It's often the case that vendors sell more than what is needed for profit maximizing, unless there is a genuine high speed requirement. Such a way that is so used to the general requirement that not to bother the basics.
/Sathya On Mon, 5 Jun 2023, 22:48 Alec, <[email protected]> wrote: > Sadly no I'm not kidding... Network engineers tend to be more focused on > availability and general needs not special needs of a high speed data > environment and so I give them a pass. > > As I used to say SAN engineers were Unix engineers who couldn't do Unix.. > so they are what they are. > > I can't tell you how many times I've seen millions of dollars or hardware > under perming to a tiny fraction because someone didn't cable it with > enough cables to do the job. Like constrained ISL or something... Or > they'll just discount the two storage ports that are RED with saturation > and say 99% of ports are green... So no problem here. > > Alec > > Alec > > On Mon, Jun 5, 2023, 10:05 AM Jonathan Buzzard < > [email protected]> 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. >> >> -- >> Jonathan A. Buzzard Tel: +44141-5483420 >> HPC System Administrator, ARCHIE-WeSt. >> University of Strathclyde, John Anderson Building, Glasgow. G4 0NG >> >> >> _______________________________________________ >> gpfsug-discuss mailing list >> gpfsug-discuss at gpfsug.org >> http://gpfsug.org/mailman/listinfo/gpfsug-discuss_gpfsug.org >> > _______________________________________________ > gpfsug-discuss mailing list > gpfsug-discuss at gpfsug.org > http://gpfsug.org/mailman/listinfo/gpfsug-discuss_gpfsug.org >
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