Dell PowerVault TL4000 SCSI Reference Guide - Page 9

Library, Features - user guide

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Chapter 2. Library Features The library includes the following components: v Operator panel with LCD display and 4 buttons which allows you to monitor the media changer operations, control robotic operation and change configuration settings v Bar code scanner, the media changer uses the bar code scanner to read the bar codes from the data cartridges and report this information as part of the cartridge inventory v Ethernet port for connecting to a 10/100Base T Ethernet network. This connection allows remote monitoring of the media changer's operation, performing firmware upgrades and configuring its settings. This port is also called RMU (Remote Management Unit) v LVD SCSI or Fibre Channel port, through this port the host sends SCSI commands to both the media changer and the tape drive v Serial monitor port, through this port the media changer can be controlled by a console interface v Cartridge mover which moves cartridges from one location to the other. This element is also called a medium transfer element v Storage slots which store cartridges also referred to as storage elements v Import/Export element allows the user to import or export an cartridge into/from the inventory of the library v High Speed / High Density tape drive also referred to as data transfer element v Magazines, these cartridge carriers are used to hold cartridges in the library. Magazines can be removed from the library. Cleaning Cartridge Detection The media changer will recognize cleaning cartridges. Once a cleaning cartridge is recognized the media changer will report its special status in the Read Element Status data. Auto Clean Mode | The media changer supports Auto Clean Mode. Application clients must provide a place within the library | to house the cleaning cartridge. Some libraries may have a designated cleaning slot (DCS) where the | cleaning cartridge may reside. In the absence of a DCS, the application client must reserve a slot (element | address that will not be seen by the host). For details on reserving element addresses, see the | Configuration section of your Users Guide. The cleaning cartridge can then be physically moved into that | ″reserved″ element address to be available when called for by Auto Clean. User Commanded Cleaning The media changer may be instructed to clean a tape drive by means of OCP or RMU commands. When the medium changer is instructed to clean a drive, the media changer will load a cleaning cartridge into the tape drive and return this cartridge to its source element address once the cleaning operation is finished. When no cleaning cartridge is available in the librarys inventory then the media changer will request the user to insert a cleaning cartridge. After the cleaning operation is completed the media changer will post a message to the user about the status of the cleaning operation. Control Modes The media changer can receive commands from the following interfaces: SCSI, RMU, OCP and Console. The default interface for receiving media access commands is the SCSI interface. The media changer accepts media access SCSI commands when the media changer is on-line. The media changer is off-line when a user sends a media access command from either the RMU, OCP or Console interface. 2-1

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Chapter
2.
Library
Features
The
library
includes
the
following
components:
v
Operator
panel
with
LCD
display
and
4
buttons
which
allows
you
to
monitor
the
media
changer
operations,
control
robotic
operation
and
change
configuration
settings
v
Bar
code
scanner,
the
media
changer
uses
the
bar
code
scanner
to
read
the
bar
codes
from
the
data
cartridges
and
report
this
information
as
part
of
the
cartridge
inventory
v
Ethernet
port
for
connecting
to
a
10/100Base
T
Ethernet
network.
This
connection
allows
remote
monitoring
of
the
media
changer's
operation,
performing
firmware
upgrades
and
configuring
its
settings.
This
port
is
also
called
RMU
(Remote
Management
Unit)
v
LVD
SCSI
or
Fibre
Channel
port,
through
this
port
the
host
sends
SCSI
commands
to
both
the
media
changer
and
the
tape
drive
v
Serial
monitor
port,
through
this
port
the
media
changer
can
be
controlled
by
a
console
interface
v
Cartridge
mover
which
moves
cartridges
from
one
location
to
the
other.
This
element
is
also
called
a
medium
transfer
element
v
Storage
slots
which
store
cartridges
also
referred
to
as
storage
elements
v
Import/Export
element
allows
the
user
to
import
or
export
an
cartridge
into/from
the
inventory
of
the
library
v
High
Speed
/
High
Density
tape
drive
also
referred
to
as
data
transfer
element
v
Magazines,
these
cartridge
carriers
are
used
to
hold
cartridges
in
the
library.
Magazines
can
be
removed
from
the
library.
Cleaning
Cartridge
Detection
The
media
changer
will
recognize
cleaning
cartridges.
Once
a
cleaning
cartridge
is
recognized
the
media
changer
will
report
its
special
status
in
the
Read
Element
Status
data.
Auto
Clean
Mode
The
media
changer
supports
Auto
Clean
Mode.
Application
clients
must
provide
a
place
within
the
library
to
house
the
cleaning
cartridge.
Some
libraries
may
have
a
designated
cleaning
slot
(DCS)
where
the
cleaning
cartridge
may
reside.
In
the
absence
of
a
DCS,
the
application
client
must
reserve
a
slot
(element
address
that
will
not
be
seen
by
the
host).
For
details
on
reserving
element
addresses,
see
the
Configuration
section
of
your
Users
Guide.
The
cleaning
cartridge
can
then
be
physically
moved
into
that
″
reserved
″
element
address
to
be
available
when
called
for
by
Auto
Clean.
User
Commanded
Cleaning
The
media
changer
may
be
instructed
to
clean
a
tape
drive
by
means
of
OCP
or
RMU
commands.
When
the
medium
changer
is
instructed
to
clean
a
drive,
the
media
changer
will
load
a
cleaning
cartridge
into
the
tape
drive
and
return
this
cartridge
to
its
source
element
address
once
the
cleaning
operation
is
finished.
When
no
cleaning
cartridge
is
available
in
the
librarys
inventory
then
the
media
changer
will
request
the
user
to
insert
a
cleaning
cartridge.
After
the
cleaning
operation
is
completed
the
media
changer
will
post
a
message
to
the
user
about
the
status
of
the
cleaning
operation.
Control
Modes
The
media
changer
can
receive
commands
from
the
following
interfaces:
SCSI,
RMU,
OCP
and
Console.
The
default
interface
for
receiving
media
access
commands
is
the
SCSI
interface.
The
media
changer
accepts
media
access
SCSI
commands
when
the
media
changer
is
on-line.
The
media
changer
is
off-line
when
a
user
sends
a
media
access
command
from
either
the
RMU,
OCP
or
Console
interface.
2-1
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