Hitachi HTS541680J9AT00 Specifications - Page 158

Travelstar 5K160 (PATA) Hard Disk Drive Specification 196 Reallocation Event Count 197 Current Pending Sector Count 198 Off-Line Scan Uncorrectable Sector Count 199 Ultra DMA CRC Error Count Status Flag Definitions: Bit Flag Name Definition 0 Pre-Failure/Advisory bit If bit = 0, an Attribute Value less than or equal to its corresponding Attribute Threshold indicates an Advisory condition where the usage or age of the device has exceeded its intended design life period. If bit = 1, an Attribute Value less than or equal to its corresponding Attribute Threshold indicates a Pre-Failure condition where imminent loss of data is being predicted. 1 On-Line Collective bit 2-5 Reserved bits 6-15 Reserved bits Figure 108 Status Flag Definitions If bit = 0, the Attribute Value is updated only during Off-Line testing. If bit = 1, the Attribute Value is updated during On-Line testing or during both On-Line and Off-Line testing. may either 0 or 1 Always 0 Normalized Values: The device will perform conversion of the raw Attribute Values to transform them into normalized values, which the host can then compare with the Threshold values. A Threshold is the excursion limit for a normalized Attribute Value. In normalizing the raw data, the device will perform any necessary statistical validity checks to ensure that an instantaneous raw value is not improperly reflected in the normalized Attribute Value (i.e., one read error in the first 10 reads being interpreted as exceeding the read error rate threshold when the subsequent 1 billion reads all execute without error). The end points for the normalized values for all Attributes will be 1 (01h) at the low end, and 100 (64h) at the high end for the device. For Performance and Error Rate Attributes, values greater than 100 are also possible, up to a maximum value of 253 (FDh). 14.39.2.3 Off-Line Data Collection Status The value of this byte defines the current status of the off-line activities of the device. Bit 7 indicates Automatic Off-Line Data Collection Status. Bit 7 Automatic Off-Line Data Collection Status 0 Automatic Off-Line Data Collection is disabled. 1 Automatic Off-Line Data Collection is enabled. Bits 0 thru 6 represents a hexadecimal status value reported by the device. Value Definition 0 Off-line data collection never started 2 All segments completed without errors. In this case, current segment pointer equals to total segments required. 4 Off-line data collection suspended by interrupting command 5 Off-line data collecting aborted by interrupting command 6 Off-line data collection aborted with fatal error 14.39.2.4 Self-test execution status Bit Definition 0-3 Percent Self-test remaining An approximation of the percent of the self-test routine remaining until completion in ten percent increments. Valid values are 0 through 9. 4-7 Current Self-test execution status 0 The self-test routine completed without error or has never been run 1 The self-test routine aborted by the host 2 The self-test routine interrupted by the host with a hard or soft reset 3 The device was unable to complete the self-test routine due to a fatal error or unknown test error 4 The self-test routine completed with unknown element failure 5 The self-test routine completed with electrical element failure 6 The self-test routine completed with servo element failure 158/188