Subject: Re: SCSI network
To: Kenneth D. Merry <>
From: Matthew Jacob <>
List: tech-kern
Date: 10/01/1999 09:32:00
> Matthew Jacob wrote...
> > 
> > The actual sensible way to do this is IP encapsulation over FibreChannel
> > SCSI. An IP stack for Fibre Channel is a big pain in the ass. Target Mode
> > for Fibre Channel is pretty easy. In fact, I'm about half ported for this
> > into this sillyass Qlogic driver. You get a very large address space,
> > don't have to worry about ID conflicts, and while it isn't as cheap as
> > parallel SCSI, it isn't all *that* expensive and you get 1024Gbit
> > transport with a 2k framesize (but no particular reason why can't layer
> > arbitrary MTUs on top of that).
> Although with Jumbo-frame capable GigE adapters available for $300, IP over
> fibre channel may not be worth the hassle.

Agreed- but it's not quite fair to state that it's 300$- it is 300$ *plus*
per-port costs for a Gig Hub, right?

The only reason for doing IP over FC is if you already have a SAN for
FC-SCSI in place, and if that is the case, there's no particularly great
reason to use the FC-IP ULP because of the addeded software nonsense for