Table 5-170Supported Sense Keys

 

 

 

Sense Key

Code

Description

 

 

 

 

 

There is no specific sense key information to be reported for the designated logical unit.

NO SENSE

0h

This is the case for a successful command or a command that received CHECK CON-

DITION or COMMAND TERMINATED status because one of the following bits is set

 

 

 

 

to 1: File Mark, EOM, or ILI.

 

 

 

RECOV-

 

The last command completed successfully with some recovery action performed by the

 

drive. Details may be contained in the additional sense bytes and the Information field.

ERED ER-

1h

When multiple recovered errors occur during one command, the choice of which error

ROR

 

 

to report (first, last, most severe, etc.) is device specific.

 

 

 

 

 

NOT READY

2h

The logical unit cannot be accessed. Operator intervention may be required to correct

this condition.

 

 

MEDIUM

 

The command terminated with a non-recovered error condition that was probably

3h

caused by a flaw in the medium or an error in the recorded data. This sense key can also

ERROR

be returned if the drive is unable to distinguish between a flaw in the medium and a spe-

 

 

 

cific hardware failure (Sense Key

 

 

 

HARDWARE

4h

The drive detected a non-recoverable hardware failure while performing the command

ERROR

or during a self-test. The error type could be controller failure, device failure, etc.

 

 

 

The drive detected an illegal parameter in the Command Descriptor Block or in the ad-

ILLEGAL

 

ditional parameters supplied as data for some commands. If the drive detects an invalid

5h

parameter in the Command Descriptor Block, it terminates the program without altering

REQUEST

the medium. If the drive detects an invalid parameter in the additional parameters sup-

 

 

 

plied as data, the drive may have already altered the medium. This sense key may also

 

 

indicate that an invalid IDENTITY message was received.

 

 

The drive generates this sense key whenever the drive is reset by a TARGET RESET

 

 

message, a hard reset condition, or by a power-on reset. Other conditions that generate

 

 

a UNIT ATTENTION include:

 

 

The mode parameters in effect for this initiator have been changed by another initia-

 

 

tor.

UNIT

6h

• The microcode has been changed.

 

ATTENTION

• Tagged commands queued for this initiator were cleared by another initiator.

 

 

 

 

 

• INQUIRY data has been changed.

 

 

• The mode parameters in effect for the initiator have been restored from non-volatile

 

 

memory.

 

 

• Other events that require the attention of the initiator.

 

 

 

DATA

7h

A Read or Write command was attempted on a sector that is protected for this operation.

PROTECT

The requested operation was not performed.

 

VENDOR

9h

This sense key is used to report specific Maxtor conditions.

SPECIFIC

 

 

ABORTED

Bh

The drive aborted the command. The initiator may be able to reissue the command suc-

COMMAND

cessfully.

 

MISCOM-

Eh

The source data did not match the data read from the medium (i.e., a mismatch).

PARE

 

 

Maxtor Atlas 10K V

5-117