Individual Attribute Data Structure - Hitachi HTS541616J9SA00 Specifications

14.40.2.2
The following defines the 12 bytes that make up the information for each Attribute entry in the
Device Attribute Data Structure.
Description
Attribute ID Number (01h to FFh)
Status Flags
Bit 0 Pre-Failure/Advisory
Bit 1 On-line Collection
Bit 2-5 Reserved (may either 0 or 1)
Bit 6-15 Reserved (all 0)
Attribute Value (valid values from 01h to FEh)
00h invalid for attribute value – not to be used
01h minimum value
64h initial value for all attributes prior to any data collection
FDh maximum value
FEh value is not valid
FFh invalid for attribute value - not to be used
Reserved (may not be 0)
Reserved (may not be 0)
Reserved (00h)
Total Bytes
Figure 84 Individual Attribute Data Structure
Attribute ID Numbers: Any non-zero value in the Attribute ID Number indicates an active attribute.
The device supports following Attribute ID Numbers. Those marked with (*) indicate that
corresponding Attribute Values can be either collected on-line or off-line.
ID Attribute Name
0 Indicates that this entry in the data structure is not used
1 Raw Read Error Rate (*)
2 Throughput Performance (*)
3 Spin Up Time
4 Start/Stop Count
5 Reallocated Sector Count
7 Seek Error Rate
8 Seek Time Performance (*)
9 Power-On Hours Count
10 Spin Retry Count
Device Power Cycle Count
12
G Sense error rate
191
Power off retract count
192
Load/Unload cycle count
193
194 Device Temperature
196 Reallocation Event Count
197 Current Pending Sector Count
198 Off-Line Scan Uncorrectable Sector Count
199 Ultra DMA CRC Error Count
Status Flag Definitions:
Travelstar 5K160 (SATA) Hard Disk Drive Specification

Individual Attribute Data Structure

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Bytes Offset Format
1 00h binary
2 01h bit flags
1 03h binary
1 04h binary
6 05h binary
1 0Bh binary
12