SCSI Description

￿￿￿￿94+6'The ￿WRITE5#/'￿SAME%QOOcommandCPF￿￿￿￿requestsJ￿that the drive write the single sector of data transferred by the initiator to the medium multiple times. The data format and field descriptions are shown in Table 5-222and Table 5-223respectively.

WRITE SAME Command Descriptor Block-Data Format

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

Operation Code (41h)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

Reserved

 

PBdata

LBdta

RelAdr

 

 

 

 

 

 

 

 

 

 

 

2 -

 

 

 

 

Logical Block Address

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Reserved

 

 

 

 

 

 

 

 

 

 

 

 

 

7 - 8

 

 

 

 

 

Number of Blocks

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Control

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

$[VG$KV

 

 

WRITE￿SAME Command￿

-Field￿Descriptions￿

￿

￿

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PBdata(KGNF

 

Physical Block Data. – Not supported.&GUETKRVKQP

 

 

 

 

 

 

 

 

 

 

 

Logical Block Data. – A value of 1 requests that the drive replace the first four

 

LBdata

 

bytes of the data to be written to the current6JKU￿HKGNFlogical￿OWUVsector￿DG￿\GTQwith￿the logical sector

 

 

 

 

address of the sector currently being written.

 

 

 

 

 

 

 

 

 

 

 

RelAdr

 

Relative Address. – Not supported.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Logical

 

The-222address of the first logical sector where the Write operation will occur.

BlockTableAd-

 

dress

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Numberof

 

This field contains the number of contiguous logical blocks that are to be written.

 

A value of 0 requests that all the remaining logical blocks on the medium are to

 

 

 

 

 

Blocks

 

Tablebe written.5-223

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5-176 Maxtor Atlas 10K III

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Maxtor 10K III manual Write Same Command Descriptor Block-Data Format, LBdata