Dell PowerVault TL4000 SCSI Reference Guide - Page 39

Transport, Geometry, Parameters

Get Dell PowerVault TL4000 PDF manuals and user guides View all Dell PowerVault TL4000 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 39 highlights

Field descriptions: First Medium Transport Element Address: By means of this field the host can specify the address of the accessor cartridge handler. Number of Medium Transport Elements: By means of this field the host can specify the number of robotic cartridge handlers within the library. If the Number of Medium Transport Elements is greater than the default value returned in the Mode Sense parameter data, the library shall return a Check Condition. First Storage Element Address: By means of this field the host can specify the starting address for the cartridge storage locations. Number of Storage Elements: By means of this field the host can specify the number of cartridge storage locations. If the Number of Storage Elements is greater than the default value returned in the Mode Sense parameter data, the library shall return a Check Condition. First Import/Export Element Address: By means of this field the host can specify the address of the import/export element. Number of Import/Export Elements: By means of this field the host can specify the maximum number of import/export elements. If the Number of Import/Export Elements is greater than the default value returned in the Mode Sense parameter data, the library shall return a Check Condition. First Data Transfer Element: By means of this field the host can specify the starting address of the installed tape drives. Number of Data Transfer Elements: By means of this field the host can specify the number of tape drives installed. If the Number of Data Transfer Elements is greater than the default value returned in the Mode Sense parameter data, the library shall return a Check Condition. Note: The actual number of installed elements cannot be changed by the field values in the Element Address Assignment page. Specifying a value other than the specified number returns a Check Condition status with the Sense Key set to ILLEGAL REQUEST. Transport Geometry Parameters page (1Eh) The Transport Geometry Parameters Page is provided in the SCSI-2 command set to determine whether each medium transport element is a member of a set of elements in a robotic subsystem, and if the medium transport is capable of media rotation. The initiator cannot change this information. Byte 0 1 2 3 Bit 7 Reserved 6 SPF (0) 5 4 3 2 Page Code (1Eh) Additional Page Length (02h) Reserved Member Number in Transport Element Set (0) 1 0 Rotate (0) Field descriptions: Rotate: Rotation of media is not an implemented feature, so the value returned for this field bit is 0. Member Number in Transport Element Set: This field indicates the specific transport element in the system to apply this descriptor to. The library has only one transport element , so the value returned for this field is 0. Chapter 3. Supported SCSI Commands 3-25

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
Field
descriptions:
First
Medium
Transport
Element
Address:
By
means
of
this
field
the
host
can
specify
the
address
of
the
accessor
cartridge
handler.
Number
of
Medium
Transport
Elements:
By
means
of
this
field
the
host
can
specify
the
number
of
robotic
cartridge
handlers
within
the
library.
If
the
Number
of
Medium
Transport
Elements
is
greater
than
the
default
value
returned
in
the
Mode
Sense
parameter
data,
the
library
shall
return
a
Check
Condition.
First
Storage
Element
Address:
By
means
of
this
field
the
host
can
specify
the
starting
address
for
the
cartridge
storage
locations.
Number
of
Storage
Elements:
By
means
of
this
field
the
host
can
specify
the
number
of
cartridge
storage
locations.
If
the
Number
of
Storage
Elements
is
greater
than
the
default
value
returned
in
the
Mode
Sense
parameter
data,
the
library
shall
return
a
Check
Condition.
First
Import/Export
Element
Address:
By
means
of
this
field
the
host
can
specify
the
address
of
the
import/export
element.
Number
of
Import/Export
Elements:
By
means
of
this
field
the
host
can
specify
the
maximum
number
of
import/export
elements.
If
the
Number
of
Import/Export
Elements
is
greater
than
the
default
value
returned
in
the
Mode
Sense
parameter
data,
the
library
shall
return
a
Check
Condition.
First
Data
Transfer
Element:
By
means
of
this
field
the
host
can
specify
the
starting
address
of
the
installed
tape
drives.
Number
of
Data
Transfer
Elements:
By
means
of
this
field
the
host
can
specify
the
number
of
tape
drives
installed.
If
the
Number
of
Data
Transfer
Elements
is
greater
than
the
default
value
returned
in
the
Mode
Sense
parameter
data,
the
library
shall
return
a
Check
Condition.
Note:
The
actual
number
of
installed
elements
cannot
be
changed
by
the
field
values
in
the
Element
Address
Assignment
page.
Specifying
a
value
other
than
the
specified
number
returns
a
Check
Condition
status
with
the
Sense
Key
set
to
ILLEGAL
REQUEST.
Transport
Geometry
Parameters
page
(1Eh)
The
Transport
Geometry
Parameters
Page
is
provided
in
the
SCSI-2
command
set
to
determine
whether
each
medium
transport
element
is
a
member
of
a
set
of
elements
in
a
robotic
subsystem,
and
if
the
medium
transport
is
capable
of
media
rotation.
The
initiator
cannot
change
this
information.
Bit
7
6
5
4
3
2
1
0
Byte
0
Reserved
SPF
(0)
Page
Code
(1Eh)
1
Additional
Page
Length
(02h)
2
Reserved
Rotate
(0)
3
Member
Number
in
Transport
Element
Set
(0)
Field
descriptions:
Rotate:
Rotation
of
media
is
not
an
implemented
feature,
so
the
value
returned
for
this
field
bit
is
0.
Member
Number
in
Transport
Element
Set:
This
field
indicates
the
specific
transport
element
in
the
system
to
apply
this
descriptor
to.
The
library
has
only
one
transport
element
,
so
the
value
returned
for
this
field
is
0.
Chapter
3.
Supported
SCSI
Commands
3-25