Dell PowerVault TL4000 SCSI Reference Guide - Page 70

Field, descriptions, PVolTag, AVolTag, Medium, Transport, Element, Address, Except, Additional,

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Bit 7 Byte 10 11 12 13 14 16 17 SValid 18 19 20 55 56 59 6 5 4 3 2 1 0 Reserved Except Reserved Full Reserved Additional Sense Code Additional Sense Code Qualifier Reserved Invert Reserved ED Source Storage Element Address Medium Type Primary Volume Tag Information (field omitted if PVolTag = 0) Reserved (field moved up if Primary Volume Tag Information field is omitted) Field descriptions: PVolTag: Primary Volume Tag. When set this flag indicates valid information in the Primary Volume Tag Information field. This flag will be set when the VolTag field was set in the CDB. AVolTag: Alternate Volume Tag. Always set to 0. Medium Transport Element Address: This field provides the address of the Medium Transport Element of this changer device whose status is reported by this element descriptor block. Except: Exception. An exception bit of 0 indicates the medium transport element is in a normal state. If this bit is 1, information on the abnormal state may be available in the Additional Sense Code and Additional Sense Code Qualifier fields. Full: A full bit value of one indicates that the medium transport element of the changer device contains a tape cartridge. A value of 0 indicates the medium transport element is empty. Additional Sense Code: This field may provide specific information about an abnormal medium transport state (valid only if the Except bit is 1). Additional Sense Code Qualifier: This field may provide more detail about an abnormal medium transport state (valid only if the Except bit is 1). SValid: Source Valid. When set to 1, indicates that the Source Storage Element Address field and the Invert bit information fields are valid. When 0, indicates that the values in these fields are not valid. Invert: The library uses singe sided media and does not support inverting of the media. The value reported for this field is 0. 3-56 TL2000 and TL4000 SCSI Reference

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Bit
7
6
5
4
3
2
1
0
Byte
10
Reserved
Except
Reserved
Full
11
Reserved
12
Additional
Sense
Code
13
Additional
Sense
Code
Qualifier
14
-
16
Reserved
17
SValid
Invert
Reserved
ED
Medium
Type
18
-
19
Source
Storage
Element
Address
20
-
55
Primary
Volume
Tag
Information
(field
omitted
if
PVolTag
=
0)
56
-
59
Reserved
(field
moved
up
if
Primary
Volume
Tag
Information
field
is
omitted)
Field
descriptions:
PVolTag:
Primary
Volume
Tag.
When
set
this
flag
indicates
valid
information
in
the
Primary
Volume
Tag
Information
field.
This
flag
will
be
set
when
the
VolTag
field
was
set
in
the
CDB.
AVolTag:
Alternate
Volume
Tag.
Always
set
to
0.
Medium
Transport
Element
Address:
This
field
provides
the
address
of
the
Medium
Transport
Element
of
this
changer
device
whose
status
is
reported
by
this
element
descriptor
block.
Except:
Exception.
An
exception
bit
of
0
indicates
the
medium
transport
element
is
in
a
normal
state.
If
this
bit
is
1,
information
on
the
abnormal
state
may
be
available
in
the
Additional
Sense
Code
and
Additional
Sense
Code
Qualifier
fields.
Full:
A
full
bit
value
of
one
indicates
that
the
medium
transport
element
of
the
changer
device
contains
a
tape
cartridge.
A
value
of
0
indicates
the
medium
transport
element
is
empty.
Additional
Sense
Code:
This
field
may
provide
specific
information
about
an
abnormal
medium
transport
state
(valid
only
if
the
Except
bit
is
1).
Additional
Sense
Code
Qualifier:
This
field
may
provide
more
detail
about
an
abnormal
medium
transport
state
(valid
only
if
the
Except
bit
is
1).
SValid:
Source
Valid.
When
set
to
1,
indicates
that
the
Source
Storage
Element
Address
field
and
the
Invert
bit
information
fields
are
valid.
When
0,
indicates
that
the
values
in
these
fields
are
not
valid.
Invert:
The
library
uses
singe
sided
media
and
does
not
support
inverting
of
the
media.
The
value
reported
for
this
field
is
0.
3-56
TL2000
and
TL4000
SCSI
Reference