SCSI Commands
5-44
Quantum DLT 4000 Tape Drive
LOG SENSE Command (4Dh) (continued)
5.8.3 Read (Page 03h) / Write (Page 02h) Error LOG SENSE Page
Each Log page begins with a 4-byte header followed by a number of log
parameter blocks. Each block consists of 8 bytes except for parameter code 05h.
The log parameter block for the parameter total bytes processed (05h) is 12
bytes, since the parameter value is 8 bytes long.
Bit
Byte
7
6
5
4
3
2
1
0
0
Reserved
Page Code
1
Reserved
2 - 3
(MSB)
Page Length
(LSB)
Figure 5–17 Read / Write Error LOG SENSE Header Format
Table 5–20 Read / Write Error LOG SENSE Header Field Descriptions
Field Name
Description
Page Code
The Page Code echoes the page code that was specified in the LOG SENSE
command descriptor block.
Page Length
The Page Length field specifies the total number of bytes contained in this log
page, not including the four bytes that make up the header.
For example, if the PPC bit is 0 and the parameter pointer is 0, the target returns 4
bytes of page header with page length of 44h followed by 8 bytes of parameter
value data for each parameter code except code 05h (for code 05h, it returns 12
bytes). Therefore, for parameter codes 00h, 01h, 02h, 03h, 04h, 06h, and 8000h,
each page will be 8 bytes.
Summary of Contents for DLTtape DLT 4000
Page 1: ...DLT 4000 Tape Drive Product Manual November 10 2003 81 60043 04 ...
Page 5: ...USER MANUAL STATEMENTS FOR CLASS B EQUIPMENT continued ...
Page 6: ......
Page 24: ...About This Manual Quantum DLT 4000 Tape Drive xxiv ...
Page 62: ...Hardware Implementation 2 28 Quantum DLT 4000 Tape Drive ...
Page 100: ...Messages 4 12 Quantum DLT 4000 Tape Drive ...
Page 264: ...SCSI Commands 5 164 Quantum DLT 4000 Tape Drive ...
Page 274: ...Appendix B EEPROM Resident Bugcheck and Event Logs B 6 Quantum DLT 4000 Tape System ...
Page 280: ...Appendix C Updating the Firmware C 6 Quantum DLT 4000 Tape Drive ...
Page 298: ...Index Index 6 Quantum DLT4000 Tape Drive ...
Page 299: ......