Individual Attribute Data Structure - Hitachi 7K100 - Travelstar - Hard Drive Specifications

13.39.2.2 Individual Attribute Data Structure

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 be 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
Attribute ID Numbers: Any nonzero value in the Attribute ID Number indicates an active attribute. The device
supports following Attribute ID Numbers. The names marked with (*) indicate that the corresponding Attribute
Values can be either collected on-line or off-line.
ID
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
12 Device Power Cycle Count
191 Gsense Error Rate
192 Power Off Retract Count
193 Load/Unload Cycle Count
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
Attribute Name
Travelstar 7K100 Hard Disk Drive Specification
170
Byte Offset
1 00h
2 01h bit flags
1 03h
1 04h
6 05h
1 0Bh
12
Value
binary
binary
binary
binary
binary