Figure 114. Device Attribute Thresholds Data Structure - IBM DJSA-210 - Travelstar 10 GB Hard Drive Specifications

13.32.2.10 Self-test failure check point
This byte indicates the section of self-test where the device detected a failure.
13.32.2.11 Self-test completion time
These bytes are the minimum time in minutes to complete the self-test.
13.32.2.12 Data Structure Checksum
The Data Structure Checksum is the 2's compliment of the result of a simple 8-bit addition of the first 511
bytes in the data structure.
13.32.3 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-5 specification for byte ordering. This means 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.
Description
Data Structure Revision Number
1st Device Attribute
...
...
30th Device Attribute
Reserved
Vendor specific
Data structure checksum
(*1) – See the following definitions
(*2) – Value varied by actual operating condition

Figure 114. Device Attribute Thresholds Data Structure

13.32.3.1 Data Structure revision number
This value is the same as the value used in the Device Attributes Values Data Structure.
13.32.3.2 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.
Description
Attribute ID Number (01h to FFh)
Travelstar 32GH/30GT/20GN hard disk drive specifications
Byte
2
12
..
..
12
18
131
1
512
Byte
169
Offset Format Value
00h binary 0010h
02h (*1)
15Eh (*1)
16Ah
17Ch
1FFh
Offset Format
1 00h binary
(*2)
(*2)
00h
00h
(*2)