What would your choice be Atom C3858 QAT or Epyc 3251 (OpenVPN / FreeNAS and a little VM)

What would your choice be for a low-power OpenVPN / FreeNAS and with a little linux VM

  • Intel Atom C3858 (which has QAT)

    Votes: 3 27.3%
  • AMD EPYC 3251

    Votes: 8 72.7%
  • None of those (please explain)

    Votes: 0 0.0%

  • Total voters
    11
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Yves

Member
Apr 4, 2017
65
15
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Hi there,

Since I and google have not been able to figure this one out I thought why not ask you guys. I want replace my homelabs Edge Router X SFP with a more All-In-One Solution, but maybe I am dreaming of something non-existing...

Since energy costs in europe are a strugle and I had to move a lot of my homelab stuff away (very nice C7000 / and all of my 1U servers :eek:) I only have a raspi4 at home and some network equipment. But now I am moving to a new place and the power is still expensive but more afordable. So I thought why not try a good low power 1U server with some RAM for the simple stuff you need at home ;) pfSense (1GBit Coax, FreeNAS, a CentOS VM for some homeautomation stuff, maybe from time to time a lab vm of a windows or what ever OS)

After googling around a lot I and also reading @Patrick article about the Supermicro A2SDi-TP8F I thought that would be a pretty nice piece of hardware to do all that. Since it is rocking the Atom C3858 12 cores, it has Intels QAT technology aboard which has a big impact on OpenVPN (which is horrible slow on the EdgeRouter) so I guess pfSense would be coverd. FreeNAS ZFS also profits from Intels QAT, so I guess thats a check there. Last but not least the little CentOS VM I have to run some python scripts / nodejs stuff for my home automation stuff won't be an issue I think. So all good! And all of that with a power drawing which does not make me have to sell my kidny :D

But then I was like well... why not go a bit bigger... why not choose the Supermicro M11SDV-8C-LN4F rocking the new AMD EPYC 3251 with 8 cores, ton of ram capabilites and also low"ish" power. But of course no Intel QAT. On benchmarks the Eypc 3251 beats of course the Atom 3858 with about 40-50% (I guess) but I am not doing c-ray, kernel compiling or chess benches. It will be only used for pfSense, FreeNAS, the CentOS VM and maybe from time to time a lab vm of a windows or what ever OS...

Atom Build List
1x Supermicro CSE-505-203B
1x Supermicro A2SDI-TP8F
4x Micron 16GB DDR4-2666 ECC (MTA18ASF2G72HZ-2G6E1)
1x Supermicro MCP-260-00100-0B
2x Supermicro FAN-0100L4
2x Supermicro MCP-320-81302-0B
1x Supermicro SSD-DM016-SMCMVN1 (for the ESXi boot)
1x Kingston UV500 480GB, mSATA (SUV500MS/480G) as main datastore for the VMs | if this even possible msata + m2???
1x Intel Optane 905p M2 (SSDPEL1D380GA01) passed thru as PCI device for 2 Partitions (SLOG/L2ARC) for FreeNAS
2x Seagate Exos X16 (ST16000NM001G) 16TB, 7200RPM hopefully I am able to passthrough the SATA SoC for a mirror pool???

Epyc Build List
1x Supermicro CSE-505-203B
1x Supermicro M11SDV-8C-LN4F
1x Samsung 64GB DDR4-2933 LV (M393A8G40MB2-CVF)
1x Supermicro MCP-260-00085-0B
2x Supermicro FAN-0065L4
2x Supermicro MCP-320-81302-0B
1x Supermicro SSD-DM016-SMCMVN1 (for the ESXi)
1x Innodisk SATADOM-ML 3ME3 V2 256GB as main datastore for the VMs | hopefully I can grab some 5V somewhere???
1x Intel Optane 905p M2 (SSDPEL1D380GA01) passed thru as PCI device for 2 Partitions (SLOG/L2ARC) for FreeNAS
2x Seagate Exos X16 (ST16000NM001G) 16TB, 7200RPM hopefully I am able to passthrough the SATA SoC for a mirror pool???

I marked the pitfalls where I am unsure if it will work bold.

So the big question what would your choice be and why? Would you go for the Intel Atom C3858 with QAT or the faster AMD Epyc 3251? Or would you choose even diffrently? Do you think the Intel Atom C3858 with QAT will beat the Epyc 3251 in OpenSSL (maybe someone of you even tried that once)?

Thanks for your vote and help

Cheers,
Yves
 

NathanM3

New Member
Dec 4, 2016
7
0
1
QAT software support is not very good. ZFS has no support for it under freebsd, so it cannot be used on freenas for ZFS acceleration. I also was unable to get an 8950 QAT card working on pfsense with openvpn, though I didn't spend much time trying.
 

Yves

Member
Apr 4, 2017
65
15
8
38
@NathanM3 Thats a very IMPORTANT feedback you are just giving me here! Thank you very much.

I just recieved a nice SYS-E300-9A demo unit from Supermicro. But I did not have time to test it out yet. I wanted to test QAT support on pfsense but seams like this is a NO GO... So I guess I would need, if I really need the OpenVPN speed eighter go on a diffrent solution or go with the EPYC 3251 which is for sure good enough.