IBM Ultrastar 36LZX Specifications page 102

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.
PER DTE DCR TB DESCRIPTION
0 0 0 0 Retries and Error Correction are attempted. Recovered and/or corrected data (if
any) are transferred with no CHECK CONDITION status at the end of the transfer.
no err
soft err The transfer length is exhausted. Transferred data includes blocks
hard err Data transfer stops when an unrecoverable error is encountered. The
0 0 0 1 Retries and Error Correction are attempted. Recovered and/or corrected data (if
any) are transferred with no CHECK CONDITION status at the end of the transfer.
no err
soft err The transfer length is exhausted. Transferred data includes blocks
hard err Data transfer stops when an unrecoverable error is encountered. The
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
soft err The transfer length is exhausted. Transferred data includes blocks
hard err Data transfer stops when an unrecoverable error is encountered. The
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
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 appropriate 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
The transfer length is exhausted.
containing recovered errors.
unrecoverable block is not transferred to the initiator. The drive then
creates the CHECK CONDITION status with the appropriate Sense Key.
The transfer length is exhausted.
containing recovered errors.
unrecoverable block is transferred to the initiator. The drive then creates
the CHECK CONDITION status with the appropriate Sense Key.
The transfer length is exhausted.
containing recovered errors.
unrecoverable block is transferred to the initiator. The drive then creates
the CHECK CONDITION status with the appropriate Sense Key.
The transfer length is exhausted.
Ultrastar 36LZX hard disk drive specifications
102