Maxtor ATLAS 10K III Manual Page 171

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SCSI Description
5–104 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives
MODE SENSE (6) Command (1Ah) (continued)
Bit
Byte
7 6 5 4 3 2 1 0
0 Mode Data Length
1 Medium Type
2 Device-Specific Parameter
3 Block Descriptor Length
Figure 5–43 Mode Parameter Header (6 Byte) — Data Format
Table 5–46 Mode Parameter Header — Field Descriptions
Data Field Description
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.
Block Descriptor Zero (0) if Block Descriptor (DBD) in MODE SENSE Command Descriptor
Length sector is 0.
If DBD is 1, then the Block Descriptor Length is eight (8).
5.16.1 Read-Only Mode Pages
Table 5-46 lists read-only mode pages. Table 5-25 lists initiator-changeable mode
pages.
Table 5–47 Read-Only Mode Pages
Page Code Page Name Reports the drive's Size (bytes)
03h Format Device Medium format 24
04h Rigid Disk Geometry Total cylinder head and rotational speed 24
38h Vendor Unique Caching Total segments 16
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