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Logical Unit
This field is ignored.
Number
Allocation
0
No data is transferred to the host.
Length
>0 The maximum amount of sense data in bytes that should be transferred to the host. The
drive returns up to Allocation Length bytes of data; any extra sense data is lost.
Request Sense Data
0
1
2
3
6
7
8
11
12
13
14
15
16
17
18–20
21
CDB Fields:
The following diagram shows the format of the data returned for the
command following the reporting of
SENSE
7
6
5
Valid
Mark
EOM
ILI
(MSB)
Additional Sense Length (0Eh)
(MSB)
Command Specific Information Bytes
Additional Sense Code Qualifier
SKSV
C/D
Reserved (0)
(MSB)
Reserved (0)
CHECK CONDITION
4
3
Error Code
Segment Number (0)
Rsvd(0)
Information Bytes
Additional Sense Code
Field Replaceable Unit Code
BPV
Field Pointer/Drive Error Code
Reserved (0)
CLN
REQUEST
by the drive:
2
1
0
Sense Key
(LSB)
(LSB)
Bit Pointer
(LSB)
Reserved (0)
Commands 129
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