IBM DBCA-204860 Hard Drive Specifications - Page 160
Attribute ID Number 01h to FFh
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Description Bytes Offset Format 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 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 Figure 101. Individual Attribute Data Structure 12.30.2.2.1 Attribute ID Numbers: Any non-zero value in the Attribute ID Number indicates an active attribute. The device supports following Attribute ID Numbers. Those marked with (*) indicate that 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 152 OEM Specifications of DBCA-2xxxxx 2.5 inch H D D