Hitachi HTS541680J9AT00 Specifications - Page 157

Travelstar 5K160 (PATA) Hard Disk Drive Specification 14.39.2.1 Data Structure Revision Number The Data Structure Revision Number identifies which version of this data structure is implemented by the device. This revision number will be set to 0005h. This revision number identifies both the Attribute Value and Attribute Threshold Data structures. 14.39.2.2 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 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) 00h invalid for attribute value - not to be used 01h minimum value 1 03h binary 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 Figure 107 Individual Attribute Data Structure 1 04h binary 6 05h binary 1 0Bh binary 12 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 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 157/188