RE: iSCSI: draft 7: iSCSI response and SCSI sense data

["Julian Satran" <Julian_Satran@il.ibm.com>]

David,

That's what will probably end-up doing.

Julo

Black_David@emc.com on 02-08-2001 17:21:25

Please respond to Black_David@emc.com

To:   Julian Satran/Haifa/IBM@IBMIL, ips@ece.cmu.edu
cc:
Subject:  RE: iSCSI: draft 7: iSCSI response and SCSI sense data




> Could you please quote us which part of SAM-2 this is
> violating.

As Rob Elliott said:

> Furthermore, SAM-2 requires that status be ignored when the service
> response indicates an error (SAM-2 revision 18 section 5.1):
>   "Status: A one-byte field containing command completion status
>   (see 5.3). If the command ends with a service response of
>   SERVICE DELIVERY OR TARGET FAILURE, the application client
>   shall consider this parameter to be undefined."
>
> I think iSCSI's current wording may violate this rule.

So, just generate the CHECK CONDITION and don't try to use the
iSCSI Service Response to further qualify it, as Mallikarjun
suggests:

> Robert Elliott pointed out a violation by iSCSI in trying to
> additionally qualify ASC, ASCQ with its response codes.  I suggest
> that dropping this "additional description" attempt in all these
> cases is all iSCSI needs to do to meet SAM's expectations.

Thanks,
--David

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