Product manual

Byte 1
The
page format (PF) bit is always one. This means that the data
sent by the initiator after the mode select header and block
descriptors complies with the page format.
When the
save pages (SP) bit is 1, the drive saves the savable
pages in nonvolatile memory.
When the
save pages (SP) bit is 0, the drive saves the current
pages in RAM only, which means that the parameters are lost
when the drive is powered down.
Byte 4
The
parameter list length specifies the length, in bytes, of the
header and mode page transferred to the drive. A parameter list
length of 0 means that no data is transferred. To calculate the
parameter list length for any given mode page, add the parameter
list header (4 bytes), the block descriptor (if any, 8 bytes), the 2-byte
mode page header and the length of each mode page. For the
length of the mode pages refer to Appendix C on page 97.
3.4.10.1 Mode Select parameter list
The Mode Select parameter list contains a 4-byte header, followed by a
1-block descriptor (if any), followed by the Mode Select parameter pages.
Each block descriptor specifies the media characteristics for all or part
of a logical unit. The rest of the Mode Select parameters are grouped by
function and organized into mode pages. The mode pages are described
in Appendix C on page 97.
Bytes
Bits
76543210
Parameter list header
0 (default) Reserved (00
H
)
1 (default) Medium type (00
H
)
2 (default) Reserved (00
H
)
3 (default) Block descriptor length (00
H
or 08
H
)
(Optional) Block descriptor data
4 (default) Density code (00
H
)
5–7 Number of blocks
8 (default) Reserved (00
H
)
9–11 Block length
Parameter information
12–
n Mode pages
50 Medalist Pro 2160N/2160WC Product Manual, Rev. A