HP Surestore 80fx Optical Drive and Library SCSI-2 Command Reference - Page 49

SCSI-2 Drive Command Set Request Sense Command (03H) Valid A Valid bit of 1 indicates the information field contains valid information. A Valid bit of 0 indicates that the information field does not contain valid data. Error Code An Error Code of 70H indicates that the CHECK CONDITION status returned is the result of an I/O process that returned CHECK CONDITION status. An Error Code of 71H indicates that the CHECK CONDITION status returned is the result of an error occurring during a previous command that returned GOOD status. ILI An Incorrect Length Indicator bit of 1 usually indicates that the requested logical block length did not match the logical block length of the data on the medium. Information If the Valid bit is set to 1, the Information Bytes contain one of the following: (1) The logical block address associated with the sense key. (2) The difference (residue) of the requested length minus the actual length in bytes, as determined by the command, when the ILI bit is set. SKSV A Sense Key Specific Valid bit of 1 indicates that the Sense Key Specific Information is valid. A SKSV bit of 0 indicates that there is no sense key specific information. Sense Key Specific Information If the Sense Key is set to 5-Illegal Request and the SKSV bit is set to 1, the sense key specific field is defined in Table 2-8 on page 2-13. If the Sense Key is set to 2-(Not Ready) and the Additional Sense Code/Additional Sense Code Qualifier is set to 04/04-(Logical Unit Not Ready, Format in Progress) and the SKSV bit is set to 1, the sense key specific field is defined in Table 2-9 on page 2-14. 2-12 Chapter 2