Write
Same
Write Same
Requests
the
Target to write
the
single block
of
data
transferred by
the
Initiator
to
the
media
the
number of times specified in
the
Number of Blocks field.
Write
Same
Command
Descriptor
Block
(COB)
Bit
Byte
7
I
6
I
5
I
4
I
3
T
2
I
1
,
0
00
Opcode
= 41H
01
Logical
Unit
Number
I
Reserved
I
PBdata
T
LBdata
.,
ReIAdr=O
02-05
(MSB=02)
Logical Block Address
(LSB=05)
06
Reserved
07-08
(MSB=07)
Number
of
Blocks
(LSB=08)
09
Control
Byte
LBdata (Logical Block Data).
If
LBdata
equals one (1), the Target will replace
the
first four
bytes
of
the
data
to
be written
to
the
current logical block with
the
logical block address of
the
block currently being written.
PBdata
(Physical Block Data).
If
PBdata
equals one (1),
the
Target will replace
the
first eight
bytes of
the
data
to
be written
to
the
current physical sector with
the
physical address
of
the
sector currently being written using
the
physical sector format.
Note:
If
both
LBdata and
PBdata
equal one (1), the target will terminate
the
command with
a
Status
of
CHECK CONDITION, a Sense Key of ILLEGAL REQUEST,
and
an Additional
Sens Code ofILLEGAL FIELD IN CDB.
Logical Block Address. Specifies
the
address
of
the
first logical block
to
be written.
Number
of
Blocks. Specifies
the
number of contiguous logical blocks
to
be written.
If
set to
zero
(0),
the
target will write
the
supplied
data
to
all remaining logical blocks on
the
media.
DRAFT
SCSI
Command
Descriptions
A-S3
1/18/93 09:58
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