[57north-discuss] Hosting servers

[Tony Travis]

On 24/07/2021 15:10, Robert McWilliam wrote:
> On Sat, 24 Jul 2021, at 12:58, Tony Travis wrote:
>> The servers are Dual 8-core (16 thread) Opteron 6380 + 128GiB RAM, OS on
>> a 500GB SSD RAID1 and 4 at 8TB on an LSI9211-4i with an LSI9211-8i to allow
>> for expansion of another 8 at SATA3 disks.
> 
> What does power usage of those systems look like? Would they be always on or some kind of boot as needed set up?

Hi, Robert.

They idle at about 250Kw/h and use about 350Kw/h working (no GPGPU).

> I think they're on the cusp of cost of electricity to run them being more than costs for an EC2⁰ instance with the same performance¹.
> Comparison of them to some modern chips:
> https://www.cpubenchmark.net/compare/AMD-Opteron-6380-vs-Intel-i7-11850H-vs-AMD-Ryzen-5-5600X-vs-AMD-Ryzen-9-5950X-vs-AMD-Ryzen-9-5900X/2498vs4342vs3859vs3862vs3870

I'm using second-hand Opteron 6380's because their memory management is 
better than equivalently priced Xeons and I don't care about their FP 
performance. When I do care about FP performance, I use GPGPU not Xeons.

In my experience, EC2 is much more expensive than running your own 
system iff you use it a lot - Remember my "Zen and the art of computer 
maintenance talk": Amazon EC2 is more cost-effective the less you use 
it. When I started out on this path, I was using EC2 and it cost a lot 
to have a 4-core + 8GB RAM + 20GB disk VM and my work required 16-cores 
+ 32GiB RAM + 1TB disk at the time and now requires much more than that.

> https://aws.amazon.com/ec2/pricing/on-demand/
Anyway, thanks for your feedback,

   Tony.

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