Possible sense keys, Possible, Sense – Dell PowerVault TL2000 User Manual
Page 91: Keys
Response
Code:
A
value
of
70h
indicates
a
current
error
the
report
is
associated
with
the
most
recently
received
command.
Response
code
value
71h
(deferred
errors)
not
implemented.
No
other
values
are
returned.
Segment
Number:
This
byte
contains
the
number
of
the
current
segment
descriptor
if
the
Request
Sense
command
is
the
response
to
a
Copy,
Compare
or
Copy
and
Verify
command.
It
is
always
zero.
Filemark:
This
bit
is
only
used
in
sequential
access
devices.
It
is
always
set
to
zero.
EOM:
The
End
Of
Medium
bit
is
for
sequential-access
and
printer
devices.
This
bit
is
always
set
to
zero.
ILI:
An
Incorrect
Length
Indicator
indicates
that
the
requested
block
length
did
not
match
the
logical
of
the
data
on
the
medium.
This
bit
is
always
set
to
zero.
Sense
Key,
ASC,
ASCQ:
Sense
Key,
Additional
Sense
Code
and
Additional
Sense
Code
Qualifier
provide
a
hierarchy
of
information.
The
sense
key
provides
generic
categories
in
which
error
and
exception
conditions
may
be
reported.
Additional
sense
code
provide
further
detail
describing
the
sense
code.
Additional
sense
code
qualifiers
add
further
detail
to
the
additional
sense
code.
These
bytes
show
detailed
information
about
the
error
and
exception
conditions.
See
Information:
The
contents
of
the
information
field
is
device-type
or
command
specific.
These
bytes
are
always
zero.
Additional
Sense
Length:
This
field
specifies
the
number
of
additional
sense
bytes
to
follow.
If
the
allocation
length
of
the
command
descriptor
block
is
too
small
to
transfer
all
of
the
additional
sense
bytes,
the
additional
sense
is
not
adjusted
to
reflect
the
truncation.
SKSV:
When
the
Sense-Key
Specific
Valid
bit
is
set
to
zero
the
data
in
the
Sense
Key
Specific
field
(Bytes
15,
16,
and
17)
do
not
contain
valid
data.
When
the
SKSV
bit
is
set
to
one
bytes
15,16
and
17
contain
additional
information
regarding
the
error
condition.
C/D:
A
command
data
(C/D)
bit
of
one
indicates
that
the
illegal
parameter
is
in
the
CDB.
A
C/D
bit
of
zero
indicates
that
the
illegal
condition
is
in
the
data
parameters
send
by
the
host.
BPV:
A
bit
pointer
valid
(BPV)
bit
of
zero
indicates
that
the
value
in
the
Bit
Pointer
field
is
not
valid.
A
BPV
bit
of
one
indicates
that
the
Bit
Pointer
field
specifies
which
bit
of
the
byte
specified
in
the
Field
Pointer
field
is
in
error.
Field
Pointer:
The
Field
Pointer
field
indicates
which
byte
of
the
cdb
or
parameter
data
was
in
error.
Bytes
are
numbered
starting
from
zero,
as
shown
in
the
tables
describing
the
commands
and
parameters.
Possible
Sense
Keys
Sense
Key
Name
Description
0h
NO
SENSE
Indicates
that
there
is
no
specific
sense
key
information
to
be
reported.
1h
RECOVERED
ERROR
Indicates
that
the
last
command
completed
successfully
with
some
recovery
action
performed
by
the
device
server.
2h
NOT
READY
Indicates
that
the
logical
unit
addressed
cannot
be
accessed.
Operator
intervention
may
be
required
to
correct
this
condition.
4h
HARDWARE
ERROR
Indicates
that
the
device
server
detected
a
non-recoverable
hardware
failure
(for
example,
controller
failure,
device
failure,
parity
error,
etc.)
while
performing
the
command
or
during
a
self
test.
Chapter
3.
Supported
SCSI
Commands
3-77