IBM IC25N020ATDA04 Hard Drive Specifications - Page 189
Individual Attribute Data Structure, Attribute ID Numbers, Attribute Name
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13.33.2.2 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 either 0 Bit 6-15 Reserved (all 0) Attribute Value (valid values from 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 Byte 1 2 01h 1 1 6 1 12 Offset 00h 01h Value binary bit flags 03h binary 04h binary 05h binary 0Bh binary Figure 119. 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. 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 Travelstar 48GH, 30GN & 15GN hard disk drive specifications 175