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SCSI Description
Maxtor Atlas 10K III 5-75
The MODE SENSE (6) command allows the initiator to read the drive's sector
descriptor and mode pages. The MODE SENSE Command Descriptor Sector is
shown in Table 5-89 and the data fields are described in Table 5-90. The Mode
Parameter Header is shown in Table 5-91 and the data fields are described in
Table 5-92.
MODE SENSE (6) Command Descriptor Block-Data Format
MODE SENSE Command-Field Descriptions
Mode Parameter Header (6 Byte)-Data Format
0 Operation Code (1Ah)
1 Reserved DBD Reserved
2 PC Page Code
3 Sub Page Code
4 Allocation Length
5 Control
DBD
Disable Block Descriptor. When the value is 0, the drive returns its Block
Descriptor followed by the requested page(s). When the value is 1, the drive
returns only the requested pages.
PC
Page Control. Determines which type of page values are returned. These
values are:
00b Current
01b Changeable
10b Default
11b Saved
Page Code
The Page Code field determines the pages to be returned to the initiator in
the command's data-in buffer transfer. Refer to Table 5-53 and Table 5-93
for a complete list of the Mode Pages (changeable and read-only). A Page
Code of 3Fh causes all supported pages to be returned.
0 Mode Data Length
1 Medium Type
2 Device-Specific Parameter
3 Block Descriptor Length