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SCSI Commands: 21BLOG SENSE
Each event is 82 bytes in length, including the four-byte parameter header, as
shown below.
Bits
Byte
7
0
(MSB)
1
2
(0)
DU
3
4
(MSB)
7
8
(MSB)
11
12
13
14
15
16
37
38
(MSB)
39
40
(MSB)
43
44
(MSB)
47
48
(MSB)
51
52
(MSB)
55
56
63
64
71
72
81
Multi-byte numeric fields are in big-endian format. Each field records the specified
data at the time the event occurred. If the repeat count is one or more, then the
parameter indicates that the specified event occurred multiple times in succession
without any other event type in between, and the fields contain the values
corresponding to the most recent occurrence of the event.
Field
Bytes
Power On Hours
4
Tape Motion
4
Hours
Sense Key
1
ASC
1
ASCQ
1
6
5
4
PARAMETER CODE
(1)
(0)
(0)
DS
TSD
ETC
PARAMETER LENGTH
POWER ON HOURS
TAPE MOTION HOURS
Reserved
SENSE KEY
ASC
ASCQ
Reserved
MESSAGE CODE
REPEAT COUNT
THREAD COUNT
TOTAL DATA SETS
TIMESTAMP
FIRMWARE VERSION
CARTRIDGE MANUFACTURER
CARTRIDGE SERIAL NUMBER
Description
The number of hours that the drive had been powered on since
manufacture when the event occurred.
The number of hours of hours of tape motion across the head since
manufacture when the event occurred.
The Sense Key value reported for the event.
The Additional Sense Code reported for the event.
The Additional Sense Code Qualifier reported for the event.
3
2
1
(LSB)
LBIN
(00b)
TMC
LP
(1)
(4Eh)
(LSB)
(LSB)
(LSB)
(LSB)
(LSB)
(LSB)
(LSB)
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