[Q] simple question about a Task.

[Kim Tae-Hyung <kotaeji@pilots.postech.ac.kr>]

Hi. I have a very basic question about iSCSI.

I know A SCSI Task is a SCSI command or possibly a linked set of SCSI
commands.  This means that one task may consist of several SCSI
commands. 

And the "Initiator Task Tag" uniquely identifies the task in iSCSI. 

Here, let's assume that a task consists of three SCSI READ CDBs. And
initiator sends three iSCSI SCSI Command(0x01) corresponding to each
SCSI READ CDB. Three iSCSI SCSI command PDU MUST have same 'Initiator
Task Tag'fields, because they belong to the same Task.

And, some time later, a SCSI Data (READ) PDU arrived at initiator. How
can the initiator know which SCSI Command this data PDU belongs to ?
I cannot find any field in SCSI Data (READ) PDU which can make me
happy. 

Thanks in advance.