The Log Page Descriptor 6 - Freecom TAPEWARE AIT-450I Manual

6.Command Specification
6.6.1 The Log Page Descriptor
The format of the log pages consists of ZERO or more variable-length parameter structures. Each page begins with
a 4-byte page header followed by ZERO or more variable-length parameter structures defined for that page. The Log
Select command supports the ability to send ZERO or more log pages. The LOG SENSE command returns a single
log page as specified in the Page Code field of the CDB.
Bit 7
Byte
0 Reserved
1
2 (MSB)
3
4 - x+3
n-y n
Page code: Identifies which page of data is being transferred. If the Page Code field value is reserved or not
implemented by the target, the target shall terminate the command with a CHECK CONDITION status. The sense
key shall be set to ILLEGAL REQUEST, and the additional sense code shall be set to INVALID FIELD IN
PARAMETER LIST.
Page Length: The Page Length field indicates the total number of bytes that follow this byte. The value returned for
this field depends on the value you specified for the Page Code and the Parameter Pointer in the CDB. This value is
independent of what you specified for the Allocation Length. A Page Length value that results in the truncation of any
parameter shall cause the target to terminate the command with CHECK CONDITION status. The sense key shall
be set to ILLEGAL REQUEST and the additional sense code shall be set to INVALID FIELD IN PARAMETER LIST.
6-14
Table 6-8: Log Page Format
6 5 4
Page Length (n-3)
Log Parameters(s)
The First Log Parameter (Length x)
The Last Log Parameter (Length y)
3 2
Page Code
Reserve
.
.
.
SONY AIT-1 Turbo drive SDX-450V series Ver.1.0
LOG SENSE
1 0
(LSB)