Dell PowerVault TL4000 SCSI Reference Guide - Page 22

Serial, Number, Device, Identification

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Unit Serial Number page (80h) The Unit Serial Number VPD page contains 12 bytes of ASCII data representing a unique serial number of the media changer. Bit 7 6 5 4 3 2 1 0 Byte 0 Peripheral Qualifier (0) Peripheral Device Type (8) 1 Page Code (80h) 2 Reserved 3 Page Length (10h) 4 - Serial Number (12 ACSII bytes) 15 16 - Unique Logical Library Identifier 19 Note: If an unsupported LUN was initially specified, the Peripheral Qualifier will return 3h and the Peripheral Device Type will return 1Fh. Field descriptions: Serial Number: The 12 byte ASCII Serial Number may contain ASCII numbers and ASCII characters and is right justified with leading zeros. Unique Logical Library Identifier: Such as the ASCII representation of the logical library name, for example, _LL3. Device Identification page (83h) The Device Identification VPD page provides the means to retrieve identification descriptors from the media changer. Both fiber-channel and SCSI devices return the following Device Identification VPD page: Bit 7 6 5 4 3 2 1 0 Byte 0 Peripheral Qualifier (0) Peripheral Device Type (8) 1 Page Code (83h) 2 Reserved 3 Page Length (2Ch) 4 Reserved Code Set (2) 5 Reserved Identifier Type (1) 6 Reserved 7 Identifier Length (28h) 8 - Vendor Identification (8 ASCII bytes) 15 16 - Product Identification (16 ASCII bytes) 31 32 - Serial Number (12 ASCII bytes) 43 44 - Unique Logical Library Identifier 47 3-8 TL2000 and TL4000 SCSI Reference

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Unit
Serial
Number
page
(80h)
The
Unit
Serial
Number
VPD
page
contains
12
bytes
of
ASCII
data
representing
a
unique
serial
number
of
the
media
changer.
Bit
7
6
5
4
3
2
1
0
Byte
0
Peripheral
Qualifier
(0)
Peripheral
Device
Type
(8)
1
Page
Code
(80h)
2
Reserved
3
Page
Length
(10h)
4
-
15
Serial
Number
(12
ACSII
bytes)
16
-
19
Unique
Logical
Library
Identifier
Note:
If
an
unsupported
LUN
was
initially
specified,
the
Peripheral
Qualifier
will
return
3h
and
the
Peripheral
Device
Type
will
return
1Fh.
Field
descriptions:
Serial
Number:
The
12
byte
ASCII
Serial
Number
may
contain
ASCII
numbers
and
ASCII
characters
and
is
right
justified
with
leading
zeros.
Unique
Logical
Library
Identifier:
Such
as
the
ASCII
representation
of
the
logical
library
name,
for
example,
_LL3.
Device
Identification
page
(83h)
The
Device
Identification
VPD
page
provides
the
means
to
retrieve
identification
descriptors
from
the
media
changer.
Both
fiber-channel
and
SCSI
devices
return
the
following
Device
Identification
VPD
page:
Bit
7
6
5
4
3
2
1
0
Byte
0
Peripheral
Qualifier
(0)
Peripheral
Device
Type
(8)
1
Page
Code
(83h)
2
Reserved
3
Page
Length
(2Ch)
4
Reserved
Code
Set
(2)
5
Reserved
Identifier
Type
(1)
6
Reserved
7
Identifier
Length
(28h)
8
-
15
Vendor
Identification
(8
ASCII
bytes)
16
-
31
Product
Identification
(16
ASCII
bytes)
32
-
43
Serial
Number
(12
ASCII
bytes)
44
-
47
Unique
Logical
Library
Identifier
3-8
TL2000
and
TL4000
SCSI
Reference