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SCSI Description
Table 5-92
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.
5-66
Maxtor Atlas 15K II
Mode Parameter Header and Block Descriptor-Field Descriptions
Description
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