Messages in this thread | | | Date | Mon, 04 Feb 2008 19:42:34 -0500 | From | Jeff Garzik <> | Subject | Re: Integration of SCST in the mainstream Linux kernel |
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Linus Torvalds wrote: > On Mon, 4 Feb 2008, Matt Mackall wrote: >> But ATAoE is boring because it's not IP. Which means no routing, >> firewalls, tunnels, congestion control, etc. > > The thing is, that's often an advantage. Not just for performance. > >> NBD and iSCSI (for all its hideous growths) can take advantage of these >> things. > > .. and all this could equally well be done by a simple bridging protocol > (completely independently of any AoE code). > > The thing is, iSCSI does things at the wrong level. It *forces* people to > use the complex protocols, when it's a known that a lot of people don't > want it. > > Which is why these AoE and FCoE things keep popping up. > > It's easy to bridge ethernet and add a new layer on top of AoE if you need > it. In comparison, it's *impossible* to remove an unnecessary layer from > iSCSI. > > This is why "simple and low-level is good". It's always possible to build > on top of low-level protocols, while it's generally never possible to > simplify overly complex ones.
Never discount "easy" and "just works", which is what IP (and TCP) gives you...
Sure you can use a bridging protocol and all that jazz, but I wager, to a network admin yet-another-IP-application is easier to evaluate, deploy and manage on existing networks.
Jeff
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