[Info-vax] VMS QuickSpecs

[Stephen Hoffman]

On 2015-08-14 12:18:42 +0000, Dirk Munk said:

> Look at high-end EMC storage, a storage array will support a maximum of 
> 256 16Gb/s FC ports or a maximum of 128 10Gb/s ethernet ports. Do the 
> maths.
> 
> 32Gb/s fibrechannel is around the corner, 128Gb/sec fibrechannel is on 
> the roadmap.
> 
> The ethernet protocol for FCoE is far less robust as FC, FCoE didn't 
> make it, iSCSI adds the overhead and latency of the IP stack, in most 
> situations we don't need it.
> 
> FC still is technically superior to anything ethernet can offer at the moment.


You're posting about storage controllers here, and not storage 
networking via FC.

You're also pointing to a company that makes a whole lot of its 
revenues from FC storage, and rather less from 40 GbE.

How many sites are running FC in production, how many have FC cabling 
outside their DCs, and how many of those do not have substantial 
investments in Ethernet and IP at very high speeds in their DCs, and 
with Ethernet and IP links distributed... all over?   Probably... zero?



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