Hitachi HUS154530VLF400 User Manual

                                    

Hitachi Ultrastar 15K450 (FC-AL) Hard Disk Drive Specification

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The following summarizes valid modes of operation. If an illegal mode is set, the MODE SELECT command will complete 
successfully but the action of the drive when an error occurs is undefined.

   0       0        0       0    Retries and Error Correction are attempted. Recovered or corrected data (if any) or both are transferred 

with no Check Condition status at the end of the transfer.

no err    The transfer length is exhausted.

soft err  The transfer length is exhausted. Transferred data includes blocks containing recovered errors.

hard err  Data transfer stops when an unrecoverable error is encountered. The unrecoverable block is not 

transferred to the Initiator. The drive then creates the Check Condition status with the appropri-
ate sense key.

   0        0       0      1    Retries and Error Correction are attempted. Recovered or corrected data (if any) or both are transferred 

with no Check Condition status at the end of the transfer.

no err    The transfer length is exhausted.

soft err  The transfer length is exhausted. Transferred data includes blocks containing recovered errors.

hard err Data transfer stops when an unrecoverable error is encountered.  The unrecoverable block is 

transferred to the Initiator. The drive then creates the Check Condition status with the appropri-
ate sense key.

   0       0      1      0    Retries are attempted but no error correction (ECC) is applied. Recovered data (if any) are transferred with 

no Check Condition status at the end of the transfer.

no err    The transfer length is exhausted.

soft err  The transfer length is exhausted. Transferred data includes blocks containing recovered errors.

hard err Data transfer stops when an unrecoverable error is encountered. The unrecoverable block is not 

transferred to the Initiator. The drive then creates the Check Condition status with the appropri-
ate sense key.

   0        0      1      1     Retries are attempted but no error correction (ECC) is applied. Recovered data (if any) are transferred 

with no Check Condition status at the end of the transfer.

no err    The transfer length is exhausted.

soft err  The transfer length is exhausted. Transferred data includes blocks containing recovered errors.

hard err Data transfer stops when an unrecoverable error is encountered. The unrecoverable block is 

transferred to the Initiator. The drive then creates the Check Condition status with the appropri-
ate sense key.

   0        1      0      0     Illegal Request-DTE must be zero when PER is zero.

   0        1      0      1     Illegal Request-DTE must be zero when PER is zero.

   0        1      1      0     Illegal Request-DTE must be zero when PER is zero.

   0        1      1      1     Illegal Request-DTE must be zero when PER is zero.

   1        0      0      0    The highest level error is reported at the end of transfer. Retries and error correction are attempted. Recov-

ered or corrected data (if any) or both are transferred with Check Condition status and Recovered Error 
sense key set at the end of the transfer.

no err     The transfer length is exhausted.

soft err   The transfer length is exhausted. Transferred data includes blocks containing recovered errors. 

The information byte in the sense data will contain the LBA of the last recovered error.

hard err Data transfer stops when an unrecoverable error is encountered. The unrecoverable block is not 

transferred to the Initiator. The drive then creates the Check Condition status with the appropri-
ate sense key.