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Chapter 4: SCSI Commands
4-44
July 2004
81-81276-01 Rev A01
4.9
MODE SELECT (15h/55h)
The MODE SELECT command enables the host to configure the tape drive. Implementing MODE
SELECT and MODE SENSE requires a certain amount of handshaking between the host and the tape
drive. Before configuring the tape drive, the host should issue a MODE SENSE to get the current
configuration and determine what parameters are configurable. The host interprets this information
and can then issue MODE SELECT to set the tape drive to the host's preferred configuration.
Figure 4-27.
MODE SELECT (15h) 6-Byte Command Descriptor Block — Data Format
Table 4-26.
Device Status (3Eh) Log Page Parameter Code (0001h) — Field Descriptions
Field Name
Description
ClnQ
Set to 1 if a Cleaning Required condition exists. This is a recovered error status.
ClnR
Set to 1 if a Cleaning Requested condition exists. This is a hard error status.
ClnEx
Set to 1 if the cleaning medium is used up.
Parameter Code
(0002h)
The value of this parameter contains the number of loads over the life of the tape
drive.
Bit
Byte
7
6
5
4
3
2
1
0
0
Operation Code (15h)
1
Logical Unit Number
PF
Reserved
SP(0)
2 - 3
Reserved
4
Parameter List Length
5
Unused
Reserved
Flag
Link
Summary of Contents for DLTtape DLT1
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...
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