Hitachi HTS541040G9AT00 Specifications - Page 189

Individual Attribute Data Structure

Page 189 highlights

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 Byte Attribute ID Number (01h to FFh) 1 Status Flags 2 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) 1 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) 1 Reserved (may not be 0) 6 Reserved (00h) 1 Total Bytes 12 Offset 00h 01h 03h 04h 05h 0Bh Value binary bit flags binary binary binary binary 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 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 12 Device Power Cycle Count 191 G Sense 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 Travelstar 5K100 Hard Disk Drive Specification 175

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Travelstar 5K100 Hard Disk Drive Specification
175
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.
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.
Description
Byte
Offset
Value
Attribute ID Number (01h to FFh)
1
00h
binary
Status Flags
2
01h
bit 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)
1
03h
binary
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)
1
04h
binary
Reserved (may not be 0)
6
05h
binary
Reserved (00h)
1
0Bh
binary
Total Bytes
12
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
12
Device Power Cycle Count
191
G Sense 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