Read Element Status Command (B4H) - Seagate Ultra160 Product Manual

SCSI Interface Product Manual, Rev. B
IN phase when the ALLOCATION LENGTH bytes have been transferred or when all available defect data
has been transferred to the initiator, whichever is less.
[5] See Table 61, "CONTROL field," in Section 7.2.1.
The READ DEFECT DATA (12) list header (see Table 196) contains an eight byte header, followed by zero or
more defect descriptors.
Table 196: READ DEFECT DATA (12) list header
Bit 7
Byte
0 Reserved
1
2 Reserved
3 Reserved
4 (MSB)
5
6
7
0
n
[1] The drive interprets the P and G bits (bits 4 and 3 of byte 1 of the CDB) as follows:
Bit P Bit G
0 0 Return Defect List header only. Target returns only the Defect List header.
0 1 Return the growth "G" list only. This list reflects the growth or "G" list as defined in Section
8.5.
1 0 Return the manufacturer's original ETF list only. This list reflects the manufacturer's origi-
nal ETF list. These defects may or may not have been reallocated, depending on the last
format command received (the last format may or may not have requested the P list flaws
be reallocated during the format function).
1 1 Return all lists. The returned list contains all of the requested drive's defect lists (i.e., P, G,
C, and D) regardless of whether these lists have been reallocated by the drive.
[2] 1 0 0 defines a list in the Bytes from Index format.
1 0 1 defines a list in the Physical Sector format.
[3] If the P and G bits are 0 0, the DEFECT LIST LENGTH will be zero and no Defect Descriptor Bytes are
sent to the initiator. See tables 76 and 77 for format of Defect Descriptor Bytes.
8.27

READ ELEMENT STATUS command (B4h)

Not described in this manual. If received, a CHECK CONDITION status is sent.
6 5
Reserved
DEFECT LIST LENGTH [3]
4 3
P LIST [1] G LIST [1]
Defect Descriptors [3]
2 1
DEFECT LIST FORMAT [2]
(LSB)
265
0