My OMV Build [SERVER + VM + NAS]

[Notes]
these are some notes which are leanred from previous build

• I abandon idea running KVM on OMV, instead running OMV on KVM (Proxmox)
  Because there is no fancy web interface for KVM (I tried webvirtmgr, kimchi, ..)
  I don't like ESXI since it is hardware dependent, fancy stuff is not free and it is proprietary so I cannot change anything
  I think that Proxmox is best for home user in managing VM snapshot, creating VM and Sharing VM with other people
• linux raid + omv-rsnapshot -> omv-zfs
  zfs is little more safer becuase it handle bitrot
  zfs gives more flexibility for me than raid since I can expand pool
  Also chnaging non ECC RAM to ECC RAM add more safer
• abandon L version(low-power) cpu, don't use if your computer is almost in idle

[HW]

• MSI C236M - 100$, skylake, C236M, xeon board, ECC
• D2607-A11 - 40$, HBA chip that can be crossflashed to 9211-8i (cheapest I can find)
  
  
  • but I don't assign this card for VM, currently there is bug in zfs on linux that cannot handle hard disk spin down
    So, I use HBA card for VM host, and passthrough intel sata controller to VM(OMV)
• E3-1245 V5 - 370$
• DDR4 32GB ECC - 230$

total 740$

sell previous system

• 35$ for mainboard
• 240$ for cpu
• 120$ for ddr3 memory (for 24GB)

total 395$

skylake saves 10W but HBA chip draw 10W, so power is 40W same as previous system
so, pay for 345$ for Increasing 1Ghz Base Cpu frequency , DDR4 ECC, HBA, +8GB

[SW]

• omv-zfs
• omv-letsencrypt + omv-nginx + ddclient (these are my recommended combination)
• omv-openvpn
• zfs-auto-snapshot for daily snapshot

[Usage]

• windows desktop (intel intergrated gpu passthroug) based on proxmox
  so, it act as windows desktop also omv fileserver, without additional external gpu
• file server (ZFS, daily snapshot) based on OMV
• irc server (thelounge) based on OMV
• tvheadend (tv recording) based on OMV
  tvheadend autorecording rocks
• plex server with chromecast

I don't what you want to do with that machine. what you curious about
so I cannot give you detail, I used very short time of ESXI
for me PROXMOX is more convinent than ESXI
but there is no gui setup for pcie passthrough, there is wiki for that

Below is my opinion for OMV on Proxmox

if you want to run NAS and data should be kept very safely
I recommend ECC memory

if you use ZFS
do not use virtio disk (neither entire disk nor disk image)
why? because ZFS need direct access to hdd disk so as I know it is not 100% safe method due to zfs cache policy
best method is passthorugh entire PCIe HBA controller such as 9211-8i
I cannot confirm about SATA multiplier

if you don't use ZFS
for example, you use sw raid
as I know, it is safe to use entire disk passthrough

you can also passthrough GPU
so you can make windows desktop (can play 3d game)

http://pve.proxmox.com/wiki/Physical_disk_to_kvm
I think it will works but I didn't tried with USB connected drive

if you use UnionFS, try snapraid for redundancy
and try omv-rsnapshot, to take periodically snapshot. so when something is wrong (that means you delete something wrong, get virus in your hdd) you can restore since it is snapshot and not backup it dosen't require hdd space unless you write many things after snapshot was taken (hard link)

yes, there is no gui for disk passthrough in proxmox, but it is quite easy to add
for raid, proxmox dosen't support officially sw raid or fake raid(intel raid, cheap raid controller)
but you can use that raid by installing `mdadm`