Drive Parameter (Page Code = 4) - Fujitsu MAX3073NC - SCSI,80, Dell DC961,Hard Drive Scsi Logical Interface Specifications

Parameter Data Formats
4.1.4

Drive parameter (page code = 4)

The page descriptor format of this MODE SELECT parameter is shown in Figure 4.5.
Bit 7
Byte
0 0
1
2-4
Default
Variable
5
Default
Variable
6-8
Default
Variable
9-11
Default
Variable
12-13
Default
Variable
14-16
Default
Variable
17 0
Default 0
Variable 0
18
Default
Variable
19
20-21
Default
Variable
22-23
Figure 4.5
Note:
When transfer of this page is requested by the MODE SENSE or MODE SENSE EXTENDED
command, the IDD reports X '16' as the page length. However, in the MODE SELECT and MODE
SELECT EXTENDED commands, if either X '16,' X '12' or X '0A' is specified, it is treated as if the
IDD has specified the correct page length. The X '12' and X '0A' page lengths have been included in
consideration of compatibility with previous models, but it is recommended that the INIT use the X
'16' page length to support expanded specifications in the future.
4-18
6 5 4
0 0 0
X'16', X'12' or X'0A' (Page Length)
Cylinder Count
X'xxxxxx'
X'000000'
Number of Heads
X'xx'
X'00'
"Write Precompensation" Starting Cylinder
X'000000'
X'000000'
"Reduced Write Current" Starting Cylinder
X'000000'
X'000000'
Drive Step Rate
X'0000'
X'0000'
Landing Zone Cylinder
X'000000'
X'000000'
0 0 0
0 0 0
0 0 0
Rotational Synchronization Offset
X'00'
X'00'
X'00' (Reserved)
Rotational Speed
X'2729' or X'3A98'
X'0000'
X'0000' (Reserved)
MODE SELECT parameters: drive parameters
3 2 1
0 1 0
0 0 RPL
0 0 0
0 0 0
0
0
(See the
"Note")
0
0
(10,025 rpm or
15,000 rpm)
C141-C010