Dell PowerVault TL4000 SCSI Reference Guide - Page 61

Open/close, Import/export, Element

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OPEN/CLOSE IMPORT/EXPORT ELEMENT (1Bh) The OPEN/CLOSE IMPORT/EXPORT ELEMENT command allows an application client to open the Import/Export element, also referred to as I/O Station. When the action code is set to Open Import/Export Element, the library will open the import/export element. The library will not return a Check Condition status when the import/export element was already open. When media removal is prevented and the I/O Station is full the OPEN/CLOSE IMPORT/EXPORT ELEMENT will return a Check Condition with sense data set to Medium Removal Prevented. Bit 7 Byte 0 1 2 (MSB) 3 4 5 6 LUN Reserved 5 4 3 2 1 Operation Code (1Bh) Reserved Import/Export Element Address Control Action Code 0 (LSB) Field descriptions: Service Action : By means of the Action Code the application client specifies the requested action for the I/O Station specified by the Import/Export Element Address. Action Code 00h 01h - 1Fh Description Open the Import / Export element Reserved Import/Export Element Address: The Import / Export Element Address field specifies the element address of the Import / Export element. Chapter 3. Supported SCSI Commands 3-47

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OPEN/CLOSE
IMPORT/EXPORT
ELEMENT
(1Bh)
The
OPEN/CLOSE
IMPORT/EXPORT
ELEMENT
command
allows
an
application
client
to
open
the
Import/Export
element,
also
referred
to
as
I/O
Station.
When
the
action
code
is
set
to
Open
Import/Export
Element,
the
library
will
open
the
import/export
element.
The
library
will
not
return
a
Check
Condition
status
when
the
import/export
element
was
already
open.
When
media
removal
is
prevented
and
the
I/O
Station
is
full
the
OPEN/CLOSE
IMPORT/EXPORT
ELEMENT
will
return
a
Check
Condition
with
sense
data
set
to
Medium
Removal
Prevented.
Bit
7
6
5
4
3
2
1
0
Byte
0
Operation
Code
(1Bh)
1
LUN
Reserved
2
(MSB)
Import/Export
Element
Address
3
(LSB)
4
Reserved
Action
Code
5
Control
Field
descriptions:
Service
Action
:
By
means
of
the
Action
Code
the
application
client
specifies
the
requested
action
for
the
I/O
Station
specified
by
the
Import/Export
Element
Address.
Action
Code
Description
00h
Open
the
Import
/
Export
element
01h
-
1Fh
Reserved
Import/Export
Element
Address:
The
Import
/
Export
Element
Address
field
specifies
the
element
address
of
the
Import
/
Export
element.
Chapter
3.
Supported
SCSI
Commands
3-47