Toshiba MK4006GAH Manuale Utente

 

 

Toshiba Corporation Digital Media Network Company 

 

Page 125 of 153 

    © 2003, Copyright TOSHIBA Corporation All Rights Reserved

 

State shall contain a value indicating the state of the device when the command was written to the Command 
register or the reset occurred as described in the following table. 
 

State field values 

Value State 
x0h Unknown 
x1h Sleep 
x2h Standby 
x3h 

Active/Idle with BSY cleared to zero 

x4h 

Executing SMART off-line or self-test 

x5h-xFh Reserved 
The value of x is vendor specific and may be different for each state. 

 
Sleep indicates the reset for which the error is being reported was received when the device was in the Sleep 
mode. 
 
Standby indicates the command or reset for which the error is being reported was received when the device was 
in the Standby mode. 
 
Active/Idle with BSY cleared to zero indicates the command or reset for which the error is being reported was 
received when the device was in the Active or Idle mode and BSY was cleared to zero. 
 
Executing SMART off-line or self-test indicates the command or reset for which the error is being reported was 
received when the device was in the process of executing a SMART off-line or self-test. 
 
Life timestamp shall contain the power-on lifetime of the device in hours when command completion occurred. 
 

 
The device error count field shall contain the total number of errors attributable to the device that have been 
reported by the device during the life of the device. These errors shall include UNC errors, IDNF errors for which 
the address requested was valid, servo errors, write fault errors, etc. This count shall 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 
shall remain at the maximum value when additional errors are encountered and logged. 
 

 
The data structure checksum is the two’s complement of the sum of the first 511 bytes in the data structure. 
Each byte shall be added with unsigned arithmetic, and overflow shall be ignored. The sum of all 512 bytes will 
be zero when the checksum is correct. The checksum is placed in byte 511. 

 
The following table defines the format of each of the sectors that comprise the Extended SMART Self-test log.   
The size of the self-test log is 1 sectors.   
 
The Extended SMART self-test log sector shall support 48-bit and 28-bit addressing.    All 28-bit entries 
contained in the SMART self-test log, defined under section 11.8.42.6.4 shall also be included in the Extended 
SMART self-test log with all 48-bit entries.