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. Linus - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
