RE: iSCSI : Initiators expected to fake CHECK CONDITIONS.

[Stephen Byan <Stephen.Byan@quantum.com>]

I completely concur with Stephen Bailey. Protocol errors belong to a
different name-space than SCSI status. iSCSI cannot hijack SCSI status codes
for protocol errors. iSCSI could union it's protocol-dependent error field
with the SCSI status field, as long as protocol-dependent errors are defined
as returning a service response of SERVICE DELIVERY OR TARGET FAILURE. (SAM
clearly states that the SCSI status value is invalid if the service response
is SERVICE DELIVERY OR TARGET FAILURE.)

If the protocol error field is unioned with the SCSI status field, it should
be given a different member name - similar to an anonymous union in C - in
order to prevent confusion regarding its semantics. In particular, there is
no allegiance created for protocol errors.

Regards,
-Steve

Steve Byan
<stephen.byan@quantum.com>
Design Engineer
MS 1-3/E23
333 South Street
Shrewsbury, MA 01545
(508)770-3414
fax: (508)770-2604