Request Sense - 03h

Op Code (03h)

Reserved

Reserved

Reserved

Allocation Length

Response Code (70h)

Reserved

Sense Key

Information

Additional Sense Length (0Ah or 10h)

Command Specific Information (0000 0000h)

Additional Sense Code (ASC)

Additional Sense Code Qualifier (ASCQ)

Field Replaceable Unit Code

Bit Pointer

Field Pointer

Reserved

The Valid field is set to 0 if the Information field is not valid. It is set to 1 if the Information field contains valid additional data as described below.

The Response Code field is set to 70h to indicate that the library returns current errors.

Table 3 describes the Sense Key values.

This field returns additional information for certain ASC/ASCQs where a specific device must be identified and the sense data is associated with a Unit Attention condition instead of a specific command. These are described as follows:

• If the ASC/ASCQ is related to Import/Export stations, then byte 6 indicates which I/E station it pertains to (1 to 4).
• If the ASC/ASCQ is related to a specific Data Transfer Element, then bytes 5 and 6 contain the element address of that element.
• If the ASC/ASCQ is related to Towers, then byte 6 indicates which Tower it pertains to (1 to n).

This field specifies the number of additional sense bytes that follow this field. If the media changer device control path is hosted by a DA blade controller device, 0Ah (10 bytes) of additional sense data are returned. If the media changer device control path is hosted by a tape drive, 10h (16 bytes) of additional sense data are returned.

This field is not supported and returns 0000 0000h.

This field denotes a specific error condition. Additional information is provided in the Additional Sense Code Qualifier (ASCQ) field. Table 4 lists all the codes.

This field provides additional information for the ASC. Refer to Table 4 for more information.

This field is not used and returns zero.

This field returns a value of 1 if bytes 15-17 contain valid data for a Sense Key of Illegal Request (05h). Otherwise this field returns 0.

A value of 1 indicates that the illegal parameter was detected in the CDB. It returns 0 if the illegal parameter was detected in the data parameters. This field only applies if SKSV is 1.

A value of 0 indicates that the Bit Pointer field is not valid. A value of 1 indicates that the Bit Pointer field is valid. This field only applies if SKSV is 1.

This field indicates which bit of the byte designated by the field pointer is in error. For a multi-bit field, it points to the most significant bit of the field. This field only applies if SKSV is 1.

No Sense. No specific sense key information to report.

Not Ready. The library is not ready to perform motion commands.

Hardware Error. A hardware error was detected and operator intervention may be required.

Illegal Request. The CDB or supplied parameter data contains an unsupported or illegal parameter.

Unit Attention. The library operating status changed. Additional processing may be required.

The library is not ready due to an unknown cause

LU Communication - SCSI Command Communication Failure

The library is becoming ready

The library is not ready and a manual intervention is required

Logical unit not ready, offline

The library is not ready due to aisle power being disabled

The library is not ready because it is offline

LU Communication Failure

LU Communication – Timeout

LU Communication – SCSI Failure

LU Communication – SCSI Command Execution or Queuing Failure

LU Communication – SCSI Command Failed

LU Communication – SCSI Time-Out

LU Communication – SCSI Autosense Failed

LU Communication – SCSI Aborted

LU Communication – SCSI Abort Failed

LU Communication – SCSI Status Failed

LU Communication – FC Data Underrun

LU Communication – FC DMA Error

LU Communication – FC Reset

LU Communication – FC Data Overrun

LU Communication – FC Queue Full

LU Communication – Port Unavailable

LU Communication - Port Logged Out

LU Communication - Port Configuration Changed

A mechanical positioning error occurred

Parameter list length error

Synchronous data transfer error

Illegal opcode in CDB

Invalid element address in CDB

Invalid field in CDB

Illegal LUN

Invalid field in Parameter List

Invalid release of persistent reservation

Not Ready to Ready change, element status may have changed

Insert/Eject station opened and closed

Power-on or reset occurred

Power on occurred

Device reset occurred

Internal reset occurred

Nexxus loss occurred

Mode parameters have been changed

Reservations preempted

Reservations released

Registrations preempted

Command sequence error

Incompatible medium installed

Saving parameters not supported

The destination element is full

The source element is empty

Media magazine not installed

Data transfer device removed

Media type does not match destination media type

Logical Unit has not self-configured yet

New firmware loaded

Inquiry data changed

Echo buffer overwritten

Component failure

Message error

Firmware detected an internal logic failure

Select or reselect failure

SCSI parity error

Initiator detected error message received

Invalid message error

Command phase error

Data phase error

Overlapped commands attempted

A drive did not load or unload a tape

A drive did not unload a cartridge

Medium removal prevented

Duplicate Volume Identifier

Insert/Eject area element open for operator access

Cannot lock the I/E station

Cannot unlock the I/E station

Label too short or too long

Barcode label questionable

Cell status and barcode label questionable

Data transfer element not installed

Data transfer element offline or varied off and not accessible for library operations