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SCSI Commands: 21BLOG SENSE
indicating multiple error events. Up to sixteen parameters are reported; each one
has a different parameter code, from zero to fifteen.
The error events are recorded in non-volatile memory and can be retrieved even
after the drive has been reset or power cycled. If more that sixteen different events
are recorded during the lifetime of the drive, then the oldest events will be
overwritten. The error events are ordered from newest to oldest with the newest
error event being the first parameter code.
Page Code
16h
Each event is 72 bytes in length, including the four-byte parameter header, as
shown below.
Bits
7
Byte
0
(MSB)
1
Obsolet
2
(0)
DU
e
3
4
5
6
7
8
(MSB)
11
12
13
REPEAT
14
15
16
(MSB)
19
20
23
24
(MSB)
27
28
29
Reserved
30
31
32
(MSB)
63
64
65
66
(MSB)
71
72
73
Page Length
72 x number of parameters reported (1152 or 480h maximum)
6
5
4
PARAMETER CODE
(0)
(0)
TSD
ETC
PARAMETER LENGTH
RESERVED
D
C
ENSITY
M
T
EDIUM
LIFETIME MEDIA MOTION HOURS
Reserved
Reserved
A
S
DDITIONAL
ENSE
A
S
C
DDITIONAL
ENSE
ODE
VENDOR SPECIFIC CODE QUALIFIER
P
R
RODUCT
EVISION
HOURS SINCE LAST CLEAN
OPERATION CODE
RESERVED
MEDIUM ID NUMBER
Reserved
Reserved
TIMESTAMP
Reserved
T
EMPERATURE
3
2
1
F
& L
ORMAT
(00b)
TMC
(11 b)
(46h)
ODE
YPE
S
K
ENSE
EY
C
(ASC)
ODE
Q
(ASCQ)
UALIFIER
(
)
VSCQ
L
EVEL
S
A
ERVICE
CTION
T
O
IMESTAMP
RIGIN
Page 61
0
(LSB)
INKING
(LSB)
(LSB)
(LSB)
(LSB)
(LSB)
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