Chapter 4: SCSI Commands
4-88
July 2004
81-81276-01 Rev A01
If any READ command cannot be completed successfully, the tape drive returns a CHECK
CONDITION status. Further commands should attempt to move past the error and complete
successfully.
4.13 READ BLOCK LIMITS (05h)
The READ BLOCK LIMITS command tells the tape drive to return its limits for block length. The
tape drive sends this information during the DATA IN phase of the command. The command does not
reflect the currently selected block size, only the available limits; MODE SENSE returns the current
block size.
Figure 4-58.
READ BLOCK LIMITS (05h) Command Descriptor Block — Data Format
Figure 4-59.
READ BLOCK LIMITS (05h) — Data Format
Bit
Byte
7
6
5
4
3
2
1
0
0
Operation Code (05h)
1
Logical Unit Number
Reserved
2 - 4
Reserved
5
Unused
Reserved
Flag
Link
Bit
Byte
7
6
5
4
3
2
1
0
0
Reserved
Granularity
1 - 3
(MSB)
Maximum Block Length
(LSB)
4 - 5
(MSB)
Minimum Block Length
(LSB)
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: ......
