Jeff Garzik wrote:
Alan Cox wrote:
better. So for example, I personally suspect that ATA-over-ethernet is way
better than some crazy SCSI-over-TCP crap, but I'm biased for simple and
low-level, and against those crazy SCSI people to begin with.
Current ATAoE isn't. It can't support NCQ. A variant that did NCQ and IP
would probably trash iSCSI for latency if nothing else.
AoE is truly a thing of beauty. It has a two/three page RFC (say no more!).
But quite so... AoE is limited to MTU size, which really hurts. Can't
really do tagged queueing, etc.
iSCSI is way, way too complicated.
I fully agree. From one side, all that complexity is unavoidable for
case of multiple connections per session, but for the regular case of
one connection per session it must be a lot simpler.
And now think about iSER, which brings iSCSI on the whole new complexity
level ;)
It's an Internet protocol designed
by storage designers, what do you expect?
For years I have been hoping that someone will invent a simple protocol
(w/ strong auth) that can transit ATA and SCSI commands and responses.
Heck, it would be almost trivial if the kernel had a TLS/SSL implementation.
Jeff
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