![background image](http://html1.mh-extra.com/html/quantum/dlt1-vs80-scsi/dlt1-vs80-scsi_interface-manual_770515112.webp)
Chapter 4: SCSI Commands
4-70
July 2004
81-81276-01 Rev A01
The MODE SENSE (10) data contains an 8-byte header followed by one 8-byte block descriptor,
followed by zero or more variable length pages.
Figure 4-45.
MODE SENSE (10) Data Header — Data Format
Bit
Byte
7
6
5
4
3
2
1
0
0 - 1
(MSB)
Mode Sense Data Length
(LSB)
2
Media Type
3
WP
Buffered Mode
Speed (0)
4 - 5
Reserved
6 - 7
(MSB)
Block Descriptor Length (8)
(LSB)
Table 4-40.
MODE SENSE (6/10) Data Header— Field Descriptions
Field Name
Description
Mode Sense Data
Length
This field specifies the length, in bytes, of the following MODE SENSE data that
is available to be transferred during the DATA IN phase. Mode Sense Data Length
does not include itself.
Media Type
The following list shows the media type as determined by the tape drive:
Type
00h
81h
85h
Description
Unknown or media not present
Cleaning Medium
DLTtape IV
WP
Write-Protected. When set to 0, this bit indicates that the medium is write-enabled.
When set to 1, this bit indicates that the medium is write-protected.
Buffered Mode
The tape drive implements Immediate Reporting on WRITE commands through
Buffered Mode.
When set to 0, the tape drive does not report a GOOD status on WRITE commands
until the data blocks are actually written to medium. When set to 1, the tape drive
reports GOOD status on WRITE commands as soon as the tape drive has
transferred the data block to the buffer. This is the default configuration for the
tape drive. If not using Buffered Mode, the tape drive suffers a degradation in
performance, but not capacity.
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: ......