Fujitsu MAN3735 Manuale Utente
C141-E124-01EN
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When this bit is "1", it indicated that the IDD shall access the media in performing the
command prior to returning GOOD status. WRITE commands shall not return GOOD status
until the logical blocks have actually been written on the media (i.e., the data is not write
cached).
command prior to returning GOOD status. WRITE commands shall not return GOOD status
until the logical blocks have actually been written on the media (i.e., the data is not write
cached).
3.2.5
WRITE AND VERIFY (2E
)
Bit
Byte
Byte
7
6
5
4
3
2
1
0
0
X‘2E’
1
LUN
u
0
0
0
0
2
Logical Block Address (MSB)
3
Logical Block Address
4
Logical Block Address
5
Logical Block Address (LSB)
6
0
0
0
0
0
0
0
0
7
Transfer Block Count (MSB)
8
Transfer Block Count (LSB)
9
0
0
0
0
0
0
Flag
Link
This command transfers the number of blocks of data specified in the "Transfer block count" field
from the INIT and writes them in continuous logical data blocks with the logical data block on the
disk media specified in the "Logical block address" field in the CDB as the top, then reads those
data and performs a Verify check.
from the INIT and writes them in continuous logical data blocks with the logical data block on the
disk media specified in the "Logical block address" field in the CDB as the top, then reads those
data and performs a Verify check.
The functions of this command related to write operations are the same as those of the WRITE
EXTENDED command (Section 3.2.4), with the exception that the write cache function cannot be
applied. When zero is specified in the "Transfer block count," this command is terminated
normally without performing seek or pre-fetch.
EXTENDED command (Section 3.2.4), with the exception that the write cache function cannot be
applied. When zero is specified in the "Transfer block count," this command is terminated
normally without performing seek or pre-fetch.
The specification in bit 4 of CDB byte 1 is disabled in the IDD and the specified value is
disregarded.
disregarded.
The Verify check executed by this command is the ECC (data portion) normalcy check only. error
recovery processing when the verify check is executed is according tot he mode specified by the
MODE SELECT parameters (Verify error recovery parameter). For example, if data correction
processing is not prohibited, even if a correctable data check is detected during the verify check, it
is regarded as if the verify check succeeded.
recovery processing when the verify check is executed is according tot he mode specified by the
MODE SELECT parameters (Verify error recovery parameter). For example, if data correction
processing is not prohibited, even if a correctable data check is detected during the verify check, it
is regarded as if the verify check succeeded.