IBM IC35L020 - Deskstar 20 GB Hard Drive - Device Attribute Thresholds Data Structure; Figure 124. Attribute ID Numbers; Figure 125. Device Attribute Thresholds Data Structure; Figure 126. Individual Threshold Data Structure

15.32.13 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 are in byte ordering—that is 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.
512
1FFh1Data structure checksum
00h17Ch131Vendor specific
00h16Ah18Reserved
15Eh1230th Device Attribute
.....
.....
02h121st Device Attribute
0010h00h2Data Structure Revision Number
ValueOffsetByteDescription
Figure 125. Device Attribute Thresholds Data Structure
15.32.13.1 Data Structure revision number
This value is the same as the value used in the Device Attributes Values Data Structure.
15.32.13.2 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 is in the
same order and correspond to the entries in the Individual Attribute Data Structure.
12Total bytes
02h10Reserved (00h)
01h1Attribute Threshold
00h1Attribute ID Number (01h to FFh)
OffsetByteDescription
Figure 126. Individual Threshold Data Structure
15.32.13.3 Attribute ID numbers
Attribute I D Numbers supported by the device are the same as Attribute Values Data Structures.
Deskstar 60 GXP Hard disk drive specification
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