Hitachi HTS541010G9AT00 Specifications - Page 168

Device Attribute Thresholds data structure

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12.38.3 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. The sequence of active Attribute Thresholds will appear in the same order as their corresponding Attribute Values. Table 103: Device Attribute Thresholds Data Structure Description Data Structure Revision Number 1st Device Attribute ... ... 30th Device Attribute Reserved Vendor specific Data structure checksum Byte 2 12 .. .. 12 18 131 1 512 Offset 00h 02h Format binary (*1) Value 0010h (*2) 15Eh 16Ah 17Ch 1FFh (*1) (*2) (*3) (*3) (*2) (*1) - See the following definitions (*2) - Value varies by actual operating condition (*3) - Filled with 00h Travelstar 5K100 (Serial ATA) Hard Disk Drive Specification 156

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Travelstar 5K100 (Serial ATA) Hard Disk Drive Specification
156
12.38.3
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.
The sequence of active Attribute Thresholds will appear in the same order as their corresponding Attribute Values.
Table 103: Device Attribute Thresholds Data Structure
(*1) – See the following definitions
(*2) – Value varies by actual operating condition
(*3) – Filled with 00h
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