Comments on: 3-for-2: The FCoE Bandwidth Bonus

By: FCoE vs. iSCSI – Making the Choice – Stephen Foskett, Pack Rat

FCoE vs. iSCSI – Making the Choice – Stephen Foskett, Pack Rat — Fri, 20 May 2011 16:08:55 +0000

[...] I/O operations. Although iSCSI over 10 Gb Ethernet can carry 50% more data than 8 Gb Fibre Channel (thanks to more efficient encoding), it also benefits from drastically lower latency. It can handle 50% more packets than 8 Gb Fibre [...]

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By: J Metz

J Metz — Wed, 04 May 2011 05:13:16 +0000

Thanks for reading and taking the time to reply, Erwin. As the tenor of the piece indicated, I was referring to ISLs and the bandwidth for dedicated FCoE links that would connect to MDS FC storage. Given that’s the case, there is no sharing of bandwidth (i.e., no LAN traffic) and so the situation stands as stated.

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By: Erwin van Londen

Erwin van Londen — Wed, 04 May 2011 03:50:42 +0000

J, even if you take into account the 10G Ethernet speed it’s still divided over IP, FC and one or more other protocols. Please do take that into consideration as well. So if your 10G link requires 5G of IP traffic your theory goes down the drain.

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By: J Metz

J Metz — Sat, 30 Apr 2011 16:38:25 +0000

Thank you!

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By: David 13

David 13 — Sat, 30 Apr 2011 10:42:58 +0000

nicely wrote!

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