Hitachi 100GB 7200 RPM HTE721010G9SA00 Manual Do Utilizador
Códigos do produto
HTE721010G9SA00
Travelstar E7K100 (SATA) Hard Disk Drive Specification
157
12.40.3 Device Attribute Thresholds data structure
The following defines the 512 bytes that make up the Attribute Threshold information. This data structure is
accessed by the host in its entirety using the S.M.A.R.T. Read Attribute Thresholds. All multibyte fields shown in
these data structures follow the ATA/ATAPI-6 specification for byte ordering, that is, that the least significant byte
occupies the lowest numbered byte address location in the field.
accessed by the host in its entirety using the S.M.A.R.T. Read Attribute Thresholds. All multibyte fields shown in
these data structures follow the ATA/ATAPI-6 specification for byte ordering, that is, that the least significant byte
occupies the lowest numbered byte address location in the field.
The sequence of active Attribute Thresholds will appear in the same order as their corresponding Attribute Values.
Table 104: Device Attribute Thresholds Data Structure
(*1) – See the following definitions
(*2) – Value varies by actual operating condition
(*3) – Filled with 00h
(*2) – Value varies by actual operating condition
(*3) – Filled with 00h
12.40.3.1 Data Structure Revision Number
This value is the same as the value used in the Device Attributes Values Data Structure.
12.40.3.2 Individual Thresholds Data Structure
The following defines the 12 bytes that make up the information for each Threshold entry in the Device Attribute
Thresholds Data Structure. Attribute entries in the Individual Threshold Data Structure are in the same order and
correspond to the entries in the Individual Attribute Data Structure.
Thresholds Data Structure. Attribute entries in the Individual Threshold Data Structure are in the same order and
correspond to the entries in the Individual Attribute Data Structure.
Description
Byte
Offset
Format
Value
Data Structure Revision Number
2
00h
binary
0010h
1st Device Attribute
12
02h
(*1)
(*2)
...
..
... ..
30th Device Attribute
12
15Eh
(*1)
(*2)
Reserved
18
16Ah
(*3)
Vendor specific
131
17Ch
(*3)
Data structure checksum
1
1FFh
(*2)
512
Table 105: Individual Threshold Data Structure
Description
Byte
Offset
Format
Attribute ID Number (01h to FFh)
1
00h
binary
Attribute Threshold (for comparison with
Attribute Values from 00h to FFh)
1
01h
binary
00h - "always passing" threshold value to
be used for code test purposes
01h - minimum value for normal operation
FDh - maximum value for normal operation
FEh - invalid for threshold value
FFh - "always failing" threshold value to
be used for code test purposes
Reserved (00h)
10
02h
binary
Total Bytes
12