IBM DDRS-39130 - Ultrastar 9.1 GB Hard Drive Specifications page 77

Byte
7 6
0
1 FOV DPRY
2 (MSB)
3
Figure 56. Format of Defect List Header. Format of the defect list header sent during the data out phase when
FmtData set to one.
The Target has a limited implementation of the Format Option bits located in Bits 2 through 7 of Byte 1 of
the Defect List Header (See Figure 56). If the Initiator attempts to select any function not implemented by
the Target, the Target terminate the command with Check Condition Status. The sense key is set to Illegal
Request and the additional sense code is set to Invalid Field in Parameter List.
FOV (Format Options Valid) bit of zero causes the Target to verify that the setting for the D P R Y
(Disable Primary), D C R T (Disable Certification), STPF (Stop Format), IP (Initialize Pattern), and DSP
(Disable Saving Parameters) bits are zero. If any of these bits are not zero, the Target terminates the
command with Check Condition Status. The sense key is set to Illegal Request and the additional sense
code is set to Invalid Field in Parameter List.
Note: When FOV bit is one there are three combinations of the DPRY, DCRT, STPF, IP and DSP
bits allowed. Any other combinations return a Check Condition Status With a sense key of Illegal
Request and an additional sense code of Invalid Field In Parameter List. The supported combination
are:
DPRY=0 DCRT=1
DPRY=1 DCRT=1
DPRY=0 DCRT=0
DPRY (Disable Primary) bit set to zero indicates that the Target does not use portions of the medium
identified as defective in the primary defect PList for Initiator addressable logical blocks. If the Target
cannot locate the PList or it cannot determine whether a PList exists, the target terminates the Format
Unit command as described for S T P F = 1 . A D P R Y bit of one indicates that the Target does not use
the Plist to identify defective areas of the medium. The Plist is not deleted.
DCRT (Disable Certification) bit of ZERO indicates that the Target performs a medium certification
operation and generates a Certification List (CList) and the Target adds the Clist to the Glist. A D C R T
bit of one indicates that the Target does not generate a CList (Certification List ) nor perform a certif-
ication process while executing the Format Unit Command.
STPF (Stop Format) bit must be set to one. If one or both of the following conditions occurs, the
Target terminates the Format Unit command with Check Condition Status. The sense key is set to
Medium Error and the additional sense code is set to either Defect List Not Found if the first condition
occurred, or Defect List Error if the second condition occurred.
The Target cannot locate a required defect list nor determine that the list exists.
The Target encounters an unrecoverable error while accessing a required defect list.
IP (Initialization Pattern) bit must be set to zero. The Target initializes all data with zeros.
DSP (Disable Saving Parameters) bit must be set to zero. The Target saves all the Mode Select savable
parameters during the format operation.
Bit
5 4 3
Reserved = 0
DCRT STPF IP = 0 DSP = 0 Immed
Defect List Length
STPF=1 IP=0
STPF=1 IP=0
STPF=1 IP=0
2 1 0
0
(LSB)
DSP=0
DSP=0
DSP=0
SCSI C O M M A N D SET
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