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Toshiba Corporation Digital Media Network Company
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© 2003, Copyright TOSHIBA Corporation All Rights Reserved
Byte Description
0 Attribute ID number 01 - FFh
1-2 Status flag
bit 0 (pre-failure/advisory bit)
bit 0 = 0: If attribute value is less than the threshold, the drive is in advisory
condition.
Product life period may expired.
bit 0 = 1: If attribute value is less than the threshold, the drive is in pre-failure
condition. The drive may have failure.
bit 1 (on-line data collection bit)
bit 1= 0: Attribute value will be changed during off-line data collection operation.
bit 1= 1: Attribute value will be changed during normal operation.
bit 2 (Performance Attribute bit)
bit 3 (Error rate attribute bit)
bit 4 (Event Count Attribute bit)
bit 5 (Self-Preserving Attribute bit)
bit 6-15 Reserved
3 Attribute value 01h-FDh *1
00h, FEh, FFh = Not in use
01h = Minimum value
64h = Initial value
Fdh = Maximum value
4 Worst Ever normalized Attribute Value
( valid values from 01h-FEh )
5-10 Raw Attribute Value
Attribute specific raw data
( FFFFFFh - reserved as saturated value )
11 Reserved ( 00h )
*1 For ID=199 CRC Error Count
Initial value = C8h
ID Attribute Name
0 Indicates that entry in the data structure is not used
1 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 Drive Power Cycle Count
192 Power-off Retract Count
193 Load Cycle Count
194 Temperature
196 Re-allocated Sector Event
197 Current Pending sector Count
198 Off-Line Scan Uncorrectable Sector Count
199 CRC Error Count
220 Disk Shift
222 Loaded Hours
223 Load Retry Count
224 Load Friction
226 Load in Time
240 Write Head