Dell PowerVault TL4000 SCSI Reference Guide - Page 74

Field, descriptions, PVolTag, AVolTag, Import/Export, Element, Address, ImpExp, Except, Access,

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Page 74 highlights

Bit 7 6 5 4 3 2 1 0 Byte 10 OIR CMC InEnab ExEnab Access Except ImpExp Full 11 Reserved 12 Additional Sense Code 13 Additional Sense Code Qualifier 14 - Reserved 16 17 SValid Invert Reserved ED Medium Type 18 - Source Storage Element Address 19 20 - Primary Volume Tag Information 55 (field omitted if PVolTag = 0) 56 - Reserved 59 (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. Import/Export Element Address: This field provides the address of the import/export element of this changer device whose status is reported by this element descriptor block. Full: A full bit value of 1 indicates that the import/export element address contains a unit of media. A value of 0 indicates the import/export element address is empty. ImpExp: An import export bit of one indicates the unit of media in the import/export element was placed there by an operator. An bit of zero indicates the unit of media in the import/export element was placed there by the medium transport element. Except: Exception. An exception bit of 0 indicates the 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. Access: When set to 1 this field indicates that access to the import/export element by a medium transport element is allowed. If 0, indicates access to the import/export element by a medium transport element is denied. ExEnab: An Export Enable bit of one indicates that the import/export element supports movement of media into of the scope of the media changer device. InEnab: An InEnab bit of zero indicates that this element does not support import actions. An Import 3-60 TL2000 and TL4000 SCSI Reference

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Bit
7
6
5
4
3
2
1
0
Byte
10
OIR
CMC
InEnab
ExEnab
Access
Except
ImpExp
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.
Import/Export
Element
Address:
This
field
provides
the
address
of
the
import/export
element
of
this
changer
device
whose
status
is
reported
by
this
element
descriptor
block.
Full:
A
full
bit
value
of
1
indicates
that
the
import/export
element
address
contains
a
unit
of
media.
A
value
of
0
indicates
the
import/export
element
address
is
empty.
ImpExp:
An
import
export
bit
of
one
indicates
the
unit
of
media
in
the
import/export
element
was
placed
there
by
an
operator.
An
bit
of
zero
indicates
the
unit
of
media
in
the
import/export
element
was
placed
there
by
the
medium
transport
element.
Except:
Exception.
An
exception
bit
of
0
indicates
the
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.
Access:
When
set
to
1
this
field
indicates
that
access
to
the
import/export
element
by
a
medium
transport
element
is
allowed.
If
0,
indicates
access
to
the
import/export
element
by
a
medium
transport
element
is
denied.
ExEnab:
An
Export
Enable
bit
of
one
indicates
that
the
import/export
element
supports
movement
of
media
into
of
the
scope
of
the
media
changer
device.
InEnab:
An
InEnab
bit
of
zero
indicates
that
this
element
does
not
support
import
actions.
An
Import
3-60
TL2000
and
TL4000
SCSI
Reference