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SCSI Description
5–26
Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives
FORMAT UNIT Command (04h) (continued)
Bit
Byte
7
6
5
4
3
2
1
0
0
Operation Code (04h)
1
Reserved
Fmt
Data
Cmp
List
Defect List Format
2
Vendor-Specific
3 - 4
Interleave
5
Control
Figure 5–4 FORMAT UNIT Command Descriptor Block — Data Format
Table 5–7 FORMAT UNIT Command — Field Descriptions
Field
Description
FmtData
Format Data. When the Format Data value is 1, it indicates that a data-out
buffer transfer occurs as part of the command execution. The FORMAT UNIT
Parameter List (consisting of a Defect List Header and, optionally, a number
of Block Format Defect Descriptors) is passed to the device during this phase.
When the Format Data value is 0, the data-out buffer transfer does not occur.
CmpLst
Complete List. When the Complete List value is 1, the drive deletes its current
Grown Defect List and starts a new one, containing the Logical Block
Numbers listed in the defect list supplied by the initiator with this command.
Defective Logical Block Numbers identified during this format operation are
added to the list, creating a new Grown Defect List.
When the Complete List value is 0, the drive adds initiator-supplied and
newly found defective Logical Block Numbers to the existing Grown
Defective List.
Defect List Format
The Defect List Format value specifies the defect descriptor passed by the
initiator to the drive when the Format Data value is 1. Acceptable values are:
000b (Block [
or Sector
] Format)
100b (Index Format)
101b (Physical Sector Format).
Vendor-Specific
Not supported.
Must be 0.
Interleave
Not supported. Ignored by the drive.
Summary of Contents for Quantum Atlas 10K II 9.2/18.4/36.7/73.4 GB
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Page 55: ...Installation 3 28 Quantum Atlas 10K II Ultra 160 m SCSI Hard Disk Drives...
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Page 315: ...Feature Descriptions 6 14 Quantum Atlas 10K II Ultra 160 m SCSI Hard Disk Drives...
Page 321: ...Appendix A Quick Reference A 6 Quantum Atlas 10K II Ultra 160 m SCSI Hard Disk Drives...
Page 363: ...Appendix B SCSI Bus Signal Timing B 42 Quantum Atlas 10K II Ultra 160 m SCSI Hard Disk Drives...
Page 369: ...Index I 4 Quantum Atlas 10K II Ultra 160 m SCSI Hard Disk Drives...
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