Maxtor 10K V Benutzerhandbuch

Seite von 253
5-154
Maxtor Atlas 10K V
Table 5-216   
WRITE SAME Command Descriptor Block-Data Format
Table 5-217   
WRITE SAME Field Description
5.50
WRITE SKIP MASK Command (EAh)
The WRTIE SKIP MASK command allows the initiator to condition the function of 
the WRITE commands to allow only selected data to be transferred over the SCSI 
interface. A WRITE SKIP MASK command precedes a WRITE (10) command; the 
WRITE (10) command must be linked to the WRITE SKIP MASK command or the 
skip mask is lost and a CHECK CONDITION status is returned.
Table 5-218   
WRITE SKIP MASK Command (EAh)
Bit
Byte
7
6
5
4
3
2
1
0
0
Operation Code (41h)
1
Reserved
PBdata
LBdta
RelAdr
2-5
Logical Block Address
6
Reserved
7-8
Number of Blocks
9
Control
Field
Description
PBdata
Physical Block Data - Not supported. This feild must be 
zero.
LBdata
Logical Block Data - A value of 1 requests that the drive 
replace the first four bytes of the data to be written to the 
current logical sector with the logical sector address of the 
sector currently being written.
RelAdr
Relative Address. - Not supported. This feild must be 
zero
Logical Block Address
The address of the first logical sector where the Write op-
eration will occur.
Number of Blocks
This feild 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 be 
written.
Bit
Byte
7
6
5
4
3
2
1
0
0
Operation Code (EAh)
1
         Reserved                                                       
2 - 5
   (MSB)                                         
Logical Block Address                                                    
(LSB)
6
Skip Mask Length
7 - 8
(MSB)                                         
Transfer Length                                                    
(LSB)
9
VU
Reserved
Flag
Link