[gpfsug-discuss] Connecting IBM ESS 3200 to 10 Gb Ethernet

[Tagliavini, Enrico]

Just a gentle reminder: please always be respectful. People might have reason you didn't think of, or might simply make a mistake. Not
a good reason to be respectful. This list is supposed to be a place for open communication and help between users.

Thank you.
Kind regards.

-- 

Enrico Tagliavini
Systems / Software Engineer

enrico.tagliavini at fmi.ch

Friedrich Miescher Institute for Biomedical Research
Informatics

Maulbeerstrasse 66
4058 Basel
Switzerland





On Mon, 2023-06-05 at 18:03 +0100, Jonathan Buzzard wrote:
> On 05/06/2023 17:41, Alec wrote:
> > 
> > Many network storage engineers simply don't understand bandwidth (or the 
> > importance of port groups)...  With an ESS you are talking GIGA*BYTES* 
> > per second and storage and networking architects simply see 10Gbe and 
> > assume that's good enough. A 10Gbe connection can do about 1.4GB/s..  
> > 100Gbe can do 12.5GB/s.   To the wrong engineer you can explain this 
> > until you're blue in the face and they won't get it.  You need to divide 
> > Gbe by 8 to get about the GB/s throughput.  Explain to them that a USB-C 
> > interface is capable of 10Gbe... So you're throttling millions of 
> > dollars in technology to the speed of a consumer grade USB-C interface.  
> > When infact an ESS can drive at least 2x100Gbe to saturation.
> > 
> > I don't have an ESS but a classic SAN array and Spectrum Scale and I can 
> > saturate 32*8Gbe fiber connections.
> > 
> 
> Your kidding right? That's basic competency for the job!!!
> 
> 
> JAB.
>