Maxtor ATLAS 10K III - Manual (Page 226)

SCSI Description
5-162 Maxtor Atlas 10K III
SelfTest
If the PF bit is 0 and the SelfTest bit is 1, the drive runs its self-test routine. GOOD
status is returned to the initiator if the self-test passes. CHECK CONDITION status
is returned along with any available sense data if the self-test fails.
This field is ignored if the PF bit is 1.
DevOnl Any value in this field is ignored by the drive.
UnitOfl Any value in this field is ignored by the drive.
Parameter List
Length
When the Parameter List Length field is non-zero, the value specifies the length (in
bytes) of the parameter list that is to be transferred from the initiator to the drive
during the command's data-out buffer transfer.
This field is only valid when the PF bit = 1 and must be 0 when the PF bit is 0.
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