Re: iSCSI : EnableACA

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

> > What about a command in flight (that
> > was the first that had a NACA bit)?
> 
> Such I/Os would be errored back with "ACA Active" SCSI Status.

Oops. I believe your question was regarding the first NACA set CDB
in-flight and not yet in the task set at the time of the task mgmt cmd.

Such a scenario implies the I/Os prior to that first NACA set I/O would
have had no ordering constraints. In this case, no ACA is established for
the task mgmt cmd prior to the first NACA I/O. [CAC is established.]

The CAC is cleared on the next I/O [other than INQUIRY and REPORT LUNS] 
that arrives after CAC was established. Subsequent arrival of a NACA set
I/O is processed normally and no loss of ordering occurs in this case.

Did I miss something about this scenario (?)

Regards,
Santosh

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Santosh Rao
Software Design Engineer,
HP, Cupertino.
email : santoshr@cup.hp.com
Phone : 408-447-3751
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