Hitachi HTS541040G9AT00 Specifications - Page 189
Individual Attribute Data Structure
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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