Table 69
+========-====================================================================+
| Sense | Description |
| key | |
|--------+--------------------------------------------------------------------|
| 0h | NO SENSE. Indicates that there is no specific sense key |
| | information to be reported for the designated logical unit. This |
| | would be the case for a successful command or a command that |
| | received CHECK CONDITION or COMMAND TERMINATED status because one |
| | of the filemark, EOM, or ILI bits is set to one. |
|--------+--------------------------------------------------------------------|
| 1h | RECOVERED ERROR. Indicates that the last command completed |
| | successfully with some recovery action performed by the target. |
| | Details may be determinable by examining the additional sense |
| | bytes and the information field. When multiple recovered errors |
| | occur during one command, the choice of which error to report |
| | (first, last, most severe, etc.) is device specific. |
|--------+--------------------------------------------------------------------|
| 2h | NOT READY. Indicates that the logical unit addressed cannot be |
| | accessed. Operator intervention may be required to correct this |
| | condition. |
|--------+--------------------------------------------------------------------|
| 3h | MEDIUM ERROR. Indicates that the command terminated with a non- |
| | recovered error condition that was probably caused by a flaw in |
| | the medium or an error in the recorded data. This sense key may |
| | also be returned if the target is unable to distinguish between a |
| | flaw in the medium and a specific hardware failure (sense key 4h).|
|--------+--------------------------------------------------------------------|
| 4h | HARDWARE ERROR. Indicates that the target detected a non- |
| | recoverable hardware failure (for example, controller failure, |
| | device failure, parity error, etc.) while performing the command |
| | or during a self test. |
|--------+--------------------------------------------------------------------|
| 5h | ILLEGAL REQUEST. Indicates that there was an illegal parameter in|
| | the command descriptor block or in the additional parameters |
| | supplied as data for some commands (FORMAT UNIT, SEARCH DATA, |
| | etc.). If the target detects an invalid parameter in the command |
| | descriptor block, then it shall terminate the command without |
| | altering the medium. If the target detects an invalid parameter |
| | in the additional parameters supplied as data, then the target may|
| | have already altered the medium. This sense key may also indicate|
| | that an invalid IDENTIFY message was received (6.6.7). |
|--------+--------------------------------------------------------------------|
| 6h | UNIT ATTENTION. Indicates that the removable medium may have been|
| | changed or the target has been reset. See 7.9 for more detailed |
| | information about the unit attention condition. |
|--------+--------------------------------------------------------------------|
| 7h | DATA PROTECT. Indicates that a command that reads or writes the |
| | medium was attempted on a block that is protected from this |
| | operation. The read or write operation is not performed. |
+=============================================================================+