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SCSI Commands
Field Descriptions
Unit Serial Number Page (80h)
Bits
Byte
7
6
12
13
14
Field
Bytes
Peripheral Quali-
0
fier
Peripheral Device
0
Type
Page Code
1
Reserved
2
Page Length
3
Supported Vital
4
Product Data
Page Code
Unit Serial Num-
5
ber Page Code
Device Identifica-
6
tion Page Code
SCSI Firmware
7
Revision Page
Code
Servo Firmware
8
Revision Page
Code
Head Assembly
9
Serial Number
Page
Reel Motor 1 Se-
10
rial Number Page
Reel Motor 2 Se-
11
rial Number Page
Board Serial
12
Number Page
Base Mechanical
13
Serial Number
Page
Drive Status Page
14
The Unit Serial Number Page contains a single value, which is a 12 byte ASCII
string. The string, with the Vendor Identification and Product Identification fields in
the standard Inquiry data, uniquely identifies the drive.
Bits
Byte
7
6
0
Peripheral Qualifier
5
4
3
Board Serial Number Page Code
Base Mechanical Serial Number Page Code
Drive Status Page Code
Bits
Description
5-7
Always 000b.
0-4
Normally 01h to indicate a sequential access device.
7Fh indicates that a logical unit is not present. This value is
returned when an invalid LUN was in the last Identify mes-
sage, or the LUN field of the Identify CDB.
Always 0, indicating the Supported Vital Product Data In-
quiry Page
Always 0
Always 0Bh to indicate 11 listed pages.
Always 00h, the page code of the Supported Vital Product
Data Inquiry Page
Always 80h, the page code of the Unit Serial Number Page
Always 83h, the page code of the Device Identification Page
Always C0h, the page code of the SCSI Firmware Revision
Page
Always C1h, the page code of the Servo Firmware Revision
Page
Always C2h, the page code of the Head Assembly Serial
Number Page.
Always C3h, the page code of the Reel Motor 1 Serial Num-
ber Page.
Always C4h, the page code of the Reel Motor 2 Serial Num-
ber Page.
Always C5h, the page code of the Board Serial Number
Page.
Always C6h, the page code of the Base Mechanical Serial
Number Page.
Always DFh, the page code of the current drive and car-
tridge state.
5
4
3
Peripheral Device Type
Page 25
2
1
0
2
1
0
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