User Manual

SCSI Commands Reference Manual, Rev. J 431
www.seagate.com Parameters for direct access devices
0 1 1 0 The device server shall perform the full number of retries as specified in the READ RETRY COUNT field for read
operations, the WRITE RETRY COUNT field for write operations, and the VERIFY RETRY COUNT field (see 5.3.35) for
verify operations and shall perform error correction in an attempt to recover the data.
The device server shall terminate a command performing a read or write operation with CHECK CONDITION status
before the transfer count is exhausted if any error, either recoverable or unrecoverable, is detected. The
INFORMATION field in the sense data shall contain the LBA of the block in error.
If an unrecoverable data error occurs during a read operation, the transfer block (TB) bit determines whether the
data for the logical block with the unrecovered read error is transferred to the data-in buffer.
0 1 1 1 The device server shall perform the full number of retries as specified in the READ RETRY COUNT field for read
operations, the WRITE RETRY COUNT field for write operations, and the VERIFY RETRY COUNT field (see 5.3.35) for
verify operations but shall not perform error correction in an attempt to recover the data.
The device server shall terminate a command performing a read or write operation with CHECK CONDITION status
before the transfer count is exhausted if any error, either recoverable or unrecoverable, is detected. The
INFORMATION field in the sense data shall contain the LBA of the block in error.
If an unrecoverable data error occurs during a read operation, the transfer block (TB) bit determines whether the
data for the logical block with the unrecovered read error is transferred to the data-in buffer.
1 0 0 0 The device server shall perform the fewest possible number of retries and perform error correction in an attempt
to recover the data.
The device server shall not report recovered errors. The device server shall terminate a command performing a
read or write operation with CHECK CONDITION status before the transfer count is exhausted only if an
unrecoverable error is detected.
If an unrecoverable data error occurs during a read operation, the transfer block (TB) bit determines whether the
data for the logical block with the unrecovered read error is transferred to the data-in buffer.
100 1
Invalid mode. The DCR bit shall be set to zero if the EER bit is set to one.
[a]
Table 405 Combined error recovery bit descriptions (Sheet 2 of 3)
EER PER DTE DCR Description