Re: iSCSI : DataRN issues.

[Santosh Rao <santoshr@cup.hp.com>]

Hi Julian,

Some further comments on this.

Thanks,
Santosh

julian_satran@il.ibm.com wrote:

> Section 1.2.2.3. Data PDU Numbering
> ============================
> What is the scope of DataRNs ? Is this maintained per task or per
> connection or per session ? This should be explicitly stated in this
> section as is done in earlier sections for CmdRN and StatRN.
> [js] per command and it says so [/js]

I believe that the DataRN feature and all its related overheads add a level of
complexity that is going to discourage both targets and initiators from using
this. I am yet to see anyone state sufficient benefits of this feature that
can justify this complexity. Moreover, the benefit it may provide [if any, and
if somebody does use it] is in the error path context and its overheads hurt
the performance path.

Therefore, in the interests of keeping iSCSI simple, I would like to request
removal of all references to DataRN and DataNumber.

Thanks,
Santosh
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