> Sort of, because many CCS (SCSI-1, but not SCSI-2) drives support T'qing fine.
> 
> What issue are you trying to address hee?

I have two disks responding like this:

  sd0 at scsibus0 target 3 lun 0: <MICROP, 1588-15MBSUN0669, SN0C> SCSI1 0/direct fixed
  sd0(esp0:3:0):  Check Condition on CDB: 0x1b 00 00 00 01 00
      SENSE KEY:  Aborted Command
       ASC/ASCQ:  Overlapped Commands Attempted

There's no MESSAGE REJECT. The target goes from the selection phase
the status phase indicating a check condition.

-pk