Specifications

ATAPI For Streaming Tape QIC-157 Rev B
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A Response Data Format value of 02h indicates that the data shall be in the format specified in
this Specification. Other Response Data Format values are reserved.
The Additional Length field shall specify the length in bytes of the parameters. If the allocation
length of the Command Packet is too small to transfer all of the parameters, the additional length
shall not be adjusted to reflect the truncation.
ASCII data fields shall contain only graphic codes (i.e. code values 20h through 7Eh). Left-aligned
fields shall place any unused bytes at the end of the field (highest offset) and the unused bytes shall
be filled with space characters (20h). Right-aligned fields shall place any unused bytes at the start of
the field (lowest offset) and the unused bytes shall be filled with space characters (20h).
The Vendor Identification field contains 8 bytes of ASCII data identifying the vendor of the
product
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. The data shall be left aligned within this field.
The Product Identification field contains 16 bytes of ASCII data as defined by the vendor. The
data shall be left-aligned within this field.
The Product Revision Level field contains 4 bytes of ASCII data as defined by the vendor. The
data shall be left-aligned within this field.
Table 6-10 Recommended Sense Key, ASC and ASCQ for INQUIRY Errors
Sense Key ASC ASCQ Description of Error
05 20 00 INVALID COMMAND OPERATION CODE
05 24 00 INVALID FIELD IN COMMAND PACKET
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. It is intended that this field provide a unique vendor identification of the manufacturer of the ATAPI
Streaming Tape Drive. In the absence of a formal registration procedure, QIC maintains a list of vendor
identification codes in use. Vendors are requested to voluntarily submit their identification codes to QIC to
prevent duplication of codes.