SCSI Description

￿￿￿￿4'#&The￿&'('%6READ DEFECT￿#DATA￿%QOOCPF(12) command￿￿￿￿￿￿￿$directs￿J￿the drive to report defect information about the drive’s medium. Refer to the FORMAT UNIT command for information about defects. The data sent to the host in the command’s data-in buffer transfer consists of a four-byte Defect List header (Table 5-144and Table 5-145),followed by any Defect Descriptors (Table 5-142and Table 5-143).

The READ DEFECT DATA (12) Command Descriptor Block is shown in Table 5- 140; the data fields are described in Table 5-141.

READ DEFECT DATA (12) Command-Data Format

 

 

 

 

 

 

 

 

 

 

 

 

 

$[VG0$KV

￿

￿

￿Operation￿

Code￿(B7h)

￿

 

￿

￿

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

Reserved

 

Plist

 

Glist

 

Defect List Format

 

 

 

 

 

 

 

 

 

 

 

 

2 - 5

 

 

 

Reserved

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

- 9

(MSB)

 

 

Allocation Length

 

 

 

 

 

 

 

 

 

 

 

(LSB)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

 

 

 

Reserved

 

 

 

 

 

11Table5-140

 

 

Control

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5-114 Maxtor Atlas 10K III

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Maxtor 10K III manual 11Table5-140, Read Defect Data 12 Command-Data Format, Plist Glist Defect List Format Reserved