Hitachi C4K60 Specifications - Page 113

7.5.49.1. SMART Log Directory [Log Sector Address = 00h] The SMART Log Directory is reported size of each log sector address. The following table defines 512 bytes that make up the SMART Log Directory. The value of the SMART Logging Version word is 01h. Byte 0 - 1 2 3 : 510 511 Table 7.29 SMART Log Directory Description SMART Logging Version Number of sectors in the log at log sector address 01h Reserved : Number of sectors in the log at log sector address FFh Reserved 7.5.49.2. Summary SMART Error Log [Log Sector Address = 01h] The last five 28-bit error entries that device reported are gathered in summary SMART error log. Only 28-bit error entries contain in Summary SMART error log. The following table defines the 512 bytes that make up the summary SMART error log. Error log data structure includes UNC errors, IDNF errors for which the address requested was valid, servo errors, write fault errors, etc. They do not include errors attributed to the receipt of faulty commands such as command codes not implemented by the device or requests with invalid parameters or invalid addresses. Table 7.30 Summary SMART Error Log Byte 0 1 2-91 92-181 182-271 272-361 362-451 452-453 454-510 511 Description SMART error log version The value of the SMART error log version is 01h. Error log index The error log index indicates the error log data structure representing the most recent error. Only values 1 through 5 are valid. First error log data structure Second error log data structure Third error log data structure Fourth error log data structure Fifth error log data structure Device error count This contains the total number of errors attributable to the device that have been reported by the device during the life of the device. These errors include UNC errors, IDNF errors for which the address requested was valid, servo errors, write fault errors, etc. This count is not include errors attributed to the receipt of faulty commands such as commands codes not implemented by the device or requests with invalid parameters or invalid addresses. If the maximum value for this field is reached, the count remains at the maximum value when additional errors are encountered and logged. Reserved Data structure checksum This is the two's complement of the sum of the first 511 bytes in the data structure. Each byte is added with unsigned arithmetic, and overflow is ignored. K6610170 Rev.2 Dec 22, 2004 - 113 -