Technical information

HGST Ultrastar C15K600 Hard Disk Drive Specification
93
- IP (Initialization Pattern) bit set to zero specifies that an initialization pattern descriptor is not included and all
customer data will be initialized to zeroes. An IP bit of one specifies that an Initialization Pattern Descriptor is
included in the FORMAT UNIT parameter list following the parameter list header.
18.4.2
Initialization Pattern
Table 65 Initialization Pattern Descriptor
Byte
Bit
7
6
5
4
3
2
1
0
0
IP Modifier = 0
SI
Reserved = 0
1
Initialization Pattern Type = 0 or 1
2 - 3
Initialization Pattern Length (n-3)
4
Initialization Pattern
...
Initialization Pattern
...
n
- IP Modifier must be set to 0, indicating that the drive will not modify the initialization pattern.
- SI (Security Initialize) bit set to one specifies that all customer data sectors, including those that have been
previously reassigned, will be initialized. SI set to zero specifies that only the current customer accessible
sectors will be formatted.
- Initialization Pattern Type
- Type of 0 will use a default initialization pattern.
- Type of 1 specifies that the Initialization Pattern specified shall be repeated as required to fill each logical
block.
- Initialization Pattern Length specifies the number of bytes that follow in the Initialization Pattern field, and must
be less than or equal to the current block size, and non-zero.
- If Initialization Pattern Type is 0 and the Initialization Pattern Length is not set to 0, Check Condition status will
be returned, with the sense key set to Illegal Request and the additional sense code set to Invalid Field in
Parameter List
- If Initialization Pattern Type is 1 and the Initialization Pattern Length is set to 0, Check Condition status will be
returned, with the sense key set to Illegal Request and the additional sense code set to Invalid Field in
Parameter List.
- DSP (Disable Saving Parameters) bit when zero indicates the target is to save all the current MODE SELECT
savable parameters during the format operation. When the bit is one, the target is not to save the current MODE
SELECT savable parameters.
- Immed (Immediate) bit set to zero requests that status be returned at the end of the format operation. An
immediate bit set to one requests that status be returned immediately following CDB validation and transfer of
data in the Data Out phase. If the format operation, with the immediate bit set to one, terminates in error,
DEFERRED ERROR SENSE data is generated.
- Defect List Length field specifies the total length in bytes of the defect descriptors that follow (not including the
Initialization Pattern Descriptor, if any). Up to 1024 defect descriptors are allowed. The Defect List Length must
be equal to four times the number of defect descriptors for BLOCK format, or eight times the number of defect
descriptors for BYTES FROM INDEX and PHYSICAL SECTOR formats. Otherwise the command is terminated
with Check Condition status with the sense key set to Illegal Request and the additional sense code set to
Invalid Field in Parameter List.