>> The original post was for ATA over *ethernet*, not IP.
>> I looked at the spec. It is extremely light weight.
>> Conceivably it could be implemented in an ASIC.
>
> iSCSI has a lot of promise, both in terms of cheaper SAN
> infrastructure and in terms of wide-area functionality.  It's

nice idea to make money. first complicate, then promise to make it 
cheaper. creating 2 different networks instead of one.

there is no need for any SAN solutions other that just exporting 
filesystem over normal ethernet (maybe gigabit).