SCSI Description

￿￿￿￿4'#&￿￿￿￿￿%QOOCPF￿￿￿￿J￿The READ (6) command requests that data be transferred from the drive to the initiator. The amount of data transferred is specified by the transfer length field. The starting point is specified by the logical sector address. The data format and field descriptions are shown in Table 5-125and Table 5-126respectively.

 

 

 

 

 

READ (6) Command-Data Format

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

Operation Code (08h)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

Reserved

 

 

 

Logical Block Address

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2 - 3

 

 

 

 

Logical Block Address (continued)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Transfer Length

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

 

 

 

 

 

Control

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

$[VG

$KV

￿

￿READ￿(6) Command￿-Field Descriptions￿ ￿

￿

￿

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Logical Block(KGNF￿Address

 

 

Specifies the logical&GUETKRVKQPblock address where the

 

 

 

 

 

 

 

 

read operation will begin.

 

 

 

 

 

 

 

 

 

 

 

Specifies the number of contiguous logical

 

 

 

 

 

 

 

 

blocks of data to transfer. A transfer length of

 

 

 

Transfer Length

 

 

0 indicates that 256 logical blocks will be trans-

 

 

 

TableTable5-5126-125

 

 

ferred. Any other value indicates the number of

 

 

 

 

 

logical blocks that will be transferred.

 

 

 

 

 

 

 

 

 

 

 

 

5-106 Maxtor Atlas 10K III

Page 170
Image 170
Maxtor 10K III manual Read 6 Command-Data Format, Ferred. Any other value indicates the number