Hitachi HTS543212L9A300, HTS543232L9A300 manual 14.40.3Device Attribute Thresholds Data Structure

5K320 SATA OEM Specification

14.40.2.11Self-test completion time

These bytes are the minimum time in minutes to complete self-test.

14.40.2.12Data 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.

14.40.3Device 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 multi-byte fields shown in these data structures follow the ATA/ATAPI-6 specification for byte ordering, namely 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		Bytes		Offset		Format	Value
Data Structure Revision Number			2		00h	binary	0010h
1st Attribute Threshold			12		02h	(*1)	(*2)
...			..
...			..
30th Attribute Threshold			12		15Eh	(*1)	(*2)
Reserved			18		16Ah		(*3)
Vendor specific			131		17Ch		(*3)
Data structure checksum			1		1FFh		(*2)
			512
(*1)	- See following definitions
(*2)	- Value varied by actual operating condition
(*3)	- Filled with 00h

Table 115 Device Attribute Thresholds Data Structure

14.40.3.1Data Structure Revision Number

This value is the same as the value used in the Device Attributes Values Data Structure.

14.40.3.2Individual 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.

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