Chapter 4: SCSI Commands
4-12
July 2004
81-81276-01 Rev A01
Subsystem Components Revision Page (C1h)
The following information precisely identifies the revision of tape drive subsystem components.
N
OTE
:
Note: This page is for Quantum use only; page content is subject to
change at any time.
Figure 4-8.
Subsystem Components Revision Page — Data Format
Bit
Byte
7
6
5
4
3
2
1
0
0
Peripheral Qualifier
Peripheral Device Type
1
Page Code (C1h)
2
Reserved
3
Page Length (14h)
4 – 23
Unit Part Number
Table 4-6.
Subsystem Components Revision Page — Field Descriptions
Field Name
Description
Peripheral
Qualifier
Contains 000b if the command is directed to a valid device. Contains 011b if
there is no device at the selected LUN.
Peripheral
Device Type
Contains 01h if the LUN is 0h, 8h if the LUN selects an attached library, or
1Fh if there is no device at the selected LUN.
Page Code
A value of C1h identifies this as the Subsystem Components Revision page.
Page Length
Indicates the size of the returned Subsystem Components Revision page.
Unit Part
Number
The part number of the tape drive; this number appears on a bar code label
on the base of the drive (on the side, at the back of the drive), and is different
from the serial number. The drive returns the unit part number in ASCII
format. The value is left justified and unused bytes are padded with spaces.
Summary of Contents for DLT1/VS80 SCSI
Page 1: ...DLT1 VS80 SCSI Interface Guide...
Page 6: ...DLT1 VS80 SCSI Interface Guide vi July 2004 81 81276 01 Rev A01 Notes...
Page 12: ...Table of Contents xii July 2004 81 81276 01 Rev A01 Notes...
Page 16: ...List of Figures xiv July 2004 81 81276 01 Rev A01 Notes...
Page 20: ...List of Tables xviii July 2004 81 81276 01 Rev A01 Notes...
Page 24: ...Chapter 1 Introduction 1 4 July 2004 81 81276 01 Rev A01 Notes...
Page 32: ...Chapter 2 General SCSI Bus Operation 2 8 July 2004 81 81276 01 Rev A01 Notes...
Page 42: ...Chapter 3 SCSI Messages 3 10 July 2004 81 81276 01 Rev A01 Notes...
Page 181: ......
