Read-Only Mode; Format Device Page (03H); Table 5-95 Read-Only Mode; Table 5-96 Format Device Page - Maxtor ATLAS 10K IV User Manual

Mode Parameter Header and Block Descriptor-Field Descriptions
Table 5-94
Data Field
Mode Data Length Length of the returned data
Medium Type Always zero (0)
Device-Specific Bit 7 - This bit is set if the drive is write protected
Parameter Bit 4 - This bit is always set to indicate that the drive supports cache memory.
Zero (0) if Block Descriptor (DBD) in MODE SENSE Command Descriptor Length sector is 0.
Block Descriptor
If DBD is 1, then the Block Descriptor Length is eight (8).
Number of Blocks The value in this field specifies the number of logical blocks on the unit that are affected by the
current MODE SELECT command. When this field = 0, the MODE SELECT parameters are put
into effect for all logical blocks on the unit. The maximum value allowed is the total number of
initiator-addressable logical blocks for the value specified in the Block Length field. A value that
is less than the maximum value will decrease the number of initiator-accessible logical blocks to
the amount specified.
Block Length The value in this field specifies the length, in bytes, of each block.
5.16.1 Read-Only Mode Pages
Table 5-95 lists read-only mode pages. Table 5-51 lists initiator-changeable mode pages.
Page Code (Sub Page)
03h
04h
5.16.2

Format Device Page (03h)

The Format Drive Page (Table 5-96) describes the drive's medium format.
The data fields are described in Table 5-97. Note that the page is savable but no
parameters are changeable.
Bit
Byte
0
1
2 - 3
4 - 5
6 - 7
8 - 9
10 - 11
12 - 13
14 - 15
16 - 17
18 - 19
20 SSEC
21 - 23
Read-Only Mode Pages
Table 5-95
Page Name
Format Device
Rigid Disk Geometry
Format Device Page-(Page 3)
Table 5-96
7 6 5
PS Rsvd
HSEC RMB
Description
Reports the drive's
Medium format
Total cylinder head and
rotational speed
4 3
Page Code (03h)
Page Length (16h)
Tracks Per Zone
Alternate Sectors/Zone
Alternate Tracks/Zone
Alternate Tracks/Logical Unit
Sectors/Track
Data Bytes/Physical Sector
Interleave
Track Skew Factor
Cylinder Skew Factor
SURF
Reserved
Maxtor Atlas 10K IV
SCSI Description
Size (bytes)
24
24
2 1 0
Reserved
5-65