User's Guide

Chapter 2 Media Changer Commands
Request Sense Command (03h)
Quantum SuperLoader 3 Software Interface Guide 125
Table 58 Supported Sense
Keys for Request Sense
SKSV Sense-Key Specific Valid. When = 1, indicates that the Sense Key specific
field is as defined by the International Standard.
C/D
Command / Data. When set to 1, this field indicates that the illegal
parameter is contained in the
Command Descriptor Block. A C/D set to 0
indicates that the illegal parameter is in the
Parameter List from the
initiator.
BPV
Bit Pointer Valid. When set to 1, this field indicates that the Bit Pointer
field is valid and designates 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.
Field Pointer This field indicates which byte of the
CDB or Parameter List is in error.
For a multi-byte field, the most significant byte is indicated.
Sense Key Description
0h
NO SENSE.
1h
RECOVERED ERROR. This can be caused by rounding of Mode Parameters on
a
MODE SELECT, or may report that recovery algorithms were required to
complete a move operation. The device may still be able to continue to
function without any unrecovered errors for a long period of time, however.
2h
NOT READY. The media changer is not ready for move operation commands.
Initialization or calibration may be in-progress or may have failed.
4h
HARDWARE ERROR. The Additional Sense Code / Additional Sense Code
Qualifier
fields may present more specific information.
5h
ILLEGAL REQUEST. The CDB or supplied parameter data had an
unsupported or illegal operation specified. Check bytes 15, 16, and 17.
6h
UNIT ATTENTION. Unit Attentions are created after a device reset, if the
medium asynchronously becomes ready to the initiator, if another initiator
changes
Mode Parameters, and/or if the firmware is updated.
Field Description