IBM IC35L036UWDY10 Hard Drive Specifications - Page 173

SEND DIAGNOSTIC 1Dh, Reserved = 0, VU = 0, Parameter List Length, Unt0fl, Dev0fl, SlfTst, RSVD=0

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8.34 SEND DIAGNOSTIC (1Dh) Byte 0 1 2 3 4 5 Bit 7 6 5 4 3 2 1 0 Command Code = 1Dh Function Code PF RSVD=0 SlfTst Dev0fl Unt0fl Reserved = 0 (MSB) Parameter List Length (LSB) VU = 0 Reserved = 0 FLAG LINK Figure 157. SEND DIAGNOSTIC The SEND DIAGNOSTIC command requests the drive to perform its self-diagnostic test or to perform a function based on a page of information sent in a Data Out phase during the command. ! PF (Page Format) bit set to one indicates the data sent by the Initiator conforms to the page structure as specified in SCSI-2 standard. This bit must be set to one if the SlfTst bit is set to zero. This bit is ignored by the drive if the SlfTst bit is set. ! SlfTst set to one indicates that the device performs its internal self test. If SlfTst is one, Function code field is ignored. If SlfTst is set to zero, the content of Function code is specified in Function code field values. Ultrastar 146Z10 hard disk drive specifications 157

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8.34 SEND DIAGNOSTIC (1Dh)
LINK
FLAG
Reserved = 0
VU = 0
5
(MSB)
Parameter List Length
(LSB)
3
4
Reserved = 0
2
Unt0fl
Dev0fl
SlfTst
RSVD=0
PF
Function Code
1
Command Code = 1Dh
0
0
1
2
3
4
5
6
7
Bit
Byte
Figure 157. SEND DIAGNOSTIC
The SEND DIAGNOSTIC command requests the drive to perform its self-diagnostic test or to perform a
function based on a page of information sent in a Data Out phase during the command.
!
PF (Page Format)
bit set to one indicates the data sent by the Initiator conforms to the page structure
as specified in SCSI-2 standard. This bit must be set to one if the SlfTst bit is set to zero. This bit is
ignored by the drive if the SlfTst bit is set.
!
SlfTst
set to one indicates that the device performs its internal self test.
If SlfTst is one,
Function
code field is ignored.
If SlfTst is set to zero, the content of Function code is specified in Function code
field values.
Ultrastar 146Z10 hard disk drive specifications
157