do for backups. For me I wouldn't care too much, but with them in the mix. Are there any cloud backup services you could recommend? If not I may be just going with some good old hard drives stored with a friend.

You can price out cloud storage, think about $7 a tb a month is about the ball park. Offsite HDDs can work fine too.