iADT revised proposal posted (T10/08-469r4)

Paul Suhler Paul.Suhler at Quantum.Com
Fri May 30 09:35:56 PDT 2008

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I have uploaded T10/08-469r4, the next revision of the iADT proposal, for
discussion at next Wednesday's ADI working group teleconference.  A meeting
announcement will be forthcoming later today
In this version, I've inserted an "interconnect layer" between the physical
layer and ADT link layer.  This appears to work while avoiding changes to the
link, transport, and SCSI application layer.  An "ADT port" is now an
abstraction that connects with one other ADT port via an ADT serial, ADT TCP,
or ADT UDP interconnect port.  At its upper edge, the interconnect layer
provides a standard set of protocol services to the ADT port to allow it to
connect with another ADT port, send and receive, and disconnect.  Operation
of each service is defined for each of the three interconnect layer
alternative.  At its lower edge, the interconnect layer uses hardware
connections defined by either the ADT serial bus or the (newly-defined) ADT
Ethernet bus.
The ADT Ethernet bus proposes electrical characteristics for optional LED
output connections.
Paul A. Suhler | Firmware Engineer | Quantum Corporation | Office:
949.856.7748 | paul.suhler at quantum.com
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